WO2008057684B1 - Low profile internal antenna - Google Patents

Low profile internal antenna

Info

Publication number
WO2008057684B1
WO2008057684B1 PCT/US2007/080419 US2007080419W WO2008057684B1 WO 2008057684 B1 WO2008057684 B1 WO 2008057684B1 US 2007080419 W US2007080419 W US 2007080419W WO 2008057684 B1 WO2008057684 B1 WO 2008057684B1
Authority
WO
WIPO (PCT)
Prior art keywords
low
original
folded inverted
antenna assembly
antenna
Prior art date
Application number
PCT/US2007/080419
Other languages
French (fr)
Other versions
WO2008057684A2 (en
WO2008057684A3 (en
Inventor
Carlo Dinallo
Antonio Feraone
Original Assignee
Motorola Inc
Carlo Dinallo
Antonio Feraone
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, Carlo Dinallo, Antonio Feraone filed Critical Motorola Inc
Publication of WO2008057684A2 publication Critical patent/WO2008057684A2/en
Publication of WO2008057684A3 publication Critical patent/WO2008057684A3/en
Publication of WO2008057684B1 publication Critical patent/WO2008057684B1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)

Abstract

A multi-band folded inverted conformal antenna (101), suitable for use internally within an electronic device (501), facilitates low-profile designs with the multi-band folded inverted conformal antenna (601) extending less than five millimeters above a circuit substrate (102) in some embodiments. The multi-band folded inverted conformal antenna (601) includes planar sections and a slot (407), and is capable of multi-mode operation. For example, one embodiment is configured to operate in a first common mode (401), a differential mode (402), and a second common mode (403), thereby allowing the multi-band folded inverted conformal antenna (601) to operate in a first operational bandwidth, second operational bandwidth, and third operational bandwidth. Portions of the ground plane conductor (103) passing beneath the multi-band folded inverted conformal antenna (101) are selectively removed at areas corresponding to concentrations of electrical charge, thereby allowing a more low-profile design.

Claims

AMENDED CLAIMS received by the International Bureau on 09 May 2008 (09.05.2008)
1. (Original) A low-profile antenna assembly, comprising: a multiband folded inverted conformal antenna element; and a circuit substrate coupled to the muJtjband folded inverted conformal antenna element, the circuit substrate comprising a ground plane structure; wherein the ground plane structure comprises one υr more ground plane voids disposed at locations corresponding to electric charge concentrations associated with the multiband folded inverted conibπnal antenna.
2. (Original) The low-profile antenna assembly of claim 1, wherein the mulliband folded inverted conformal antenna element comprises a planar portion separated from (he circuit substrate by an antenna height, wherein the antenna height is less than live millimeters.
3. (Original) The low-profile antenna assembly of claim I , wherein the circuit substrate comprises a printed circuit board having a distal end comprising one or more comer regions, wherein the multiband folded inverted eυnformal antenna element is disposed at the distal end.
4. (Original) The low-profile antenna assembly of claim 3, wherein the one or more ground plane voids are dispo.sed at least at the one or more corner regions.
5. (Original) The low-profile antenna assembly of claim 3, wherein the one or more ground plane voids are disposed along an edge of the printed circuit board.
6. (Original) The low-profile antenna assembly of claim 4, wherein the circuit substrate comprises a circuit substrate width, wherein a comer region width of the one or more comer regions is less than twenty- five percent of the circuit substrate width.
7. (Original) The low-profile antenna assembly of claim 3, wherein the ground plane conductor at the distal end comprises a T-shaped cross-section.
8. (Original) The low-profile antenna assembly of claim 1, wherein the multiband folded inverted conformal antenna clement is configured to operate in at least a first common mode, a differential mode, and a second common mode. 16
9. (Original) The low-profile antenna assembly of claim 1, wherein the mulliband folded inverted confoπnal antenna element produces a tri-modc electromagnetic response having at least a first operational bandwidth, a second operational bandwidth, and a third operational bandwidth.
10. (Original) The low-profile antenna assembly of claim 9, wherein an electric charge associated with the multiband folded inverted conformal antenna when operating in one of the first operational bandwidth, the second operational bandwidth, or the third operational bandwidth is maximized at locations corresponding to the one or more ground plane voids.
11. (Original) The low-profile antenna assembly of claim 1 , further comprising a transceiver circuit coupled to lhe multiband folded inverted confoπnal antenna, wherein die transceiver circuit is capacitively coupled to the multiband folded inverted confoπnal antenna.
12. (Original) The low-profile antenna assembly of claim 1, wherein the mulliband folded inverted conformal antenna element comprises at least one side portion extending distally from the circuit substrate, further wherein the multiband folded inverted confoπnal antenna element comprises at least one slot.
13. (Original) The low-profile antenna assembly of claim 12, wherein at least a portion of the slot passes along the at least one side portion.
14. (Original) The low-profile antenna assembly of claim 12, wherein the multiband folded inverted conformal antenna further comprises a planar portion extending from the at least one side portion such that the planar portion is substantially parallel with the circuit substrate, wherein the planar portion is substantially U-shapcd.
15. (Original) The low-profile antenna assembly of claim 1 , wherein the multiband folded inverted conformal antenna clement comprises a conductor having at least a first face, a second face, and a third face, wherein the second face couples the first face to the third face, wherein transitions from the first face to the second face and from the second face to the third face occur above tbc one or more ground plane voids. 17
16. (Cancelled)
17. (Cancelled)
18. (Cancelled)
19. (Cancelled)
20. (Cancelled)
PCT/US2007/080419 2006-10-27 2007-10-04 Low profile internal antenna WO2008057684A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/553,845 US7642964B2 (en) 2006-10-27 2006-10-27 Low profile internal antenna
US11/553,845 2006-10-27

Publications (3)

Publication Number Publication Date
WO2008057684A2 WO2008057684A2 (en) 2008-05-15
WO2008057684A3 WO2008057684A3 (en) 2008-07-10
WO2008057684B1 true WO2008057684B1 (en) 2008-08-21

Family

ID=39329486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/080419 WO2008057684A2 (en) 2006-10-27 2007-10-04 Low profile internal antenna

Country Status (2)

Country Link
US (1) US7642964B2 (en)
WO (1) WO2008057684A2 (en)

Families Citing this family (12)

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US8193993B2 (en) * 2006-11-20 2012-06-05 Motorola Mobility, Inc. Antenna sub-assembly for electronic device
JP2011041097A (en) * 2009-08-14 2011-02-24 Fujitsu Component Ltd Antenna apparatus
TWI431849B (en) * 2009-11-24 2014-03-21 Ind Tech Res Inst Mobile communication device
US8587481B2 (en) 2010-08-09 2013-11-19 Blackberry Limited Mobile wireless device with enlarged width portion multi-band loop antenna and related methods
US8698674B2 (en) 2010-08-09 2014-04-15 Blackberry Limited Mobile wireless device with multi-band loop antenna and related methods
US9300033B2 (en) 2011-10-21 2016-03-29 Futurewei Technologies, Inc. Wireless communication device with an antenna adjacent to an edge of the device
US9893429B2 (en) * 2013-03-11 2018-02-13 Futurewei Technologies, Inc. Wideband slot antenna for wireless communication devices
FR3013904B1 (en) * 2013-11-28 2015-12-04 Commissariat Energie Atomique ELECTRONIC APPARATUS WITH RADIO ANTENNA FOLDED IN A CASE
CN204103033U (en) 2014-08-07 2015-01-14 比亚迪股份有限公司 Aerial radiation sheet, antenna and mobile terminal
CN111699592B (en) * 2018-02-27 2023-01-20 康普技术有限责任公司 Antenna module, antenna unit, distributed antenna system and method for operating an antenna module
IL269198B (en) * 2019-09-09 2022-01-01 Goodtechcom Ltd System and method for translocating and buffering cellular radiation source
CN115101924A (en) * 2019-10-31 2022-09-23 华为终端有限公司 Antenna device and electronic apparatus

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US4862181A (en) 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
JP2806525B2 (en) 1988-03-04 1998-09-30 日本電気株式会社 Receiver with display function
US5300937A (en) 1989-10-02 1994-04-05 Motorola, Inc. Loop antenna
US5757326A (en) 1993-03-29 1998-05-26 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
JP3114621B2 (en) * 1996-06-19 2000-12-04 株式会社村田製作所 Surface mount antenna and communication device using the same
JP3449484B2 (en) 1997-12-01 2003-09-22 株式会社東芝 Multi-frequency antenna
JP3246440B2 (en) * 1998-04-28 2002-01-15 株式会社村田製作所 Antenna device and communication device using the same
US6762763B1 (en) 1999-07-01 2004-07-13 Microsoft Corporation Computer system having a distributed texture memory architecture
JP4510244B2 (en) 2000-07-19 2010-07-21 パナソニック株式会社 Antenna device
JP3931866B2 (en) * 2002-10-23 2007-06-20 株式会社村田製作所 Surface mount antenna, antenna device and communication device using the same
US6762723B2 (en) 2002-11-08 2004-07-13 Motorola, Inc. Wireless communication device having multiband antenna
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JP3739740B2 (en) * 2002-11-28 2006-01-25 京セラ株式会社 Surface mount antenna and antenna device
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Also Published As

Publication number Publication date
WO2008057684A2 (en) 2008-05-15
US7642964B2 (en) 2010-01-05
WO2008057684A3 (en) 2008-07-10
US20080100516A1 (en) 2008-05-01

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