KR910002149A - Receiving start and transmission end sharing device in wireless communication device - Google Patents

Receiving start and transmission end sharing device in wireless communication device Download PDF

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Publication number
KR910002149A
KR910002149A KR1019890009204A KR890009204A KR910002149A KR 910002149 A KR910002149 A KR 910002149A KR 1019890009204 A KR1019890009204 A KR 1019890009204A KR 890009204 A KR890009204 A KR 890009204A KR 910002149 A KR910002149 A KR 910002149A
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KR
South Korea
Prior art keywords
transmission
output
signal
communication device
wireless communication
Prior art date
Application number
KR1019890009204A
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Korean (ko)
Inventor
나보규
Original Assignee
정용문
삼성전자 주식회사
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.)
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019890009204A priority Critical patent/KR910002149A/en
Publication of KR910002149A publication Critical patent/KR910002149A/en

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Abstract

내용 없음No content

Description

무선 통신장치에서의 수신초단과 송신종단의 공유장치Receiving start and transmission end sharing device in wireless communication device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 회로도.3 is a circuit diagram of the present invention.

Claims (1)

송신을 위한 변조신호를 발생하는 변조부(30)와 , 수신신호의 복조를 위한 복조부(28)와, 안테나 정합회로(21)와 접속된 양방향성 대역여파기(22)를 구비한 무선통신기의 송수신장치에 있어서, 송수신신호의 입출력 전환을 위하여 상기 대역여파기(22)와 접속된 써큘레이터(23)와, 상기 써큘레이터(23)의 수신신호화 변조부(30)의 출력신호를 입력으로 하는 결합부(24)와, 상기 결합부(24)의 출력단에 구성된 2단의 증폭기(25, 26)와 상기 증폭기(26)의 출력을 복조부(28)로 인가하는 제2대역여파기(27)와, 상기 제2대역여파기(27)의 출력을 써큘레이터(23)로 송신신호로서 인가하기 위한 스위치(29)와, 상기 변조부(30), 복조부(28)의 송수신 제어 및 스위치(29)의 스위칭 제어를 위한 제어부(31)를 구비함을 특징으로 하는 무선통신 장치에서의 수신초단과 송신종단 공유장치.Transmitting / receiving of a radio communication device having a modulation unit 30 for generating a modulated signal for transmission, a demodulation unit 28 for demodulating a received signal, and a bidirectional bandpass filter 22 connected to an antenna matching circuit 21. In the apparatus, a circulator 23 connected to the band filter 22 and an output signal of the reception signal modulation section 30 of the circulator 23 are input to switch input / output of a transmission / reception signal. And a second band filter 27 for applying the output of the amplifier 26 and the two stage amplifiers 25 and 26 configured at the output terminal of the coupling section 24 to the demodulator 28. And a switch 29 for applying the output of the second bandpass filter 27 to the circulator 23 as a transmission signal, and the transmission / reception control and switch 29 of the modulator 30 and the demodulator 28. The first and second transmission end sharing device in the wireless communication device, characterized in that it comprises a control unit for switching control of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890009204A 1989-06-30 1989-06-30 Receiving start and transmission end sharing device in wireless communication device KR910002149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890009204A KR910002149A (en) 1989-06-30 1989-06-30 Receiving start and transmission end sharing device in wireless communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890009204A KR910002149A (en) 1989-06-30 1989-06-30 Receiving start and transmission end sharing device in wireless communication device

Publications (1)

Publication Number Publication Date
KR910002149A true KR910002149A (en) 1991-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890009204A KR910002149A (en) 1989-06-30 1989-06-30 Receiving start and transmission end sharing device in wireless communication device

Country Status (1)

Country Link
KR (1) KR910002149A (en)

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