KR960003181A - WiFi Transceiver - Google Patents

WiFi Transceiver Download PDF

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Publication number
KR960003181A
KR960003181A KR1019940013669A KR19940013669A KR960003181A KR 960003181 A KR960003181 A KR 960003181A KR 1019940013669 A KR1019940013669 A KR 1019940013669A KR 19940013669 A KR19940013669 A KR 19940013669A KR 960003181 A KR960003181 A KR 960003181A
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KR
South Korea
Prior art keywords
frequency
amplifier
transmission
switches
oscillator
Prior art date
Application number
KR1019940013669A
Other languages
Korean (ko)
Other versions
KR0119559B1 (en
Inventor
김영달
우범익
Original Assignee
정장호
금성정보통신 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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Application filed by 정장호, 금성정보통신 주식회사 filed Critical 정장호
Priority to KR1019940013669A priority Critical patent/KR0119559B1/en
Publication of KR960003181A publication Critical patent/KR960003181A/en
Application granted granted Critical
Publication of KR0119559B1 publication Critical patent/KR0119559B1/en

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Classifications

    • 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
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band

Abstract

본 발명은 송수신 장치를 단일 선로로 구성하여 능동 소자 및 수동 소자의 수를 감소시키고, 송수신 상호 선로에 의한 신호 장애가 없애며 시스템의 크기를 축소시킨 무선 랜의 주파수 송수신 장치에 관한 것이다.The present invention relates to a frequency transmission / reception apparatus for a wireless LAN in which a transceiver is configured in a single line to reduce the number of active and passive elements, eliminates signal disturbances caused by mutual transmission / reception lines, and reduces the size of a system.

본 발명에서 제공하는 송수신 장치는 스위치 절환을 통해 송수신 전송로를 하나로 단일화 할 수 있도록 하였으며, 시스템의 송수신 상태를 곁정하는 제1 내지 제5스위치와, 상기 제1 및 제2스위치의 상태에 따라 저잡음 증폭기 또는 고전력 증폭기로 동작하는 제1증폭기와, 송수신 상태에 따라 상기 제1 내지 제5스위치의 접속 상태를 결정하는 제1 내지 제5스위칭 신호와 상기 제1증폭기의 전력을 조정하는 신호를 출력하는 고주파 조정기와, 제1발진 주파수를 발생시키는 제1발진기와, 제2발진 주파수를 발생시키는 제2발진기와, 상기 제1 및 제2발진기의 발진 주파수를 조정하는 주파수 조정기와, 상기 제1발진기의 발진 주파수를 가지고 상기 제2 및 제3스위치의 상태에 따라 입력 주파수를 상향 또는 하향 조정하는 믹서와, 중간 주파수를 증폭하는 제2증폭기와,상기 제2발진기의 발진 주파수를 가지고 상기 제4및 제5스위치의 상태에 따라 입력 주파수를 변조 또는 복조하는 변복조기로 구성된다.The transmission and reception apparatus provided by the present invention enables the transmission and reception transmission path to be unified through a switch switching. The first to fifth switches for determining the transmission and reception state of the system and the low noise according to the states of the first and second switches are provided. A first amplifier operating as an amplifier or a high power amplifier, and outputting a first to fifth switching signal for determining a connection state of the first to fifth switches and a signal for adjusting power of the first amplifier according to a transmission and reception state; A high frequency regulator, a first oscillator for generating a first oscillation frequency, a second oscillator for generating a second oscillation frequency, a frequency regulator for adjusting oscillation frequencies of the first and second oscillators, and a first oscillator of A mixer having an oscillation frequency and adjusting an input frequency up or down according to the states of the second and third switches, and a second amplification amplifying an intermediate frequency And a modulator demodulating the oscillation frequency of the second oscillator and modulating or demodulating the input frequency according to the states of the fourth and fifth switches.

Description

무선 랜의 주파수 송수신 장치WiFi Transceiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 바람직한 일 실시예에 따른 주파수 송수신 장치에 대한 개략 블럭도이다.2 is a schematic block diagram of a frequency transmitting and receiving apparatus according to an embodiment of the present invention.

Claims (6)

시스템의 송수신 상태를 결정하는 제1 내지 제5스위치와, 상기 제1 및 제2스위치의 상태에 따라 저잡음 증폭기 또는 고전력 증폭기로 동작하는 제1증폭기와, 송수신 상태에 따라 상기 제1 내지 제5스위치의 접속 상태를 결정하는 제1 내지 제5스위칭 신호와 상기 제1증폭기의 전력을 조정하는 신호틀 출력하는 고주파 조정기와, 제1발진 주파수를 발생시키는 제1발진기와, 제2발진 주파수를 발생시키는 재2발진기와, 상기 제1및 제2발진기의 발진 주파수를 조정하는 주파수 조정기와, 상기 제1발진기의 발진 주파수를 가지고 상기 제2 및 제3스위치의 상태에 따라 입력 주파수를 상향 또는 하향 조정하는 믹서와, 중간 주파수를 증폭하는 제2증폭기와,상기 제2발진기의 발진 주파수를 가지고 상기 제4및 제5스위치의 상태에 따라 입력 주파수를 변조 또는 복조하는 변복조기로 구성되는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.A first to fifth switch for determining a transmission / reception state of the system, a first amplifier operating as a low noise amplifier or a high power amplifier according to the states of the first and second switches, and the first to fifth switches according to the transmission / reception state Generating a first oscillation frequency, a first oscillator for generating a first oscillation frequency, a first oscillator for generating a first oscillation frequency, a first high frequency regulator for outputting a first to fifth switching signal and a signal for adjusting the power of the first amplifier; A second oscillator, a frequency regulator for adjusting oscillation frequencies of the first and second oscillators, and an input frequency for adjusting the input frequency up or down according to the states of the second and third switches with an oscillation frequency of the first oscillator A mixer, a second amplifier for amplifying the intermediate frequency, and having the oscillation frequency of the second oscillator modulates or demodulates the input frequency according to the states of the fourth and fifth switches. Frequency transceiver device of the wireless LAN, characterized in that configured as a demodulator. 제1항에 있어서, 상기 제1스위치는 송신 상태일때 제1증폭기의 출력을 안테나에 접속시키고, 수신 상태일때 제1증폭기의 출력을 상기 믹서의 일 입력에 접속시키는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.The frequency of a wireless LAN according to claim 1, wherein the first switch connects the output of the first amplifier to the antenna in the transmission state and the output of the first amplifier to the input of the mixer in the reception state. Transceiver. 제1항에 있어서, 상기 제2스위치는 송신 상태일때 상기 믹서의 출력을 상기 제1증폭기의 입력에 접속시키고, 수신 상태일때 상기 안테나를 상기 제1증폭기의 입력에 접속시키는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.The wireless LAN of claim 1, wherein the second switch connects an output of the mixer to an input of the first amplifier in a transmission state, and connects the antenna to an input of the first amplifier in a reception state. Frequency transceiver. 제1항에 있어서. 상기 제3스위치는 송신 상태일때 상기 제2증폭기의 출력을 상기 믹서에 접속시키고,수신 상태일때 상기 제2증폭기의 출력을 상기 변복조기에 접속시키는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.The method of claim 1. And the third switch connects the output of the second amplifier to the mixer in a transmission state, and connects the output of the second amplifier to the modulator in a reception state. 제1항에 있어서, 상기 제4스위치는 송신 상태일때 상기 변복조기의 출력을 상기 제2증폭기의 입력에 접속시키고, 수신 상태일때 상기 믹서의 출력을 상기 제2증폭기의 입력에 접속시키는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.2. The method of claim 1, wherein the fourth switch connects the output of the modulator to the input of the second amplifier when in the transmitting state, and connects the output of the mixer to the input of the second amplifier in the receiving state. Frequency transceiver of WiFi. 제1항에 있어서, 상기 제5스위치는 송신 상태일때 송신할 데이타가 상기 변복조기에 인가되게 하고, 수신 상태일때 송신 데이타 단자를 접지시키는 것을 특징으로 하는 무선 랜의 주파수 송수신 장치.The apparatus of claim 1, wherein the fifth switch is configured to apply data to be transmitted to the demodulator in a transmission state and to ground a transmission data terminal in a reception state. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940013669A 1994-06-17 1994-06-17 Radio-lan KR0119559B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940013669A KR0119559B1 (en) 1994-06-17 1994-06-17 Radio-lan

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Application Number Priority Date Filing Date Title
KR1019940013669A KR0119559B1 (en) 1994-06-17 1994-06-17 Radio-lan

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KR960003181A true KR960003181A (en) 1996-01-26
KR0119559B1 KR0119559B1 (en) 1997-10-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100630140B1 (en) * 1999-07-28 2006-09-29 삼성전자주식회사 Direct frequency conversion device and method in a mobile communication system
KR101038700B1 (en) * 2008-06-20 2011-06-02 에이피엘시스템(주) Wireless receiver for controlling runway-lamp

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