CA2109919C - Antenna coupling apparatus for a cordless telephone - Google Patents

Antenna coupling apparatus for a cordless telephone

Info

Publication number
CA2109919C
CA2109919C CA002109919A CA2109919A CA2109919C CA 2109919 C CA2109919 C CA 2109919C CA 002109919 A CA002109919 A CA 002109919A CA 2109919 A CA2109919 A CA 2109919A CA 2109919 C CA2109919 C CA 2109919C
Authority
CA
Canada
Prior art keywords
plate
coupled
hinge
main body
antenna
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002109919A
Other languages
French (fr)
Inventor
Eric L. Krenz
James P. Phillips
Louis J. Vannatta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA2109919C publication Critical patent/CA2109919C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/084—Pivotable antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas

Abstract

The antenna coupling apparatus of the present inven-tion couples an antenna, located in a hinged element (102) of a wireless communication device, to the receiver (401) of the de-vice. In the preferred embodiment, the communication device is a radiotelephone. The coupling is achieved without contact or flexible cable by parallel plate capacitors (201 and 202) in the hinge of the communication device. The capacitors (201 and 202) additionally act as a matching network for the antenna.

Description

~ -1- 2109919 ANTENNA COUPLING APPARATUS FOR A CORDLESS
TELEPHONE
s The l"eqt7nt i~Lion relatcs generally to the field of c~--.---.-..;c~.~Qn~ and particularly to ont-nno coupling for cordless telephones.

1 0 ~

The convent~ mean6 for coupling ~ignol~ in por~able two-way radios and pagers, between the ---tt~ o and ~e signal p.occ~sDr has been through the use of a coa~ial 15 connector found within the housing of the particular device.
A ~i~ic~llty esist~ whenever RF energy must be L-~e.-~d between objectF that rotate relative to one another. .~ ing contact~ are one solution but they have a l;---;tt- l life due to wear and may cause electrical noise. Fle-ihle cables are an-2 0 other solution but these limit the rotation, can cause noise,and have a l;~ te 1 fl_-ing life. There is a r~ ;ng neet for a small, in^~n~ve, and reliohle mean~ for cou~ g RF en-- ergy between two ~ ,~6, part6.

&mmE~oftheI~

The ~y~a~u8 of the ~.~se~t ~ n enco-~ ee an Ant~nn~ co ~Y1;~L a~ s for a wireless co~ An device. The to?e~hone has L,~sce;v".g means for ~
3 0 ting and ~ce;~ing ~ign~ . The transceiving means is coupled to an Ant-nn-- by the _n~enn~ co~lrling ~l ~a.stus. In one em-bodiment, the ayys~tus is co~ ;Re(3 of a first and second plate coupled to the ~snsce;v g means and a third and fourth plate cc~lrle-l to the A~tf.-""-- The third plate is 3 5 capacitively co~rle~ to the Srst plate and Ec~ ted f~om the first plate by a first t~ le~l ;c matenal. The fourth plate is J~

capacitively ~pl ~d to the ~eco~l plate and ~_~ated from the ~e~on~l plate by a ~ocQ~ Dle~ ;c mate~al.

EIG. 1 shows a ~Dl,e- L~e ~iew of a band-held radio-telephone UD1I~g the antenna coupling a~ lus of tbe preDent ~
EIG. 2 shows a detailed view of the 9ntonno Cl'Pli~E
1 0 apparatus of the ~3e~ i~ lion coupled to an ~ te-~ o in a hinged element.
~ IG. 3 Dhow~ a ~chematic of the el~ ic~l equi~alent of the Ant^nna cc-~ apparatus.
~ IG. 4 shows a block diagram of a t ypical radiotele-1 5 phone.
~ IG. 5 Dhows an _l~,~te ~ombo~iment of the ~ ee.,t~e~.~ion The o-nPnn~ co~pli~ ~ lus of the ~.ese~.t inven-tion capacitively couples RF energy between a main body of an electronic de~ice and a l.i.~6_d cl~ of the de~ice. The cou-pling &}.l.&alus achieves the RF coupliI~g ~;th~ut conto~Q or 2 5 ~e~ible cables to wear out PIG. 1 illu~l-ate_ a portable radiotelcp~ ?ne in which the ~t ....~ coupling ~ral,uS of the lJ.wL..t ~,~.-Lon can be used. The r~liot~lephone is co~l .;sed of a main body (101) and a hi~g~,d elemPnt (102). The hinged element (102) is at-3 0 tached to the main body (101) t_rough hing~ The ontennovcol~*ing al.l,a.atus (103) iB co-o~i~lly lo~-o-~ 1 in the hinge as showD in the c.,~a~ a~ portion of EIG. 1.
T_e main body (101) contains a .e~;~c. (401) in ~ it;o-to the other ele~..".ics ~ uL¢d by the r~iot~lel~hnne A
3 5 ~mplifie-l block diagram of the ~3uive~ sect;on (401) and the other elecho-ucs is illusLated in FIG 4. Refer,~g again to ~3~ ~109919 FIG. 1, the hulged P~ t (102) CO-~t~ the ontonn~ (110) that i8 couplet to the .ecci~. . (401) by the Atlte-mo co~tr~
ap~Lus (103). This antenna is shown in the cut-away por-tion of the hinged element (102).
S Illu6~ ted in FIG. 2 i6 a detailed view of the An~enno/
match ~L~ u~,l.u~e of the present .~chLon. The A~lt~ --o (110) is compnsed of a conductive loop with a CAl ~ I ve load pronded by a~ air gap (120). The input; l eA~ .ce of the Antann~ i~
matched usi~g a mPt hi--_ networlc ~nQ~ g of shunt and l 0 series capacitors. The shunt capat :l ~ oe is provided by an air gap (208) at the Ant~nn~'8 r~ e~ The serie~ capac~ oe is provided by two parallel plate capacitors (201 and 202) that also function as the cor.t~rtles~, rotating, co~ 6 apparatus (103) for the RF sig~al passed from the ~nt~n~a to the .ece;v~4 1 5 ap~atus loc~te~l in the main body of the radiotelephone.
As illu~l,.ated in FIG. 2, the ~n~nna coupling a~&a tus (103) is col..l .:~A oftwo sets of metal plates (201 and 202), each set fG ;~6 a capacitor. Ihe conductive plates (203 206) are COA~ 1Y l~roted ~ith one another, and S~OA~1A11Y IOCI~
2 0 with the center of rotation of the merhAnirAl hinge between the two portions of the radiotolep~one. One plate from each r~l~C- L.Or is cle~ lly co~n^cte~l to the balanced feed points of the An~nno structure and mPrh~nic~Ally Arr.~ l to the hinged portion (102) of the radiotolep~ nq. In the l"aÇel ~ed 2 5 e- 1~1; lent, the outer plates (205 and 206) of the two ca~a_;
tors are the ones connec~d to the feed po;nt~ The inner plate of each cAl-~- :to~ (203 and 204) i8 electncally connected to the input of the ~ec~ . and m^rl.=..irAlly ~ to the main body (101) of the radiotclep~one In an alternate emhoAi~ent~
3 0 the inner plates (203 and 204) are connec~d to the Ant~nno feed and the outer plate~ (205 and 206) are c~ .e~le l to the re-ceiver ~l~ut~.
In the ~.. ft:.~e.l eml G~ F t, the inner plates (203 and 204) are free to move in the direction parallel to the hinge a~s.
3 5 A sp~ing (207) i~ Affi~Pd to the iDner plates (203 and 204) via di-le~ ;c blocks (214 and 215). S~ LB3~ m^~.~t~ con-4 21~9919 ~tant spae~g between the plates of the eapa~to~ s (201 and 202), thus m9;--t~ 6 eonstant eapaeitrnee in spite of mP-rl~-ni^~l toleranees in the hinge ~^3~ ly. The metal plates (203 - 206) are ~a-ated by ~ie~¢~iC layers.
In the l,.efe-.ed e.. ~h~;~. nt. the ~ eetnc layers are eaeh e~ ;se~l of two indivitual slabs of liPlectrie (210 and 211, and 212 ant 213). In eaeh layer, one slab (210 and 212) i8 to the inner metal plate (204 and 203) and one slab (211 and 213) is ~ d to the outer metal plate (205 and 206). ~he 1 0 ~ e~ e slabs (210 - 213) define the plate 8r~~ and ~ ~t a~ ivn of the plates (203 - 206). In an alternate emho~ir-ent the ~i le~ie layers may eonsist of a ..~ 1 o, of ~ c~ ;e slabs other than two, or of an air gap ~t~ ~ the pl~tes.
rne spring (207) eould be deleted to fonn an alternate 1 5 ~ in whieh the inner plates (203 and 204) are not free to move laterally aloDg the hinge a~is. In this ease, the ~lic~l~ectric blocks (214 and 215) would form one solid block.
A 8rhem~ diagram of the equiv~lent circuit of the an-tenna/couple structure is illusL.at~.l in FIG. 3. The input 2 0 ~ æ of the ~n~nn~ is ~ e -.t~J by ;---~A~&--r~ Za (302). Ç~pac t~r(301)isthe shuntcapa~:to--re Ç~ tOl~
(303 and 304) provide the series capacitance and are the capac-itors of the rotating co~plin~ ap~ a~us.
~lthoueh the ~perific esample of a capacitively loaded 2 5 loop ~ntenn~ was used for illu~t,,,ti~,æ. purposes, the ~q..t~ ---o coupling ap~a.~us of the lJ. ee,.t i~ Lion may employ any &~b;h~ n~nn~ structure. Nor is the ~nt~nn~ coupling ap-lus limited to the use of the s;mp~e shunt-series capaci-tive m~trhing ~ o.L used for this e-A---l,lc The al.l,~tus 3 0 may u~e a generalized m atching ~two-~ with an ~I,il,.
nllmher of C~ G~lent6~ provided that one cc ~u ~ent is a ~eries r~p~ritqnce that can be re~li7~ as the parallel-plate capacitors that co~.;se the rotating cQ~plinE.
In t~e 1,.efeL.c1 emho~ p~ the ~--t~---.~ of the pre-3 5 sent ~ tion is cQnn~cte~ only to the ~ce;~er of the radio-- telephone. In alternate emho-l;---~--t~, the ~nt~nn~ can be ~6 -- ~2109919 c~ tç 1 to t_e tr~n~ ;llcl also to be used as both a ~ece;ve and tr~nQ~nit ~nt~nn~
In the preferred ~ .t~ the plates (203 - 206) are all t_e same size and circular in shape. This allow~ the hinge 5 to rotate without rhn ,~ 6 the capacitance of the co ~plina Alternate emhodiments of the ~nt~.n-.~ co~p~ &~.u8 could u~e ~ .~t sizes and Q~ es for the rQp~ tQr pl~tes, dependir.a on the series c~p~- :lc~ce .c~u-,ed. For çY~mple, the charact~ri~';cs of the ~t~h;~.6 ~t~ may need to 10 rh~e to ...~;..t^;.- ~ntçnn~ operability when a flip smt~nn~
is in the closed po~ition. In tbis case, plates without circular symmet2y could be u~ed to generate the n~c~3~r~ capac;t~
-~u8 rotation characteristic.
Another ~l~e, ~ ^te e ~k 1:~ lent of the present i~Lon 1 5 i8 illUbl~- ted in l?IG. 5. The plates in tis em~ t are t~l chc ~ fel. ~L:A11Y in the hinge. The two circular core plates (501 and 502) that are COI~ '1 to the input of the .cc~,e~ are ...o --t~ to the main body (101) while the two outer plates (503 and 504) that are connected to the ~nt~nno 2 0 (110) are ..~....te~ to the Lil4_d el~ ~ -t, (102). The hinged ~ m~nt, plates (503 and 504) have a larger ~c --fc . ~.lce than the main body phtes (501 and 502). This allows the main body plates (501 and 502) to rotate within the hinged elem-nt, plates (503 and 504). A ~iP-le~ic material is loc~tall between the 2 5 outer and inner plates to ~ t r--h~i~ contact. The volume inte~al to plate (503) but ~I~.,Ial to plate (501) forms capacitor (303) of FIG. 3 while the volume; ~ter-~Al to plate (504) and ~ sl to plate (502) forms capacitor (304).
I~e ~.efe.-lcd t...~ ..t, uses an ~nt4nn~ that re-3 0 quires a hAl~n~-l feed. Two RF connec~inn~, thel~role, must be made across the hinge and two parallel-plate ~pP~tors (201 and 202) are Lcquiled. An ~ltern~te ~ ho~ ^ t could utilize an ~lnhPlQn~ .t~ structure. In this case, only one RF c~nnectio-~ would be mate across the binge and only 3 5 one parallel-plate capacitor would be l~uilcd.

Claims (5)

Claims
1. An antenna coupling apparatus for a wireless communica-tion device comprised of a main body and a hinged element, the main body and the hinged element being coupled by a hinge, the main body having transceiving means and the hinged element having an antenna, the apparatus compris-ing:
a first and second plate located coaxially in the hinge and coupled to the transceiving means; and a third and fourth plate located coaxially in the hinge and coupled to the antenna, the third plate capacitively coupled to the first plate and separated from the first plate by a first dielectric material, the fourth plate capacitively coupled to the second plate and separated from the second plate by a second dielectric material.
2. The antenna coupling apparatus of claim 1 wherein the first, second, third, and fourth plates are circular and have substantially the same dimensions.
3. A radiotelephone for operating in a radiotelephone envi-ronment, the radiotelephone receiving radiotelephone signals with an antenna, the radiotelephone comprising:
receiving means for processing the received radiotele-phone signals;
a main body containing the receiving means;
a hinged section containing an antenna; and hinge means for coupling the hinged section to the main body, the hinge means comprising:
a first and second plate coupled to the receiving means;
a spring for maintaining a predetermined dis-tance between the first and second plates; and a third and fourth plate coupled to the antenna, the third plate capacitively coupled to the first plate and separated from the first plate by a first dielectric mate-rial, the fourth plate capacitively coupled to the second plate and separated from the second plate by a second dielectric material.
4. A rotating, contactless, coupling apparatus for a device comprised of a main body and a hinged element, the main body and the hinged element being coupled by a hinge, the main body having a first electrical apparatus and the hinged element having a second electrical apparatus the coupling apparatus comprising:
a first and second plate located in the hinge and coupled to the first electrical apparatus; and a third and fourth plate located in the hinge and coupled to the second electrical apparatus, the third plate capacitively coupled to the first plate and the fourth plate capacitively coupled to the second plate.
5. A rotating, contactless, coupling apparatus for a device comprised of a main body and a hinged element, the main body and the hinged element being coupled by a hinge, the main body having a first electrical apparatus and the hinged element having a second electrical apparatus, the coupling apparatus comprising:
a first and second plate located circumferentially in the hinge and coupled to the first electrical apparatus; and a third and fourth plate located circumferentially in the hinge and coupled to the second electrical apparatus, the third plate capacitively coupled to the first plate and the fourth plate capacitively coupled to the second plate, the third and fourth plates being located at a smaller circumference than the first and second plates thus allowing the third and fourth plates to rotate within the circumference of the first and second plates.
CA002109919A 1992-04-27 1993-01-28 Antenna coupling apparatus for a cordless telephone Expired - Lifetime CA2109919C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/873,850 US5170173A (en) 1992-04-27 1992-04-27 Antenna coupling apparatus for cordless telephone
US873,850 1992-04-27

Publications (1)

Publication Number Publication Date
CA2109919C true CA2109919C (en) 1996-07-23

Family

ID=25362453

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002109919A Expired - Lifetime CA2109919C (en) 1992-04-27 1993-01-28 Antenna coupling apparatus for a cordless telephone

Country Status (9)

Country Link
US (1) US5170173A (en)
JP (1) JPH06508019A (en)
CA (1) CA2109919C (en)
DE (2) DE4391937C2 (en)
FR (1) FR2691843B1 (en)
GB (1) GB2271887B (en)
IT (1) IT1262357B (en)
MX (1) MX9302411A (en)
WO (1) WO1993022803A1 (en)

Families Citing this family (125)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2794987B2 (en) * 1991-05-31 1998-09-10 日本電気株式会社 Portable wireless devices
JP3217408B2 (en) * 1991-11-21 2001-10-09 松下電工株式会社 Planar antenna
US5258892A (en) * 1992-01-22 1993-11-02 Motorola, Inc. Molded-in antenna with solderless interconnect
JPH0697713A (en) * 1992-07-28 1994-04-08 Mitsubishi Electric Corp Antenna
US7158031B2 (en) 1992-08-12 2007-01-02 Micron Technology, Inc. Thin, flexible, RFID label and system for use
US5826201A (en) * 1992-11-25 1998-10-20 Asterion, Inc. Antenna microwave shield for cellular telephone
US5465401A (en) * 1992-12-15 1995-11-07 Texas Instruments Incorporated Communication system and methods for enhanced information transfer
US5335366A (en) * 1993-02-01 1994-08-02 Daniels John J Radiation shielding apparatus for a radio transmitting device
SG64869A1 (en) * 1993-02-25 1999-05-25 Motorola Inc Receiver having concealed external antenna
US5666125A (en) * 1993-03-17 1997-09-09 Luxon; Norval N. Radiation shielding and range extending antenna assembly
US6594471B1 (en) * 1993-04-05 2003-07-15 Ambit Corp Radiative focal area antenna transmission coupling arrangement
US5711014A (en) * 1993-04-05 1998-01-20 Crowley; Robert J. Antenna transmission coupling arrangement
US6885845B1 (en) * 1993-04-05 2005-04-26 Ambit Corp. Personal communication device connectivity arrangement
EP0658280A4 (en) * 1993-05-03 1995-09-20 Motorola Inc Antenna for an electronic apparatus.
US5367309A (en) * 1993-07-09 1994-11-22 Richard Tashjian Cellular phone shield
US5404583A (en) * 1993-07-12 1995-04-04 Ball Corporation Portable communication system with concealing features
US5384844A (en) * 1993-07-30 1995-01-24 Ericsson Ge Mobile Communications, Inc. Pivotable housing for hand-held transceiver
GB2282028A (en) * 1993-08-26 1995-03-22 Betacom Plc Cordless telephone with loop antenna
IL108358A (en) 1993-09-14 1997-03-18 Loral Space Systems Inc Mobile communication terminal having extendable antenna
US5530919A (en) * 1993-10-12 1996-06-25 Murata Manufacturing Co., Ltd. Mobile communicator with means for attenuating transmitted output toward the user
KR0168503B1 (en) * 1993-11-08 1999-02-01 조나단 피. 메이어 Electronic device coupling apparatus
JPH07154840A (en) * 1993-11-26 1995-06-16 Casio Comput Co Ltd Radio receiver
CA2152860A1 (en) * 1994-07-15 1996-01-16 Argyrios A. Chatzipetros Antenna for communication device
US5524284A (en) * 1994-07-29 1996-06-04 The Antenna Company Antenna adapter for portable cellular telephone
US6095820A (en) * 1995-10-27 2000-08-01 Rangestar International Corporation Radiation shielding and range extending antenna assembly
TW280953B (en) * 1994-09-15 1996-07-11 Motorola Inc
US5561437A (en) * 1994-09-15 1996-10-01 Motorola, Inc. Two position fold-over dipole antenna
TW295733B (en) * 1994-09-15 1997-01-11 Motorola Inc
US5542106A (en) * 1994-09-15 1996-07-30 Motorola, Inc. Electronic device having an RF circuit integrated into a movable housing element
AU4502596A (en) * 1994-11-28 1996-06-19 Ericsson Inc. Portable telephone with an asymmetric hinged housing configuration
US5681176A (en) * 1994-12-05 1997-10-28 Nec Corporation Hinge connector suitable for use in a hinge portion included in an electronic device
JPH08289347A (en) * 1995-03-30 1996-11-01 Motorola Inc Device that couples antenna with wrist-portable selective call receiver
US5617106A (en) * 1995-04-20 1997-04-01 Sierra Wireless, Inc. Pivotable antenna and electrical device having a pivotable antenna
SG70987A1 (en) * 1995-05-09 2000-03-21 Motorola Inc Method and apparatus for routing conductors
TW268157B (en) * 1995-06-08 1996-01-11 Plantronics A combined antenna apparatus and method for receiving and transmitting radio frequency signals
US5652599A (en) * 1995-09-11 1997-07-29 Qualcomm Incorporated Dual-band antenna system
USD379982S (en) * 1995-11-16 1997-06-17 Motorola, Inc. Portable radiotelephone
IL116423A0 (en) * 1995-12-15 1996-03-31 Geotek Communication Inc A portable radio terminal having diversity reception antennas
US6490435B1 (en) 1996-01-16 2002-12-03 Ericsson Inc. Flip cover and antenna assembly for a portable phone
US6430400B1 (en) 1996-01-16 2002-08-06 Ericsson Inc. Detachable flip cover assembly for a portable phone
US5752204A (en) * 1996-04-01 1998-05-12 Telefonaktiebolaget L M Ericsson (Publ) Antenna assembly for radiotelephonic device
JPH09270728A (en) * 1996-04-01 1997-10-14 Nec Corp Portable radio equipment
US5812097A (en) * 1996-04-30 1998-09-22 Qualcomm Incorporated Dual band antenna
US6128490A (en) * 1997-05-08 2000-10-03 Nortel Networks Limited Wireless communication system that supports selection of operation from multiple frequency bands and multiple protocols and method of operation therefor
AU7296298A (en) * 1997-05-14 1998-12-08 Sony Electronics Inc. Antenna arrangement for portable two-way radio apparatus
US6980085B1 (en) 1997-08-18 2005-12-27 Micron Technology, Inc. Wireless communication devices and methods of forming and operating the same
US6339385B1 (en) 1997-08-20 2002-01-15 Micron Technology, Inc. Electronic communication devices, methods of forming electrical communication devices, and communication methods
US6011699A (en) * 1997-10-15 2000-01-04 Motorola, Inc. Electronic device including apparatus and method for routing flexible circuit conductors
US6352434B1 (en) 1997-10-15 2002-03-05 Motorola, Inc. High density flexible circuit element and communication device using same
US6002369A (en) * 1997-11-24 1999-12-14 Motorola, Inc. Microstrip antenna and method of forming same
US5945954A (en) * 1998-01-16 1999-08-31 Rangestar International Corporation Antenna assembly for telecommunication devices
US6133836A (en) * 1998-02-27 2000-10-17 Micron Technology, Inc. Wireless communication and identification packages, communication systems, methods of communicating, and methods of forming a communication device
FI112759B (en) * 1998-03-18 2003-12-31 Nokia Corp Phone Telescope
US6301468B1 (en) 1998-04-08 2001-10-09 Ericsson Inc. Electrical connector for a removable flip
US5995052A (en) * 1998-05-15 1999-11-30 Ericsson Inc. Flip open antenna for a communication device
CN1320305A (en) 1998-09-25 2001-10-31 艾利森公司 Mobile telephone having folding antenna
US6272324B1 (en) * 1998-09-28 2001-08-07 Ericsson Inc. Electrical connection for telephone with hinged cover
KR100345534B1 (en) * 1998-10-07 2002-10-25 삼성전자 주식회사 Antenna unit installed on the flip cover in flip-up phones
JP2000165124A (en) * 1998-11-18 2000-06-16 Telefon Ab Lm Ericsson Portable radio terminal, flip and hinge
CA2292194C (en) * 1998-12-22 2010-02-16 Eta Sa Fabriques D'ebauches Wristwatch with capacitive coupling
FI116029B (en) 1998-12-22 2005-08-31 Nokia Corp Design of the telescopic housing of an electrical appliance
DE69840071D1 (en) * 1998-12-22 2008-11-13 Eta Sa Mft Horlogere Suisse Wristwatch with capacitive coupling
US6615026B1 (en) 1999-02-01 2003-09-02 A. W. Technologies, Llc Portable telephone with directional transmission antenna
US6341217B1 (en) 1999-02-01 2002-01-22 A. W. Technologies, Llc Portable telephone with shielded transmission antenna
US6272356B1 (en) * 1999-05-10 2001-08-07 Ericsson Inc. Mechanical spring antenna and radiotelephones incorporating same
FR2803163B1 (en) * 1999-12-23 2004-10-15 Cit Alcatel PORTABLE RADIO COMMUNICATIONS TERMINAL
JP3669422B2 (en) * 2000-05-29 2005-07-06 日本電気株式会社 Folding mobile phone
JP4206612B2 (en) * 2000-06-07 2009-01-14 ソニー株式会社 Mobile phone
US6714136B1 (en) * 2000-08-14 2004-03-30 Computime, Ltd. Alarm clock with remote control function
KR100678232B1 (en) * 2000-12-30 2007-02-01 삼성전자주식회사 Built-in antenna device for folder type portable radiotelephone
JP2002290129A (en) * 2001-03-28 2002-10-04 Nec Access Technica Ltd Antenna device for portable radio terminal
US6515223B2 (en) * 2001-06-11 2003-02-04 Richard Tashjian Cellular shield
US6741215B2 (en) 2001-07-31 2004-05-25 Jerry Allen Grant Inverted safety antenna for personal communication devices
US6897825B2 (en) * 2001-10-29 2005-05-24 Samsung Electronics Co., Ltd. Antenna apparatus for folder type mobile phone
WO2003051022A1 (en) 2001-12-12 2003-06-19 Gary Ragner Audio extension for wireless communication devices
US20030129950A1 (en) * 2002-01-10 2003-07-10 Min-Woo Kwak Antenna of wireless phone
US6600450B1 (en) 2002-03-05 2003-07-29 Motorola, Inc. Balanced multi-band antenna system
US8060167B2 (en) * 2002-07-19 2011-11-15 Panasonic Corporation Portable wireless machine
EP2187475B1 (en) * 2002-07-19 2012-08-22 Panasonic Corporation Portable wireless machine
US6781551B2 (en) 2002-08-06 2004-08-24 Phonak Ag Hand-held transmitter and/or receiver unit
EP1388950A1 (en) * 2002-08-06 2004-02-11 Phonak Ag Handheld transceiver
TWI248700B (en) * 2003-07-04 2006-02-01 Hon Hai Prec Ind Co Ltd Film antenna and method for manufacturing the same
JP4685032B2 (en) * 2004-01-14 2011-05-18 ジェイ．エム．スタネック リミテッド ライアビリティ カンパニー Variable shape device
JP4661180B2 (en) * 2004-11-19 2011-03-30 日本電気株式会社 Portable wireless terminal and antenna current grounding method
JP3930015B2 (en) 2004-12-09 2007-06-13 松下電器産業株式会社 Antenna device for wireless device and portable wireless device including the same
FI20055420A0 (en) 2005-07-25 2005-07-25 Lk Products Oy Adjustable multi-band antenna
US7199762B2 (en) * 2005-08-24 2007-04-03 Motorola Inc. Wireless device with distributed load
KR100724116B1 (en) * 2005-08-24 2007-06-04 엘지전자 주식회사 Mobile communication terminal with interna antenna
FI119009B (en) 2005-10-03 2008-06-13 Pulse Finland Oy Multiple-band antenna
FI118782B (en) 2005-10-14 2008-03-14 Pulse Finland Oy Adjustable antenna
US8618990B2 (en) 2011-04-13 2013-12-31 Pulse Finland Oy Wideband antenna and methods
US20080026803A1 (en) * 2006-07-28 2008-01-31 Sony Ericsson Mobile Communications Ab Detachable Housings for a Wireless Communication Device
US20080100514A1 (en) * 2006-10-25 2008-05-01 Abdul-Gaffoor Mohammed R Antenna Arrangement for Hinged Wireless Communication Device
FI20075269A0 (en) 2007-04-19 2007-04-19 Pulse Finland Oy Method and arrangement for antenna matching
FI120427B (en) 2007-08-30 2009-10-15 Pulse Finland Oy Adjustable multiband antenna
US20090061966A1 (en) * 2007-09-05 2009-03-05 Motorola, Inc. Antenna and speaker assembly
JP5217406B2 (en) * 2007-12-12 2013-06-19 日本電気株式会社 Foldable mobile terminal
FI20096134A0 (en) 2009-11-03 2009-11-03 Pulse Finland Oy Adjustable antenna
FI20096251A0 (en) 2009-11-27 2009-11-27 Pulse Finland Oy MIMO antenna
US8847833B2 (en) 2009-12-29 2014-09-30 Pulse Finland Oy Loop resonator apparatus and methods for enhanced field control
FI20105158A (en) 2010-02-18 2011-08-19 Pulse Finland Oy SHELL RADIATOR ANTENNA
US9406998B2 (en) 2010-04-21 2016-08-02 Pulse Finland Oy Distributed multiband antenna and methods
US8611078B2 (en) * 2010-12-29 2013-12-17 Nokia Corporation Method and apparatus for displays
FI20115072A0 (en) 2011-01-25 2011-01-25 Pulse Finland Oy Multi-resonance antenna, antenna module and radio unit
US9673507B2 (en) 2011-02-11 2017-06-06 Pulse Finland Oy Chassis-excited antenna apparatus and methods
US8648752B2 (en) 2011-02-11 2014-02-11 Pulse Finland Oy Chassis-excited antenna apparatus and methods
US8866689B2 (en) 2011-07-07 2014-10-21 Pulse Finland Oy Multi-band antenna and methods for long term evolution wireless system
US9450291B2 (en) 2011-07-25 2016-09-20 Pulse Finland Oy Multiband slot loop antenna apparatus and methods
US9123990B2 (en) 2011-10-07 2015-09-01 Pulse Finland Oy Multi-feed antenna apparatus and methods
US9531058B2 (en) 2011-12-20 2016-12-27 Pulse Finland Oy Loosely-coupled radio antenna apparatus and methods
US9484619B2 (en) 2011-12-21 2016-11-01 Pulse Finland Oy Switchable diversity antenna apparatus and methods
US8988296B2 (en) 2012-04-04 2015-03-24 Pulse Finland Oy Compact polarized antenna and methods
US9979078B2 (en) 2012-10-25 2018-05-22 Pulse Finland Oy Modular cell antenna apparatus and methods
US10069209B2 (en) 2012-11-06 2018-09-04 Pulse Finland Oy Capacitively coupled antenna apparatus and methods
US9647338B2 (en) 2013-03-11 2017-05-09 Pulse Finland Oy Coupled antenna structure and methods
US10079428B2 (en) 2013-03-11 2018-09-18 Pulse Finland Oy Coupled antenna structure and methods
US9634383B2 (en) 2013-06-26 2017-04-25 Pulse Finland Oy Galvanically separated non-interacting antenna sector apparatus and methods
US9680212B2 (en) 2013-11-20 2017-06-13 Pulse Finland Oy Capacitive grounding methods and apparatus for mobile devices
US9590308B2 (en) 2013-12-03 2017-03-07 Pulse Electronics, Inc. Reduced surface area antenna apparatus and mobile communications devices incorporating the same
US9350081B2 (en) 2014-01-14 2016-05-24 Pulse Finland Oy Switchable multi-radiator high band antenna apparatus
US9948002B2 (en) 2014-08-26 2018-04-17 Pulse Finland Oy Antenna apparatus with an integrated proximity sensor and methods
US9973228B2 (en) 2014-08-26 2018-05-15 Pulse Finland Oy Antenna apparatus with an integrated proximity sensor and methods
US9722308B2 (en) 2014-08-28 2017-08-01 Pulse Finland Oy Low passive intermodulation distributed antenna system for multiple-input multiple-output systems and methods of use
US9525201B2 (en) 2014-10-27 2016-12-20 Nokia Technologies Oy Hinge that serves as a radiator
US9906260B2 (en) 2015-07-30 2018-02-27 Pulse Finland Oy Sensor-based closed loop antenna swapping apparatus and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315315A (en) * 1941-05-02 1943-03-30 Galvin Mfg Corp Radio apparatus
US4313119A (en) * 1980-04-18 1982-01-26 Motorola, Inc. Dual mode transceiver antenna
JPS5725704A (en) * 1980-07-23 1982-02-10 Mitsubishi Electric Corp Electric suppling device
US4644366A (en) * 1984-09-26 1987-02-17 Amitec, Inc. Miniature radio transceiver antenna
US5014346A (en) * 1988-01-04 1991-05-07 Motorola, Inc. Rotatable contactless antenna coupler and antenna
FI84536C (en) * 1989-05-22 1991-12-10 Nokia Mobira Oy RF connectors for connecting a radio telephone to an external antenna
JPH0334704A (en) * 1989-06-30 1991-02-14 Harada Ind Co Ltd Through-glass antenna for automobile radio
US5073761A (en) * 1990-06-05 1991-12-17 Westinghouse Electric Corp. Non-contacting radio frequency coupler connector

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DE4391937T1 (en) 1994-05-05
GB2271887A (en) 1994-04-27
GB9323333D0 (en) 1994-02-16
DE4391937C2 (en) 1996-07-18
WO1993022803A1 (en) 1993-11-11
ITRM930231A0 (en) 1993-04-09
FR2691843B1 (en) 1994-10-21
IT1262357B (en) 1996-06-19
ITRM930231A1 (en) 1994-10-09
FR2691843A1 (en) 1993-12-03
MX9302411A (en) 1993-10-01
GB2271887B (en) 1996-06-12
JPH06508019A (en) 1994-09-08
US5170173A (en) 1992-12-08

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