WO2000030207A1 - Dispositif terminal portatif a embase reflechissante - Google Patents
Dispositif terminal portatif a embase reflechissante Download PDFInfo
- Publication number
- WO2000030207A1 WO2000030207A1 PCT/JP1999/006249 JP9906249W WO0030207A1 WO 2000030207 A1 WO2000030207 A1 WO 2000030207A1 JP 9906249 W JP9906249 W JP 9906249W WO 0030207 A1 WO0030207 A1 WO 0030207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal device
- antenna
- portable terminal
- reflector
- rod
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- 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
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
Definitions
- the present invention relates to a mobile communication device, and more particularly to a mobile terminal device usable in a satellite system.
- a rod-shaped antenna is used in a portable terminal device for mobile communication.
- the rod-shaped antenna can be stored in a device housing.
- a rod-shaped four-wire type reciprocal antenna is often used (for example, Japanese Patent Laid-Open No. 10-135733).
- the 4-wire helical antenna shown in Fig. 1 has a radiating element consisting of four spiral conductors 71 wound around a dielectric cylinder 72, and the lower end of these radiating elements has a phase of 90 degrees.
- a power supply circuit 73 that can supply high-frequency power having the same amplitude is connected, and can transmit or receive circularly polarized radio waves.
- the structure shown in Fig. 2 is used.
- a cylinder 72 around which the spiral conductor is wound is covered with a radome 81 made of a dielectric material as a protection bar, and the radome 81 is fixed to a lower cover 82.
- a power supply circuit 73 connected to the spiral conductor is provided inside the cover 82, and a lower terminal of the power supply circuit 73 is connected to a radio unit of the terminal device via a rotary joint 8, and an antenna is provided. It is held up when used, and it can be held down when not in use.
- Fig. 3 shows an example of the radiation pattern in the elevation plane of the 4-wire type helicante. The radiation pattern is almost rotationally symmetric in the azimuth direction, giving a nearly uniform gain on the upper surface of the hemisphere.
- the above-mentioned helical antenna also includes an N-wire type helical antenna with N spiral conductors. Irradiation patterns similar to those shown in Fig. 3 regardless of the type or type of antenna. If a rod can be formed, other types of rod antennas can be used.
- the rod antenna for satellite communication having a radiation pattern as shown in Fig. 3 can be held up when using, i.e., during a call, and can be held down when not in use or on standby. If you wait while holding the antenna, the sensitivity to radio waves coming from the sky will be significantly degraded, and it will be difficult to receive radio waves indicating a call from the satellite. It will need to be held upward.
- a mobile terminal device if only a call from the other party can be recognized during standby, the direction of the antenna is adjusted and a call is received when a call is received.
- the probability of recognizing calls is greatly improved.
- One of the objects of the present invention is to improve the reception situation when a radio wave arriving from the sky is received by a rod-shaped antenna held downward, so that the satellite-received rod-shaped antenna is housed downward during standby.
- An object is to provide a portable terminal device that can be held.
- the portable terminal device of the present invention has a reflector facing the antenna below the rod-shaped antenna held downward when stored.
- the rod-shaped antenna may be a satellite communication antenna having directivity for uniformly radiating radio waves on the upper surface of the hemisphere.
- the reflector may protrude horizontally from the housing of the mobile terminal device and below the antenna.
- the shape of the reflector viewed from above may be rectangular or semicircular.
- the reflecting surface of the reflecting plate may be made of a conductor.
- the reflection surface of the reflection plate may be configured by arranging a linear conductor on the surface of the dielectric.
- the size of the anti-slope surface of the reflection plate may be a piece or a diameter of 0.1 times the wavelength used.
- FIG. 1 is an explanatory diagram of a 4-wire helical antenna.
- FIG. 2 is a cross-sectional view showing the structure of a four-wire spiral antenna.
- FIG. 3 is a diagram showing an example of a directivity pattern of a 4-wire type spiral antenna.
- FIG. 4 is a perspective view showing an example of the embodiment of the portable terminal device of the present invention.
- FIG. 5 is a side view of the portable terminal device shown in FIG. 1, showing a state in which a satellite communication antenna is housed in a housing facing downward.
- FIG. 6 is a side view of the portable terminal device shown in FIG. 1, showing a state in which the satellite communication antenna is taken out of the housing and held upward.
- FIG. 7 is an explanatory diagram showing that a radio wave from a satellite is reflected by a reflector and is incident on an antenna held downward.
- FIG. 8 is a perspective view showing an outline of the shape of the reflector.
- FIG. 9 is a perspective view of a reflection plate in which a reflection conductor is arranged on a reflection surface of the reflection plate.
- FIG. 4 is a perspective view showing an example of the embodiment of the present invention.
- the mobile terminal shown in Fig. 4 has both terrestrial and satellite antennas.
- the housing 1 has a display panel 2, operation buttons 3, speakers 4, a microphone 5, a terrestrial communication antenna 6 for intercepting using terrestrial radio waves, and a satellite communication for communicating using satellite radio waves.
- An antenna 7, a rotary joint 8 and a reflector 9 are provided so that the satellite communication antenna 7 can be held in the elevation and downward directions while being connected to the radio section of the portable terminal device. .
- FIG. 5 is a side view of the portable terminal device whose perspective view is shown in FIG.
- the satellite communication antenna 7 is housed in the housing.
- the satellite communication antenna is held downward and stored as shown in Fig. 5.
- FIG. 3 is a meta diagram when the radio waves are taken out upward so that they can be received with high sensitivity.
- a reflector 9 is mounted so as to protrude horizontally from the lower part of the housing 1, and the reflection plate 9 is used when the satellite interception antenna 7 is held downward. Face the antenna. At this time, the radio wave from the satellite is reflected toward the antenna as shown in Fig. 7, so that it becomes easier to receive.
- the satellite Shinshingawa antenna 7 has a radiation pattern as shown in Fig. 3, and it is ideal to use the antenna with its tip directed toward the zenith. Then, in the stowed state where the antenna is held with the downward force I ′′, the beam of the antenna is directed downward, and it is difficult to receive the microwave from the satellite S.
- the radio wave radiated from the antenna 7 whose tip is downward is reflected by the reflector 9 and radiated upward, and the radio wave from the satellite is reflected by the reflector. It is reflected by 9 and received by antenna 7 pointing downwards.
- the effect of the reflecting plate is very large also in terms of Antena noise temperature, c that is, the noise temperature of the antenna during reception standby in satellite communications, but is better low, an antenna 7 having directivity as shown in FIG. 3 When facing the ground (downward), the antenna 7 directly picks up the thermal noise of the ground, and the noise temperature is extremely deteriorated. However, due to the presence of the reflector 9, thermal noise from the ground is considerably blocked, so that the noise temperature of the antenna 7 is not degraded.
- FIG. 8 shows an outline of the shape of the reflector 9.
- (A) is rectangular and (b) is semicircular. Since the reflecting plate 9 has the purpose of reflecting radio waves, it is necessary that the force composed of a conductor or at least the reflecting surface 10 be a conductor. In either case, the effect is greater as the area of the reflecting surface 10 is larger. However, it is effective if the diameter or one side of the semi-circular or rectangular reflector 9 is about 0.1 wavelength or more (about 2 cm at 1.6 G I Iz).
- the reflecting conductor 11 may be arranged on the surface of the dielectric as shown in FIG.
- a a plurality of conductors 11 having a fixed width are provided only in the horizontal direction, and there is an effect of reflecting only an electric field component parallel to the conductor 11.
- b) and (c) are the cases where the vertical conductor 11 and the grid-like conductor 11 are provided.
- the terminal device having the saucer-shaped small reflector provided so as to face the antenna, which is stored and held downward and is held below, in a state where the rod-shaped antenna is stored. Since it is possible to wait for calls from satellites, it becomes extremely easy to wait while moving. Such effects are not limited to satellites, and are the same when waiting for radio waves from the sky.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/856,056 US6947762B1 (en) | 1998-11-17 | 1999-11-10 | Portable terminal device with reflection board |
AU11768/00A AU1176800A (en) | 1998-11-17 | 1999-11-10 | Portable terminal device having reflection board |
EP99972377A EP1143555B1 (en) | 1998-11-17 | 1999-11-10 | Portable terminal device having reflection board |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/326838 | 1998-11-17 | ||
JP32683898A JP3180784B2 (ja) | 1998-11-17 | 1998-11-17 | 反射板を有する携帯端末装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000030207A1 true WO2000030207A1 (fr) | 2000-05-25 |
Family
ID=18192286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/006249 WO2000030207A1 (fr) | 1998-11-17 | 1999-11-10 | Dispositif terminal portatif a embase reflechissante |
Country Status (5)
Country | Link |
---|---|
US (1) | US6947762B1 (ja) |
EP (1) | EP1143555B1 (ja) |
JP (1) | JP3180784B2 (ja) |
AU (1) | AU1176800A (ja) |
WO (1) | WO2000030207A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002222480A1 (en) * | 2000-12-14 | 2002-06-24 | Xellant Inc. | Cavity antenna with reactive surface loading |
US7646346B2 (en) * | 2006-11-10 | 2010-01-12 | Sony Ericsson Mobile Communications Ab | Antenna for a pen-shaped mobile phone |
US9286481B2 (en) * | 2007-01-18 | 2016-03-15 | Honeywell International Inc. | System and method for secure and distributed physical access control using smart cards |
US7646347B2 (en) | 2007-01-26 | 2010-01-12 | Sony Ericsson Mobile Communications Ab | Antenna for a pen-shaped mobile phone |
JP2009074806A (ja) * | 2007-09-18 | 2009-04-09 | Panasonic Electric Works Co Ltd | データ収集装置 |
US20090102733A1 (en) * | 2007-10-17 | 2009-04-23 | Motorola, Inc. | Antenna system and method for controlling an antenna pattern of a communication device |
WO2015141133A1 (ja) | 2014-03-20 | 2015-09-24 | パナソニックIpマネジメント株式会社 | 携帯通信端末および筐体カバー |
KR20200085071A (ko) | 2019-01-04 | 2020-07-14 | 주식회사 엘지화학 | 배터리 전류 측정 장치 및 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6454407A (en) * | 1987-08-25 | 1989-03-01 | Tokyo Metropolitan Gov | Optical axis setter for autocollimator |
JPH08293719A (ja) * | 1995-04-21 | 1996-11-05 | Hitachi Ltd | 通信装置 |
JPH0918227A (ja) * | 1995-06-29 | 1997-01-17 | Hitachi Ltd | 無線装置 |
JPH09284022A (ja) * | 1996-04-16 | 1997-10-31 | Kyocera Corp | 携帯無線機 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2919024B2 (ja) * | 1989-08-29 | 1999-07-12 | 日本電気株式会社 | 携帯無線機用アンテナ |
JPH0814371B2 (ja) * | 1990-07-25 | 1996-02-14 | 興栄工業株式会社 | 喫煙用ガスライターの炎長調整装置 |
US5757326A (en) * | 1993-03-29 | 1998-05-26 | Seiko Epson Corporation | Slot antenna device and wireless apparatus employing the antenna device |
US5559522A (en) | 1994-07-25 | 1996-09-24 | Motorola, Inc. | Antenna positioning apparatus capable of substantially vertical orientation |
JP3122017B2 (ja) | 1995-10-11 | 2001-01-09 | 京セラ株式会社 | 複合アンテナ装置 |
SE508694C2 (sv) * | 1996-02-02 | 1998-10-26 | Ericsson Telefon Ab L M | Anordning och förfarande i ett telesystem |
US6459916B1 (en) * | 1996-04-16 | 2002-10-01 | Kyocera Corporation | Portable radio communication device |
JP3297601B2 (ja) | 1996-04-25 | 2002-07-02 | 京セラ株式会社 | 複合アンテナ |
DE59707197D1 (de) * | 1996-07-29 | 2002-06-13 | Koninkl Philips Electronics Nv | Gerät zum Empfangen und/oder Senden einer elektromagnetischen Schwingung |
JP3441316B2 (ja) * | 1996-10-31 | 2003-09-02 | 京セラ株式会社 | 共用アンテナ装置 |
US6025816A (en) * | 1996-12-24 | 2000-02-15 | Ericsson Inc. | Antenna system for dual mode satellite/cellular portable phone |
JP3138652B2 (ja) | 1997-02-06 | 2001-02-26 | 株式会社次世代衛星通信・放送システム研究所 | ハンドヘルド型携帯電話機 |
-
1998
- 1998-11-17 JP JP32683898A patent/JP3180784B2/ja not_active Expired - Fee Related
-
1999
- 1999-11-10 EP EP99972377A patent/EP1143555B1/en not_active Expired - Lifetime
- 1999-11-10 US US09/856,056 patent/US6947762B1/en not_active Expired - Fee Related
- 1999-11-10 AU AU11768/00A patent/AU1176800A/en not_active Abandoned
- 1999-11-10 WO PCT/JP1999/006249 patent/WO2000030207A1/ja active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6454407A (en) * | 1987-08-25 | 1989-03-01 | Tokyo Metropolitan Gov | Optical axis setter for autocollimator |
JPH08293719A (ja) * | 1995-04-21 | 1996-11-05 | Hitachi Ltd | 通信装置 |
JPH0918227A (ja) * | 1995-06-29 | 1997-01-17 | Hitachi Ltd | 無線装置 |
JPH09284022A (ja) * | 1996-04-16 | 1997-10-31 | Kyocera Corp | 携帯無線機 |
Non-Patent Citations (2)
Title |
---|
See also references of EP1143555A4 * |
The Institute of Electronics, Information and Communication Engineers, "Examination of the noise degree of hilical antennas connected to satellite portable terminals (in Japanese)", Lecture Proceedings distributed at the general national meeting in 1998, organized by IEICE, (1998), Tsushin 1, (Japan), IEICE, (27-03-96), * |
Also Published As
Publication number | Publication date |
---|---|
EP1143555B1 (en) | 2006-02-22 |
EP1143555A4 (en) | 2004-11-24 |
US6947762B1 (en) | 2005-09-20 |
JP3180784B2 (ja) | 2001-06-25 |
JP2000151264A (ja) | 2000-05-30 |
AU1176800A (en) | 2000-06-05 |
EP1143555A1 (en) | 2001-10-10 |
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