KR100300111B1 - 송수신회로 - Google Patents

송수신회로 Download PDF

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Publication number
KR100300111B1
KR100300111B1 KR1019980033400A KR19980033400A KR100300111B1 KR 100300111 B1 KR100300111 B1 KR 100300111B1 KR 1019980033400 A KR1019980033400 A KR 1019980033400A KR 19980033400 A KR19980033400 A KR 19980033400A KR 100300111 B1 KR100300111 B1 KR 100300111B1
Authority
KR
South Korea
Prior art keywords
frequency
transmission
trap
frequency band
circuit
Prior art date
Application number
KR1019980033400A
Other languages
English (en)
Korean (ko)
Other versions
KR19990023658A (ko
Inventor
가즈하루 아오키
Original Assignee
가타오카 마사타카
알프스 덴키 가부시키가이샤
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.)
Filing date
Publication date
Application filed by 가타오카 마사타카, 알프스 덴키 가부시키가이샤 filed Critical 가타오카 마사타카
Publication of KR19990023658A publication Critical patent/KR19990023658A/ko
Application granted granted Critical
Publication of KR100300111B1 publication Critical patent/KR100300111B1/ko

Links

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
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Noise Elimination (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
KR1019980033400A 1997-08-19 1998-08-18 송수신회로 KR100300111B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9-222695 1997-08-19
JP9222695A JPH1168614A (ja) 1997-08-19 1997-08-19 送受信回路

Publications (2)

Publication Number Publication Date
KR19990023658A KR19990023658A (ko) 1999-03-25
KR100300111B1 true KR100300111B1 (ko) 2001-10-27

Family

ID=16786474

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980033400A KR100300111B1 (ko) 1997-08-19 1998-08-18 송수신회로

Country Status (3)

Country Link
JP (1) JPH1168614A (ja)
KR (1) KR100300111B1 (ja)
CN (1) CN1110908C (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0983214A (ja) * 1995-09-14 1997-03-28 Goyo Denshi Kogyo Kk アンテナ共用器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240906B (en) * 1990-02-08 1994-04-13 Technophone Ltd Radio transceiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0983214A (ja) * 1995-09-14 1997-03-28 Goyo Denshi Kogyo Kk アンテナ共用器

Also Published As

Publication number Publication date
KR19990023658A (ko) 1999-03-25
JPH1168614A (ja) 1999-03-09
CN1209002A (zh) 1999-02-24
CN1110908C (zh) 2003-06-04

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