KR960006012Y1 - Wireless telephone duplexer - Google Patents
Wireless telephone duplexer Download PDFInfo
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- KR960006012Y1 KR960006012Y1 KR2019930014578U KR930014578U KR960006012Y1 KR 960006012 Y1 KR960006012 Y1 KR 960006012Y1 KR 2019930014578 U KR2019930014578 U KR 2019930014578U KR 930014578 U KR930014578 U KR 930014578U KR 960006012 Y1 KR960006012 Y1 KR 960006012Y1
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- wireless telephone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
내용없음No content
Description
제1도는 종래의 듀플렉서 회로도1 is a conventional duplexer circuit diagram
제2도는 본 고안에 의한 듀플렉서 회로구성도2 is a circuit diagram of a duplexer according to the present invention
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
20 : 수신측 1차 증폭부 30 : 송신측 종단증폭부20: receiver primary amplifier 30: transmitter termination amplifier
Ra-Re : 저항 Ca-Cg : 콘덴서Ra-Re: Resistor Ca-Cg: Capacitor
Q3-Q4 : 트랜지스터 SP : 스프링코일Q3-Q4: Transistor SP: Spring Coil
본 고안은 본체(수신기)와 무선 진화기(송신기)간에 하나의 안테나를 통해 통신함에 있어 송,수신시의 서로 다른 주파수 대역으로 통신하는데 적합하도록 한 무선 전화기의 듀플랙서(Duplexer)에 관한 것이다.The present invention relates to a duplexer of a radiotelephone which is adapted to communicate in different frequency bands at the time of transmission and reception in communication through a single antenna between a main body (receiver) and a wireless evolution device (transmitter). .
일반적으로 무선 전화기에서의 듀플렉서는 송신기와 수선기를 분리설치하여 서로 간섭하지 않도록 하고 통신을 같은 장소에서 하도록 하는 통신 방식으로서, 즉 하나의 안테나를 송신과 수신에 공동으로 사용하기 위하여 송신할 때에는 송신출력으로부터 수신기를 보호하고, 수신할 때에는 반향신호를 수신기에 공급하도록 하는 기능이다.In general, a duplexer in a cordless telephone is a communication method in which a transmitter and a receiver are separated so that they do not interfere with each other and communication is performed at the same place, that is, a transmission power when transmitting a single antenna for joint use for transmission and reception. It is a function to protect the receiver from and supply an echo signal to the receiver when receiving.
이러한 기능을 갖는 종래의 듀플렉서 회로구성도는 제1도에 나타낸 바와 같이 안테나(ANT)에 인덕턴스와 캐패시터를 병렬 조합시킨 복수의 LC 회로(C1)(C2)(C3)(C4)를 직렬화시켜 무선 전화기의 송신측과 수신측으로 분리 구성하고, 상기 송신측 LC 회로(C3)(C4)의 입력단에는 중간주파 코일(L3)을 통해 전압발진기(VCO)로부터의 고주파 신호를 증폭하여 원하는 주파수만을 동조시키는 송신 종단증폭부(30)를 두고, 상기 수신측 LC회로 (C1)(C2)의 출력단에는 가변동조기(L1)를 통해 불필요한 주파수를 클리핑시켜 필요 주파수만 미도시된, 중간주파 증폭기에 공급하는 수신측 1차 증폭부(20)를 구비하여서 구성된 것이다.As shown in FIG. 1, a conventional duplexer circuit configuration having such a function includes a plurality of LC circuits C 1 (C 2 ) (C 3 ) (C 4 ) in which an inductance and a capacitor are combined in parallel with an antenna ANT. Serialization of the radiotelephone separates the transmitting side and the receiving side of the radiotelephone, and inputs the high frequency signal from the voltage oscillator VCO through the intermediate frequency coil L 3 at an input of the transmitting LC circuit C 3 (C 4 ). A transmission termination amplifier 30 for amplifying and tuning only a desired frequency is provided, and an unnecessary frequency is clipped to the output terminal of the receiving LC circuit C 1 (C 2 ) by means of a variable tuner L 1 so that only a required frequency is missed. It is configured to include a receiving side primary amplifier 20 for supplying the intermediate frequency amplifier shown.
여기서 상기한 수신측 1차 증폭부(20)의 구체적인 회로구성은 체널형 전계효과 트랜지스터(FET)의 드레인측으로 중간주파 코일(L2)을 두고, 이 코일(L2)의 2차측으로 콘덴서(C7)(C8)를 통해 트랜지스터(Q1)를 연결하여서 구성된 것이다.The circuit configuration of the receiver primary amplifier 20 includes the intermediate frequency coil L 2 at the drain side of the channel-type field effect transistor FET, and the capacitor ( 2 ) at the secondary side of the coil L 2 . It is configured by connecting the transistor Q 1 through C 7 ) (C 8 ).
또한 상기한 송신측 증단 증폭부(30)는 중간주파 코일(L3)의 1차측으로 트랜지스터(Q2)와 저항(R5)(R6) 및 콘덴서(C11-C14)조합으로 구성된 것이다. 그러나 이와 같은 종래의 듀플렉서는 인덕턴스와 캐패시터로만 형성되어 있어서 실재 응용할시 별도의 송신 및 수신용 증폭단을 필요로 할 뿐만 아니라 신호 전송매체로 중간주파 코일(IFT)을 적용하는 것이어서 회로 설계상 조정이 어렵고 그에 따른 제작 단가가 많이 소요되는 문제점을 가지고 있었다.In addition, the transmitting side boost amplifier 30 is composed of a combination of a transistor (Q 2 ), a resistor (R 5 ) (R 6 ) and a capacitor (C 11 -C 14 ) on the primary side of the intermediate frequency coil (L 3 ). will be. However, such a conventional duplexer is formed of only inductance and capacitor, which requires a separate transmitting and receiving amplifier stage in actual application, and applies intermediate frequency coil (IFT) as a signal transmission medium, making it difficult to adjust the circuit design. The production cost accordingly had a problem that takes a lot.
따라서 본 고안은 상기한 종래 기술의 문제점을 감안하여, 신호 전송매체로 코어가 없는 스프링 타입의 코일을 적용하여 각 증폭단과 같이 모듈화함으로써 회로의 안정성 및 송,수신 감도를 양호하게 하는 동시에 제조단가를 갖출 수 있는 새로운 형태의 듀플렉서를 제공하는데 있다.Therefore, in view of the problems of the prior art described above, the present invention applies a spring-type coil without a core as a signal transmission medium and modularizes it with each amplifier stage to improve the stability of the circuit and the transmission and reception sensitivity, and at the same time increase the manufacturing cost. To provide a new type of duplexer that can be equipped.
상기 목적을 달성하기 위한 본 고안의 수단으로,As a means of the present invention for achieving the above object,
안테나를 공유하는 접속점에 인덕턴스와 캐패시터를 병렬한 복수의 LC 회로(C1)(C2를 직렬하고 가변 인덕턴스 출력단이 트랜지스터(Q3)베이스단에 콘덴서(Ca)와 일측이 접지된 콘덴서(Cd)에 연결된 지항(Ra)과 연결되며 에미터단은 병렬 연결된 저항(Rc)와 콘덴서(Cb)가 각각 접지되어 연결되고, 병렬연결된 저항(Rb)와 콘덴서(Cc)를 통해 제어전압이 인가되는 컬랙터단으로부터 본체에서 수신된 음성선호를 증폭 출력하여 무선 전화기의 중간주파 증폭기측으로 증폭전송하도록 한 수선측 1차 증폭부(20)와,A capacitor (Cd) in which a plurality of LC circuits (C 1 ) (C 2 in parallel with an inductance and a capacitor are paralleled to a connection point sharing an antenna, and a variable inductance output terminal is grounded at the base of the transistor (Q 3 ) and the capacitor (Ca) and one side are grounded. ) Is connected to the ground (Ra) connected to the emitter terminal is connected to the parallel connected resistor (Rc) and capacitor (Cb) is grounded, respectively, and the control voltage is applied through the parallel connected resistor (Rb) and capacitor (Cc) A repair side primary amplifier 20 for amplifying and outputting the audio signal received from the main body from the terminal by amplifying and transmitting the voice signal to the intermediate frequency amplifier side of the wireless telephone;
상기 무선 전화기의 전압발진기로부터 일측이 접지된 콘덴서(Ce)와 저항(Rd)(Re)을 통해 제어전압(Vdd)이 인가되는 트랜지스터 베이스단에 고주파 선호가 인가되며, 에미터가 접지되고, 콘덴서(Cg)(Cf)와 스프링코일(SP)이 연결되어 상기 제어전압(Vdd)이 인가되는 컬랙터단은 상기 인가된 고주파 신호가 증폭 출력되며, 스프링코일(SP)과 인덕턴스와 캐패시터를 병렬한 복수의 LC회로(C3)(C4)에 의해 원하는 주파수만을 동조시켜 안테를 통해 본체에 고주파 신를 증폭,전송하도록 한 송신측 종단 증폭부(30)을 포함하도록 함으로써 성된다.The high frequency preference is applied to the transistor base terminal to which the control voltage Vdd is applied through the capacitor Ce and the resistor Rd (Re) grounded from one side of the voltage oscillator of the wireless telephone, and the emitter is grounded. (Cg) (Cf) and the spring coil (SP) is connected to the collector terminal to which the control voltage (Vdd) is applied, the applied high frequency signal is amplified and output, a plurality of parallel to the spring coil (SP), inductance and capacitor This is achieved by including a transmitting end termination amplifier 30 which amplifies and transmits a high frequency signal to the main body through an antenna by tuning only a desired frequency by the LC circuit C 3 (C 4 ).
이하,본 고안의 바람직한 실시예를 첨부된 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
여기서 종래의 기술과 동일한 부분은 같은 부호를 명기하여 표시하였다.Here, the same parts as in the prior art are indicated by the same reference numerals.
제2도는 본 고안에 의한 무선 전화기 듀플렉서 회로구성도로서, 안테나(ANT)를 공유하는 접속점(P)에 인덕턴스와 캐패시터를 병렬한 복수의 LC 회로(C1)(C2)를 직렬하고 가변 인덕턴스(L1) 출력단이 트랜지스터(Q3) 베이스단에 콘덴서(Ca)와 일측이 접지된 콘덴서(Cd)에 연결된 저항(Ra)과 연결되며, 에미터단은 병렬연결된 저항(Rc)와 콘덴서(Cb)가 각각 접지되어 연결되고, 병렬연결된 저항(Rb)와 콘덴서(Cc)를 통해 제어전압(Vdd)이 인가되는 콜렉터단으로부터 본체(수신기)에서 수신된 음성신호를 증폭 출력하여 무선 전화기(송신기)의 중간주파 중푹기측으로 증폭전송하도록 한 수신측 1차 증폭부(20)를 설치한다.2 is a configuration diagram of a duplexer circuit for a wireless telephone according to the present invention, in which a plurality of LC circuits C 1 (C 2 ) in parallel with an inductance and a capacitor are connected to a connection point P sharing an antenna ANT, and a variable inductance is shown. (L 1 ) The output terminal is connected to a resistor (Ra) connected to the capacitor (Ca) and one side of the grounded capacitor (Cd) at the base of the transistor (Q 3 ), the emitter stage is connected in parallel with the resistor (Rc) and the capacitor (Cb) ) Is grounded and connected to each other, and amplified and output the voice signal received from the main body (receiver) from the collector terminal to which the control voltage Vdd is applied through the parallel-connected resistor Rb and capacitor Cc. A receiving side primary amplifier 20 for amplifying and transmitting the intermediate frequency of the middle side of the funnel is installed.
상기 무선 전화기(송신기)의 전압발진기(VCO)로부터 일측이 접지된 콘덴서(Ce)와 저항(Rd)(Re)을 통해 제어전압(Vdd)이 인가되는 트랜지스터 베이스단에 고주파 신호가 인가되며, 또한 에미터가 접지되고, 콘덴서(Cg)(Cf)와 스프링코일(SP)이 연결되어 상기 제어전압(Vdd)이 인가되는 컬랙터단은 상기 인가된 고주파 신호가 증폭 출력되며 스프링코일(SP)과 인덕턴스와 캐패시터를 병렬한 복수의 LC회로(C3)(C4)에 의해 원하는 주파수만을 동조시커 안테나(ANT)를 통해 본체(수신기)에 고주파 신호를 증폭, 전송하도록 산 송신측 종단증폭부(30)를 설치되도록 구성한다.A high frequency signal is applied to a transistor base terminal to which a control voltage Vdd is applied through a capacitor Ce and a resistor Rd (Re) whose one side is grounded from the voltage oscillator VCO of the wireless telephone (transmitter). The collector stage to which the emitter is grounded, the capacitor (Cg) (Cf) and the spring coil (SP) are connected, and the control voltage (Vdd) is applied, the amplified output of the applied high frequency signal, the spring coil (SP) and inductance And a plurality of LC circuits C 3 and C 4 in parallel with the capacitors. The transmitter-end termination amplifier unit 30 amplifies and transmits a high frequency signal to the main body (receiver) via the tuning seeker antenna ANT. ) To be installed.
이와같이 구성된 본 고안은 본체에서 무선 전화기(송신기)로 수신하는 회로동작에 있어서는 인테나(ANT)를 통해 수신된 음성신호는 인덕턴스와 캐패시터를 병렬한 복수의 LC 회로(C1)(C2)를 통해 유전체 결합의 가변동조기(L1)에 인가된다. 이에 따른 가변동조기(L1)는 1차측으로부터 유도되는 수신선호가 있을 때에만 턴온하는 트랜지스터(Q3)의 출력단을 통캐 46 MHZ를 10.7 MHZ로 동조하여 중간주파 증폭기측으로 전달되도록 한다. 또한 상기와는 반대로 무선 전화기측에서 전압발진기(VCO)의 고주파 신호가 있을 때에만 송신종단증폭부(30)의 트랜지스터(Q4)가 턴온되고 이 트랜지스터(Q4)의 턴온으로 입력의 고주파신호를 증폭 출력하게 된다. 이와 동시에 증폭출력은 스프링 코일(SP)과 LC 회로(C3)(C4)에 의해 원하는 주파수만을 동조시켜 안테나(ANT)를 통해 본체(수신기)에 전송시키게 된다. 이때 안테나(ANT)를 통한 수신신호는 46 MHZ 이고 송신신호는 49 MHZ 이다.According to the present invention configured as described above, in the circuit operation received from the main body by a wireless telephone (transmitter), the voice signal received through the antenna (ANT) is transmitted through a plurality of LC circuits (C 1 ) (C 2 ) in parallel with an inductance and a capacitor. It is applied to the variable tuner L 1 of the dielectric bond. Accordingly, the variable tuner L 1 tunes the output terminal of the transistor Q 3 which is turned on only when there is a reception preference derived from the primary side, and transmits 46 MHZ to 10.7 MHZ to be delivered to the intermediate frequency amplifier side. On the contrary, the transistor Q4 of the transmission termination amplifier 30 is turned on only when there is a high frequency signal of the voltage oscillator VCO on the cordless telephone side, and the high frequency signal of the input is amplified by the turn-on of this transistor Q4. Will print. At the same time, the amplification output is transmitted to the main body (receiver) through the antenna ANT by tuning only the desired frequency by the spring coil SP and the LC circuit C 3 and C 4 . At this time, the reception signal through the antenna ANT is 46 MHZ and the transmission signal is 49 MHZ.
상술한 바와 같이 본 고안은 선호전송매체로서 스프링 코일을 두고 송신측 종단 증폭부와 수신측 1차 증폭부를 LC 회로와 모듈화함으로써 별도의 신호조정을 행할 필요없이 수신 감도 및 송신 출력을 최적으로 확보할 수가 있을 뿐만 아니라 제작을 용이하게 할 수가 있는 동시에 제작단가를 저렴하게 할 수가 있는 매우 유용한 효과가 있다.As described above, the present invention has a spring coil as a preferred transmission medium and modularizes the transmitting end termination amplifier and the receiving primary primary amplifier with the LC circuit so that the reception sensitivity and transmission output can be optimally secured without the need for additional signal adjustment. In addition to being able to facilitate production, there is a very useful effect that can reduce the production cost at the same time.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930014578U KR960006012Y1 (en) | 1993-07-30 | 1993-07-30 | Wireless telephone duplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930014578U KR960006012Y1 (en) | 1993-07-30 | 1993-07-30 | Wireless telephone duplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950005009U KR950005009U (en) | 1995-02-18 |
| KR960006012Y1 true KR960006012Y1 (en) | 1996-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930014578U KR960006012Y1 (en) | 1993-07-30 | 1993-07-30 | Wireless telephone duplexer |
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| Country | Link |
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| KR (1) | KR960006012Y1 (en) |
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1993
- 1993-07-30 KR KR2019930014578U patent/KR960006012Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR950005009U (en) | 1995-02-18 |
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