JPH0624322B2 - wireless device - Google Patents
wireless deviceInfo
- Publication number
- JPH0624322B2 JPH0624322B2 JP63257051A JP25705188A JPH0624322B2 JP H0624322 B2 JPH0624322 B2 JP H0624322B2 JP 63257051 A JP63257051 A JP 63257051A JP 25705188 A JP25705188 A JP 25705188A JP H0624322 B2 JPH0624322 B2 JP H0624322B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- reception
- unit
- filter
- connection terminal
- 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
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、携帯型無線機などで、車載時に外部アンテナ
を装着し、ブースタ（送信電力増幅器）を接続して送信
出力を増加させることが可能な無線機に関し、特に、ブ
ースタの回路構成を簡素化するとともに、受信効率を増
加せしめることが可能な無線機に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can increase the transmission output by mounting an external antenna and connecting a booster (transmission power amplifier) to a portable wireless device or the like when mounted on a vehicle. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a possible wireless device, and more particularly to a wireless device capable of simplifying the circuit configuration of a booster and increasing reception efficiency.
［従来の技術］ 一般に、携帯型無線機などでは、車載時には送信出力を
増幅して使用するため、外部の高周波増幅装置に接続す
ることができるようにしている。すなわち、送受信共用
部のアンテナ端子に出力される送信波を、高周波増幅装
置に接続して送信出力を増加することができる。[Prior Art] Generally, in a portable wireless device or the like, a transmission output is amplified and used when mounted on a vehicle, so that it can be connected to an external high-frequency amplification device. That is, the transmission wave output to the antenna terminal of the transmission / reception shared unit can be connected to the high frequency amplifier to increase the transmission output.
第２図は、従来の無線機のブロック図である。FIG. 2 is a block diagram of a conventional wireless device.
同図において、１は携帯型無線機本体であり、その内部
には受信回路２と、受信高周波フィルタ３と、送受信共
用部４と、高周波切換スイッチ５と、送信高周波フィル
タ６と、送信回路７と、内部アンテナ８、および外部ア
ンテナ端子１９を有している。また、１３はブースタで
あり、その内部において、１４は送信電力増幅部、１６
は増幅器送受信共用部、１７は外部アンテナ端子、１８
は外部アンテナ、２１は送受信共用部、２２は受信高周
波増幅部である。In the figure, reference numeral 1 is a main body of a portable wireless device, in which a receiving circuit 2, a receiving high frequency filter 3, a transmission / reception common section 4, a high frequency changeover switch 5, a transmitting high frequency filter 6 and a transmitting circuit 7 are provided. And an internal antenna 8 and an external antenna terminal 19. Further, 13 is a booster, in which 14 is a transmission power amplifier, 16
Is an amplifier transmitting / receiving unit, 17 is an external antenna terminal, 18
Is an external antenna, 21 is a transmission / reception shared unit, and 22 is a reception high frequency amplification unit.
上記構成において、携帯型無線機本体１は、ブースタ１
３を接続して送信出力を増幅する場合、送受信共用部４
のアンテナ端子から出力される送信出力をブースタ１３
の励振入力としている。In the above configuration, the portable wireless device main body 1 includes the booster 1
When 3 is connected and the transmission output is amplified, the transmission / reception shared unit 4
Transmitter output from the antenna terminal of the booster 13
The excitation input is.
そのため、ブースタ１３内では、共用部２１と受信高周
波フィルタ３と送信高周波フィルタ６とで構成される共
用器により、増幅する前に送信波と受信波とを分岐し、
その後、送信波を送信増幅部１４で増幅する。そして、
再び同様な構成の共用器で受信波と合成し、外部アンテ
ナ端子１７へ接続している。Therefore, in the booster 13, a duplexer composed of the shared unit 21, the reception high-frequency filter 3, and the transmission high-frequency filter 6 branches the transmission wave and the reception wave before amplification,
After that, the transmission wave is amplified by the transmission amplification unit 14. And
It is again combined with the received wave by a duplexer having the same configuration and connected to the external antenna terminal 17.
一方、受信波については、フィルタのロスを補うため、
受信高周波増幅部２２で増幅している。On the other hand, for the received wave, in order to compensate the loss of the filter,
It is amplified by the reception high frequency amplifier 22.
従来の無線機は、以上のような構成となっていた。The conventional wireless device has the above-described configuration.
［解決すべき課題］ 上述した従来の無線機では、送信波と受信波について、
ともに二個分の高周波フィルタによるロスが発生するほ
か、受信側のロスを補うために止むを得ず受信高周波増
幅部が必要となっていたため、コストアップと受信性能
劣化が避けられないという課題があった。[Problems to be Solved] In the above-described conventional wireless device, regarding the transmitted wave and the received wave,
In addition to the loss caused by two high-frequency filters, there was an unavoidable need for a receiving high-frequency amplification section to compensate for the loss on the receiving side, so there was a problem that cost increase and reception performance deterioration could not be avoided. there were.
本発明は、上記課題にかんがみてなされたもので、ブー
スタの回路構成を簡素化するとともに、受信効率を増加
せしめることが可能な無線機の提供を目的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a wireless device that simplifies the circuit configuration of a booster and can increase reception efficiency.
［課題の解決手段］ 上記目的を達成するため、本発明の無線機は、無線機本
体は、送信回路と送信フィルタを有する送信部と、受信
回路と受信フィルタを有する受信部と、内部アンテナ
と、上記送信部と受信部でこの内部アンテナを共用して
接続する送受信共用部と、上記送信部と受信部をブース
タに接続する外部接続端子と、上記送信部と受信部の入
出力を上記送受信共用部に接続するか上記外部接続端子
に接続するか切り換える切換スイッチとを備え、ブース
タは、上記外部接続端子から出力される送信信号を増幅
する送信電力増幅部と、ブースタ用送信フィルタと、外
部アンテナを接続するにあたり、受信信号は上記外部接
続端子へ入力せしめ、送信信号は上記ブースタ用送信フ
ィルタを介して上記送信電力増幅部の出力信号とする増
幅器用送受信共用部とを備えた構成としてある。[Means for Solving the Problems] In order to achieve the above object, in a radio device of the present invention, a radio device main body includes a transmission unit having a transmission circuit and a transmission filter, a reception unit having a reception circuit and a reception filter, and an internal antenna. , A transmission / reception shared unit that connects the internal antenna between the transmission unit and the reception unit, an external connection terminal that connects the transmission unit and the reception unit to a booster, and input / output of the transmission unit and the reception unit The booster is provided with a changeover switch that switches between connecting to the common unit or the external connection terminal, the booster includes a transmission power amplification unit that amplifies a transmission signal output from the external connection terminal, a booster transmission filter, and an external unit. When connecting the antenna, the received signal should be input to the external connection terminal, and the transmitted signal should be the output signal of the transmission power amplifier through the booster transmission filter. It is configured to include a transmission / reception shared unit for a width device.
すなわち、無線機本体は、送信フィルタの出力を送受信
共用部の送信入力端子か送信外部接続端子かに切り換え
るスイッチと、受信フィルタの入力を送受信共用部の受
信出力端子か受信外部接続端子かに切り換えるスイッチ
とを有している。That is, the radio unit switches the output of the transmission filter to the transmission input terminal or the transmission external connection terminal of the transmission / reception shared unit, and switches the input of the reception filter to the reception output terminal or the reception external connection terminal of the transmission / reception shared unit. And a switch.
このような構成とすることにより、無線機本体内の送受
信フィルタが送受信共用器と高周波外部接続端子とに切
り換え接続され、外部に送信増幅器を接続した場合に、
送信増幅器内部の余分な受信用高周波フィルタや受信増
幅部が不必要になる。With such a configuration, the transmission / reception filter in the main body of the radio is switched and connected to the transmission / reception duplexer and the high frequency external connection terminal, and when the transmission amplifier is connected to the outside,
An extra high-frequency filter for reception and a reception amplification section inside the transmission amplifier are unnecessary.
［実施例］ 以下、図面にもとづいて本発明の実施例を説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図は、本発明の一実施例に係る携帯型無線機のブロ
ック図である。なお、従来例と共通または対応する部分
については同一の符号で表す。FIG. 1 is a block diagram of a portable radio device according to an embodiment of the present invention. The parts common to or corresponding to the conventional example are denoted by the same reference numerals.
同図において、９は受信高周波外部接続端子、１０は送
信高周波外部接続端子、１１は増幅器受信出力端子、１
２は増幅器送信入力端子である。In the figure, 9 is a reception high frequency external connection terminal, 10 is a transmission high frequency external connection terminal, 11 is an amplifier reception output terminal, 1
2 is an amplifier transmission input terminal.
従って、携帯型無線機１は、受信回路２と、受信フィル
タ３と、送受信共用部４と、高周波切換スイッチ５と、
送信フィルタ６と、送信回路７と、内部アンテナ８と、
受信外部接続端子９と、送信外部接続端子１０から構成
されている。Therefore, the portable wireless device 1 includes the reception circuit 2, the reception filter 3, the transmission / reception shared unit 4, the high frequency switching switch 5,
A transmission filter 6, a transmission circuit 7, an internal antenna 8,
It is composed of a reception external connection terminal 9 and a transmission external connection terminal 10.
そして、増幅器受信出力端子１１と増幅器送信入力端子
１２により、送信電力増幅部１４と送信フィルタ１５と
送受信共用部１６で構成されるブースタ１３に接続され
る。The amplifier reception output terminal 11 and the amplifier transmission input terminal 12 are connected to the booster 13 including the transmission power amplification section 14, the transmission filter 15, and the transmission / reception common section 16.
上記構成において、通常の携帯型無線機として使用する
場合は、第２図に示すのと同様に高周波切換スイッチ５
が切り換わり、内部アンテナとしての動作になる。In the above configuration, when used as an ordinary portable wireless device, the high frequency changeover switch 5 is used in the same manner as shown in FIG.
Switches to operate as an internal antenna.
一方、車載時などで送信出力を増幅し、外部アンテナ１
８を装着して使用する場合は、ブースタ１３が接続さ
れ、高周波切換スイッチ５は、高周波外部接続端子側に
切り換える。On the other hand, the external antenna 1
In the case where 8 is mounted and used, the booster 13 is connected, and the high frequency switching switch 5 is switched to the high frequency external connection terminal side.
このとき、ブースタ１３の送信入力端子１２に入力され
た送信波は、送信電力増幅部１４に加えられて増幅され
た後、送信フィルタ１５を通過する。そして、送受信共
用部１６で受信波と共用されて外部アンテナ１８へ出力
される。At this time, the transmission wave input to the transmission input terminal 12 of the booster 13 is added to the transmission power amplifier 14 and amplified, and then passes through the transmission filter 15. Then, the transmission / reception sharing unit 16 shares the received wave and outputs it to the external antenna 18.
一方、外部アンテナ１８から入力される受信波は、送受
信共用部１６を通過する。そして、直接、携帯型無線機
本体１の受信外部接続端子９へ入力され、送信フィルタ
３の入力に接続される。On the other hand, the received wave input from the external antenna 18 passes through the transmission / reception shared unit 16. Then, it is directly input to the reception external connection terminal 9 of the portable wireless device main body 1 and connected to the input of the transmission filter 3.
このように本実施例の無線機本体は、受信回路と、高周
波受信フィルタと、送信回路と、高周波送信フィルタ
と、アンテナ端子を含む送受信共用部と、第１の高周波
外部接続端子と、第２の高周波外部接続端子と、上記高
周波受信フィルタの入力を上記送受信共用部の受信出力
端子に接続するか上記第１の高周波外部接続端子に接続
するかを切り換える第１のスイッチと、上記高周波送信
フィルタの出力を上記送受信共用部の送信入力端子に接
続するか上記第２の高周波外部接続端子に接続するか切
り換える第２のスイッチとを有している。As described above, the wireless device main body of the present embodiment includes the receiving circuit, the high frequency receiving filter, the transmitting circuit, the high frequency transmitting filter, the transmission / reception common part including the antenna terminal, the first high frequency external connection terminal, and the second high frequency external connection terminal. A high-frequency external connection terminal, a first switch for switching whether the input of the high-frequency reception filter is connected to the reception output terminal of the transmission / reception shared section or the first high-frequency external connection terminal, and the high-frequency transmission filter And a second switch for switching whether to connect the output to the transmission input terminal of the transmission / reception common unit or the second high frequency external connection terminal.
［発明の効果］ 以上説明したように本発明は、コストの低減、受信性能
劣化防止、および回路構成のシンプル化を達成すること
が可能な無線機を提供できるという効果がある。[Effects of the Invention] As described above, the present invention has the effect of providing a wireless device that can achieve cost reduction, prevention of deterioration of reception performance, and simplification of the circuit configuration.
第１図は本発明の一実施例に係る無線機のブロック図、
第２図は従来の無線機のブロック図である。 １：無線機本体、２：受信回路 ３：受信高周波フィルタ ４：送受信共用部、５：高周波切換スイッチ ６：送信高周波フィルタ ７：送信回路、８：内部アンテナ ９：受信高周波外部接続端子 １０：送信高周波外部接続端子 １１：増幅器受信出力端子 １２：増幅器送信入力端子 １３：ブースタ、１４：送信電力増幅部 １５：増幅器送信フィルタ １６：増幅器送受信共用部 １７：外部アンテナ端子、１８：外部アンテナFIG. 1 is a block diagram of a radio device according to an embodiment of the present invention,
FIG. 2 is a block diagram of a conventional wireless device. 1: Radio unit main body, 2: Reception circuit 3: Reception high frequency filter 4: Transmission / reception shared section 5, High frequency changeover switch 6: Transmission high frequency filter 7: Transmission circuit, 8: Internal antenna 9: Reception high frequency external connection terminal 10: Transmission High-frequency external connection terminal 11: Amplifier reception output terminal 12: Amplifier transmission input terminal 13: Booster, 14: Transmission power amplification section 15: Amplifier transmission filter 16: Amplifier transmission / reception common section 17: External antenna terminal, 18: External antenna
Claims (1)
有する送信部と、受信回路と受信フィルタを有する受信
部と、内部アンテナと、上記送信部と受信部でこの内部
アンテナを共用して接続する送受信共用部と、上記送信
部と受信部をブースタに接続する外部接続端子と、上記
送信部と受信部の入出力を上記送受信共用部に接続する
か上記外部接続端子に接続するか切り換える切換スイッ
チとを具備し、ブースタは、上記外部接続端子から出力
される送信信号を増幅する送信電力増幅部と、ブースタ
用送信フィルタと、外部アンテナを接続するにあたり、
受信信号は上記外部接続端子へ入力せしめ、送信信号は
上記ブースタ用送信フィルタを介して上記送信電力増幅
部の出力信号とする増幅器用送受信共用部とを具備する
ことを特徴とする無線機。1. A radio unit, wherein a transmitter having a transmitter circuit and a transmitter filter, a receiver having a receiver circuit and a receiver filter, an internal antenna, and the transmitter and the receiver share the internal antenna. The transmission / reception shared unit to be connected, the external connection terminal for connecting the transmission unit and the reception unit to the booster, and the input / output of the transmission unit and the reception unit are switched to be connected to the transmission / reception shared unit or the external connection terminal. A booster, comprising a changeover switch, for connecting a transmission power amplification unit for amplifying a transmission signal output from the external connection terminal, a booster transmission filter, and an external antenna,
A radio equipment comprising: a reception signal input to the external connection terminal; and an amplifier transmission / reception common unit that outputs the transmission signal as an output signal of the transmission power amplification unit via the booster transmission filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63257051A JPH0624322B2 (en) | 1988-10-14 | 1988-10-14 | wireless device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63257051A JPH0624322B2 (en) | 1988-10-14 | 1988-10-14 | wireless device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02105636A JPH02105636A (en) | 1990-04-18 |
| JPH0624322B2 true JPH0624322B2 (en) | 1994-03-30 |
Family
ID=17301056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63257051A Expired - Lifetime JPH0624322B2 (en) | 1988-10-14 | 1988-10-14 | wireless device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624322B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04306922A (en) * | 1991-04-04 | 1992-10-29 | Nec Corp | Radio equipment for common use in microwave band transmission and reception |
| JP2570588B2 (en) * | 1993-07-29 | 1997-01-08 | 日本電気株式会社 | Transceiver |
| JPH07162560A (en) * | 1993-12-13 | 1995-06-23 | Nec Corp | Portable public telephone set |
| DE69630512T2 (en) | 1995-09-29 | 2004-05-06 | Matsushita Electric Industrial Co., Ltd., Kadoma | POWER AMPLIFIER AND COMMUNICATION DEVICE |
-
1988
- 1988-10-14 JP JP63257051A patent/JPH0624322B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02105636A (en) | 1990-04-18 |
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