JP2822766B2 - Portable wireless telephone - Google Patents
Portable wireless telephoneInfo
- Publication number
- JP2822766B2 JP2822766B2 JP4114336A JP11433692A JP2822766B2 JP 2822766 B2 JP2822766 B2 JP 2822766B2 JP 4114336 A JP4114336 A JP 4114336A JP 11433692 A JP11433692 A JP 11433692A JP 2822766 B2 JP2822766 B2 JP 2822766B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- coaxial connector
- external
- receiving
- circuit
- 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
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は携帯無線電話機に関し、
特にダイバーシティー受信方式の携帯無線電話機に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable radio telephone,
In particular, the present invention relates to a diversity reception type portable radio telephone.
【０００２】[0002]
【従来の技術】従来、この種の携帯無線電話機は、送受
共用の収納可能アンテナと、受信専用の内蔵アンテナと
を有し、内蔵アンテナとしては逆Ｆアンテナが多く採用
されており、板金等にて構成されている。また従来の携
帯無線電話機は、受信中、２系統の受信回路に電流が供
給される構成となっている。2. Description of the Related Art Conventionally, this kind of portable radio telephone has a stowable antenna for both transmission and reception, and a built-in antenna for reception only. Inverted-F antennas are often used as built-in antennas. It is configured. In addition, the conventional portable radio telephone has a configuration in which current is supplied to two systems of reception circuits during reception.
【０００３】[0003]
【発明が解決しようとする課題】この従来の携帯無線電
話機は、受信専用アンテナが内蔵アンテナとなってお
り、特に逆Ｆアンテナが採用されているので、アンテナ
ゲイン確保の為に面積及び体積が必要となり、筺体内の
部品実装等が非常に難しいという問題点がある。また、
内蔵アンテナに周囲部品が与える影響も大きく、十分ア
ンテナとしての性能を引き出すのも困難となっていると
いう問題点がある。更に、小形が進むにつれて、ダイバ
ーシティーの相関も高くなると予想され、受信中は２系
統の受信回路に電源供給しなくてはならず、そのために
消費電流が大きいという問題点がある。The conventional portable radio telephone has a built-in receiving-only antenna, and particularly employs an inverted-F antenna, so that an area and a volume are required to secure an antenna gain. Therefore, there is a problem that it is very difficult to mount components inside the housing. Also,
There is a problem in that peripheral components greatly affect the built-in antenna, and it is difficult to sufficiently bring out the performance as an antenna. Further, as miniaturization progresses, the correlation of diversity is expected to increase, and during reception, power must be supplied to two systems of receiving circuits, which causes a problem that current consumption is large.
【０００４】[0004]
【課題を解決するための手段】本発明の携帯無線電話機
は、筺体内に収納可能な送受共用アンテナと、検波後選
択のダイバーシティー受信機能の第１，第２の受信回路
と、前記送受共用アンテナと２系統の第１，第２の外部
アンテナとの接続をスイッチングするスイッチ機能付同
軸コネクタとを有し、前記第１，第２の外部アンテナを
前記同軸コネクタに接続しない時には、前記同軸コネク
タ内のスイッチにより送受共用器に接続される前記第１
の受信回路が前記送受共用アンテナ接続されて前記第２
の受信回路には前記第２の外部アンテナに接続されず、
また前記第１，第２の外部アンテナをそれぞれ前記同軸
コネクタに接続した時には、前記第１，第２の受信回路
それぞれに前記同軸コネクタを介して前記第１，第２の
外部アンテナが接続されてダイバーシティー受信状態と
なり、また、前記第１，第２の外部アンテナが前記同軸
コネクタに接続されない時には、前記第２の受信回路の
電源をオフとし、接続された時には、前記電源をオンと
する前記同軸コネクタのスイッチに連動したスイッチン
グ回路を有している。SUMMARY OF THE INVENTION A portable radio telephone according to the present invention comprises a transmitting / receiving antenna which can be housed in a housing, first and second receiving circuits having a diversity receiving function selected after detection, and A coaxial connector with a switch function for switching connection between an antenna and two systems of first and second external antennas, wherein the coaxial connector is used when the first and second external antennas are not connected to the coaxial connector. The first connected to the duplexer by a switch in the
Receiving circuit is connected to the transmission / reception shared antenna and the second
Is not connected to the second external antenna,
When the first and second external antennas are connected to the coaxial connector, the first and second external antennas are connected to the first and second receiving circuits via the coaxial connector. The diversity receiving state is set, and when the first and second external antennas are not connected to the coaxial connector, the power of the second receiving circuit is turned off, and when connected, the power is turned on. It has a switching circuit linked to the switch of the coaxial connector.
【０００５】[0005]
【実施例】次に、本発明について図面を参照して説明す
る。Next, the present invention will be described with reference to the drawings.
【０００６】図１は本発明の一実施例を示すブロック図
である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【０００７】図１において本実施例の携帯無線電話機１
は筺体内に収納可能な送受共用のホイップアンテナ２
と、受信専用の外部アンテナ３−１，３−２と、外部ア
ンテナ３−１，３−２が接続するかしないかによって切
換わるスイッチ機能付の同軸コネクタ４−１，４−２
と、同軸コネクタ４−１に外部アンテナ３−１を接続す
ると同軸コネクタ４−１を介して外部アンテナ３−１に
接続し、同軸コネクタ４−１に外部アンテナ３−１を接
続しないと同軸コネクタ４−１を介してホイップアンテ
ナ２に接続する送受共用器５と、送受共用器５に接続す
る受信回路６及び送信回路１０と、同軸コネクタ４−２
に接続する受信回路７と、同軸コネクタ４−１，４−２
に外部アンテナ３−１，３−２が接続されたときのみ受
信回路７へ電力を供給すべく切換わる電源切換スイッチ
（ＳＷ）１１と、受信回路６又は７からの出力をＡＦ回
路９へ切換えるブランチ切換スイッチ８とを有して構成
している。In FIG. 1, a portable radio telephone 1 according to the present embodiment is shown.
Is a shared whip antenna 2 that can be stored in the housing
Coaxial connectors 4-1 and 4-2 with a switch function for switching between external antennas 3-1 and 3-2 dedicated to reception and external antennas 3-1 and 3-2.
When the external antenna 3-1 is connected to the coaxial connector 4-1, it is connected to the external antenna 3-1 via the coaxial connector 4-1, and when the external antenna 3-1 is not connected to the coaxial connector 4-1. 4-1, a duplexer 5 connected to the whip antenna 2, a receiving circuit 6 and a transmitter 10 connected to the duplexer 5, a coaxial connector 4-2.
And a coaxial connector 4-1, 4-2.
And a power supply switch (SW) 11 that switches to supply power to the receiving circuit 7 only when the external antennas 3-1 and 3-2 are connected to the external antennas 3-1 and 3-2, and switches an output from the receiving circuit 6 or 7 to the AF circuit 9. And a branch changeover switch 8.
【０００８】次に、本実施例の動作について説明する。Next, the operation of this embodiment will be described.
【０００９】外部アンテナ３−１，３−２が同軸コネク
タ４−１，４−２に接続されないときには、同軸コネク
タ４−１，４−２のスイッチはａ側に接し、受信回路６
は送受共用器５を経由してホイップアンテナ２に接続さ
れ、受信回路７には何も接続されずオープン状態とな
る。このときＳＷ１１はオフとなり、受信回路７には電
源は供給されない。When the external antennas 3-1 and 3-2 are not connected to the coaxial connectors 4-1 and 4-2, the switches of the coaxial connectors 4-1 and 4-2 are in contact with the a side and the receiving circuit 6 is connected.
Is connected to the whip antenna 2 via the duplexer 5 and is not connected to the receiving circuit 7 to be in an open state. At this time, SW11 is turned off, and power is not supplied to the receiving circuit 7.
【００１０】外部アンテナ３−１，３−２が同軸コネク
タ４−１，４−２に接続されると、同軸コネクタ４−
１，４−２のスイッチはｂ側に接し、受信回路６は外部
アンテナ３−１に、受信回路７は外部アンテナ３−２に
接続される。このときＳＷ１１はオン状態となり、受信
回路７に電源が供給される。When the external antennas 3-1, 3-2 are connected to the coaxial connectors 4-1, 4-2, the coaxial connectors 4-1, 4-2 are connected.
The switches 1 and 4-2 are connected to the side b, the receiving circuit 6 is connected to the external antenna 3-1, and the receiving circuit 7 is connected to the external antenna 3-2. At this time, the SW 11 is turned on, and power is supplied to the receiving circuit 7.
【００１１】外部アンテナ３−１，３−２としては車載
アンテナや、携帯用アンテナ等がある。The external antennas 3-1 and 3-2 include a vehicle-mounted antenna and a portable antenna.
【００１２】[0012]
【発明の効果】以上説明したように本発明は、受信回路
２系統有しているにもかかわらず、従来の内蔵アンテナ
をなくすことにより、装置本体の実装効率を上げること
ができ、また、外部アンテナを同軸コネクタに接続して
いないときは送受共用器に接続しない受信回路に電源が
供給されないので、待受時の電力を節減することがで
き、さらに車載時等フェージングが大きいときは外部ア
ンテナを接続することによりダイバーシティー受信状態
となって受信性能を上げることができる効果がある。As described above, according to the present invention, although there are two receiving circuits, the mounting efficiency of the device main body can be improved by eliminating the conventional built-in antenna, and the external When the antenna is not connected to the coaxial connector, power is not supplied to the receiving circuit that is not connected to the duplexer, so that power during standby can be saved. By connecting, it is possible to increase the reception performance by entering the diversity reception state.
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
１ 携帯無線電話機 ２ ホイップアンテナ ３−１，３−２ 外部アンテナ ４−１，４−２ 同軸コネクタ ５ 送受共用器 ６ 受信回路 ７ 受信回路 ８ ブランチ切換スイッチ ９ ＡＦ回路 １０ 送信回路 １１ 電源切換スイッチ（ＳＷ） DESCRIPTION OF SYMBOLS 1 Mobile radiotelephone 2 Whip antenna 3-1 and 3-2 External antenna 4-1 and 4-2 Coaxial connector 5 Transmission / reception duplexer 6 Receiving circuit 7 Receiving circuit 8 Branch changeover switch 9 AF circuit 10 Transmission circuit 11 Power supply changeover switch ( SW)
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H04B 7/24 - 7/26 H04Q 7/00 - 7/38 H04B 7/00 H04B 7/02 - 7/12 H04L 1/02 - 1/04──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H04B 7/24-7/26 H04Q 7/00-7/38 H04B 7/00 H04B 7/02-7 / 12 H04L 1/02-1/04
Claims (1)
と、検波後選択のダイバーシティー受信機能の第１，第
２の受信回路と、前記送受共用アンテナと２系統の第
１，第２の外部アンテナとの接続をスイッチングするス
イッチ機能付同軸コネクタとを有し、前記第１，第２の
外部アンテナを前記同軸コネクタに接続しない時には、
前記同軸コネクタ内のスイッチにより送受共用器に接続
される前記第１の受信回路が前記送受共用アンテナ接続
されて前記第２の受信回路には前記第２の外部アンテナ
に接続されず、また前記第１，第２の外部アンテナをそ
れぞれ前記同軸コネクタに接続した時には、前記第１，
第２の受信回路それぞれに前記同軸コネクタを介して前
記第１，第２の外部アンテナが接続されてダイバーシテ
ィー受信状態となり、また前記第１，第２の外部アンテ
ナが前記同軸コネクタに接続されない時には、前記第２
の受信回路の電源をオフとし、接続された時には、前記
電源をオンとする前記同軸コネクタのスイッチに連動し
たスイッチング回路を有することを特徴とする携帯無線
電話機。 1. A shared transmitting / receiving antenna that can be housed in a housing, first and second receiving circuits having a diversity receiving function selected after detection, and first and second external systems including the shared transmitting / receiving antenna and two systems. A coaxial connector with a switch function for switching connection with an antenna, and when the first and second external antennas are not connected to the coaxial connector,
The first receiving circuit connected to the duplexer by the switch in the coaxial connector is connected to the dual-use antenna, the second receiving circuit is not connected to the second external antenna, and the second When the first and second external antennas are connected to the coaxial connector, respectively,
It said first through said coaxial connector on each second reception circuit, a second external antenna is connected to Ri Do the diversity reception state and said first, second external antenna
When the connector is not connected to the coaxial connector, the second
Turn off the power of the receiving circuit, and when connected,
Turn on the power by turning on the coaxial connector switch.
Mobile radio characterized by having a switching circuit
Phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4114336A JP2822766B2 (en) | 1992-05-07 | 1992-05-07 | Portable wireless telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4114336A JP2822766B2 (en) | 1992-05-07 | 1992-05-07 | Portable wireless telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05316010A JPH05316010A (en) | 1993-11-26 |
| JP2822766B2 true JP2822766B2 (en) | 1998-11-11 |
Family
ID=14635243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4114336A Expired - Lifetime JP2822766B2 (en) | 1992-05-07 | 1992-05-07 | Portable wireless telephone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2822766B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124255A (en) | 2007-11-12 | 2009-06-04 | Panasonic Corp | Portable radio device |
-
1992
- 1992-05-07 JP JP4114336A patent/JP2822766B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05316010A (en) | 1993-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5649306A (en) | Portable radio housing incorporating diversity antenna structure | |
| US6154177A (en) | Antenna device and radio receiver using the same | |
| JP3112464B2 (en) | Portable wireless communication device | |
| US8064959B2 (en) | Communication device with diversity antenna | |
| JP3048076B2 (en) | Mobile radio telephone | |
| US6667723B2 (en) | System and method for a GPS enabled antenna | |
| JP4549672B2 (en) | System and method for GPS effective antenna | |
| US6738603B1 (en) | Radio communication apparatus with retractable antenna and its impedance matching method | |
| JP3915763B2 (en) | Mobile device | |
| JPH0396103A (en) | Expandable antenna device and method of resonance of the same | |
| JPH09121178A (en) | Portable telephone set and portable telephone system using it | |
| JP2000197126A (en) | Satellite communicating function adding device and dual mode portable radio equipment | |
| JP2822766B2 (en) | Portable wireless telephone | |
| JPH11251981A (en) | Mobile communication equipment | |
| JP2000049649A (en) | Antenna system | |
| JP2001119222A (en) | Small radio | |
| JPH08172374A (en) | Portable radio equipment | |
| JP4265651B2 (en) | Mobile device | |
| JP2004356895A (en) | External antenna connection structure for radio communication terminal | |
| JP3012611B1 (en) | Portable radio | |
| CN216721321U (en) | Radio frequency front-end device, radio frequency system and communication equipment | |
| JPH09223993A (en) | Antenna switching device and radio equipment using the device | |
| JP3600745B2 (en) | Dual-mode portable wireless communication device and antenna switching method | |
| JPH1198051A (en) | Antenna system for portable radio equipment and portable radio equipment incorporatated with the same | |
| KR100693624B1 (en) | Wireless communication terminal and method which uses sliding metal hinge as antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980804 |