JPH0191349U - - Google Patents

Info

Publication number
JPH0191349U
JPH0191349U JP1987186605U JP18660587U JPH0191349U JP H0191349 U JPH0191349 U JP H0191349U JP 1987186605 U JP1987186605 U JP 1987186605U JP 18660587 U JP18660587 U JP 18660587U JP H0191349 U JPH0191349 U JP H0191349U
Authority
JP
Japan
Prior art keywords
signal line
frequency band
communication means
band
band rejection
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.)
Pending
Application number
JP1987186605U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1987186605U priority Critical patent/JPH0191349U/ja
Priority to US07/249,556 priority patent/US5072230A/en
Priority to CA000578830A priority patent/CA1314324C/en
Priority to DE3833288A priority patent/DE3833288C2/en
Priority to DE3844541A priority patent/DE3844541C2/en
Publication of JPH0191349U publication Critical patent/JPH0191349U/ja
Priority to CA000616023A priority patent/CA1313694C/en
Priority to US07/697,624 priority patent/US5258728A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transceivers (AREA)
  • Noise Elimination (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の基本的な構成を示
すブロツク図、第２図は帯域阻止フイルタ１３の
周波数特性を示すグラフ、第３図は先行技術を示
すブロツク図、第４図はアンテナ３および低域フ
イルタ２を等価的に示す電気回路図である。 １２…信号線、１３…帯域阻止フイルタ、１４
…ラジオ受信機、１５…高域フイルタ、１６…自
動車用電話機、１８…第１帯域阻止フイルタ、１
９…第２帯域阻止フイルタ。 Fig. 1 is a block diagram showing the basic configuration of an embodiment of the present invention, Fig. 2 is a graph showing the frequency characteristics of the band rejection filter 13, Fig. 3 is a block diagram showing the prior art, and Fig. 4 is a graph showing the frequency characteristics of the band rejection filter 13. 2 is an electric circuit diagram equivalently showing an antenna 3 and a low-pass filter 2. FIG. 12...Signal line, 13...Band rejection filter, 14
... Radio receiver, 15 ... High-pass filter, 16 ... Car telephone, 18 ... First band rejection filter, 1
9...Second band rejection filter.

Claims (1)

【実用新案登録請求の範囲】 第１の周波数帯域で少なくとも送信を行う第１
の通信手段と、 第１の周波数帯域と異なる第２の周波数帯域で
少なくとも受信を行い、その信号線が第１の通信
手段の信号線に接続された第２の通信手段とを備
える送信／受信装置であつて、 第２の通信手段の信号線には、信号線に直列な
静電容量を有する帯域阻止手段を設けたことを特
徴とする送信／受信装置。[Claims for Utility Model Registration] A first device that transmits at least in a first frequency band
and a second communication means that receives at least in a second frequency band different from the first frequency band and whose signal line is connected to the signal line of the first communication means. 1. A transmitting/receiving device, characterized in that the signal line of the second communication means is provided with band blocking means having a capacitance in series with the signal line.
JP1987186605U 1987-09-30 1987-12-08 Pending JPH0191349U (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1987186605U JPH0191349U (en) 1987-12-08 1987-12-08
US07/249,556 US5072230A (en) 1987-09-30 1988-09-26 Mobile telescoping whip antenna with impedance matched feed sections
CA000578830A CA1314324C (en) 1987-09-30 1988-09-29 Transmission and reception apparatus for automobile
DE3833288A DE3833288C2 (en) 1987-09-30 1988-09-30 MULTI-BAND ROD ANTENNA FOR MOTOR VEHICLES
DE3844541A DE3844541C2 (en) 1987-09-30 1988-09-30 Antenna circuit for a multiband antenna
CA000616023A CA1313694C (en) 1987-09-30 1991-03-15 Transmission and reception apparatus for automobile
US07/697,624 US5258728A (en) 1987-09-30 1991-05-09 Antenna circuit for a multi-band antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987186605U JPH0191349U (en) 1987-12-08 1987-12-08

Publications (1)

Publication Number Publication Date
JPH0191349U true JPH0191349U (en) 1989-06-15

Family

ID=31477823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987186605U Pending JPH0191349U (en) 1987-09-30 1987-12-08

Country Status (1)

Country Link
JP (1) JPH0191349U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015532042A (en) * 2012-08-21 2015-11-05 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Mobile terminal and radio frequency signal transmission / reception method
WO2019208309A1 (en) * 2018-04-26 2019-10-31 株式会社ヨコオ Matching circuit and antenna device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5458306A (en) * 1977-10-19 1979-05-11 Harada Ind Co Ltd Automotive antenna

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5458306A (en) * 1977-10-19 1979-05-11 Harada Ind Co Ltd Automotive antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015532042A (en) * 2012-08-21 2015-11-05 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Mobile terminal and radio frequency signal transmission / reception method
WO2019208309A1 (en) * 2018-04-26 2019-10-31 株式会社ヨコオ Matching circuit and antenna device

Similar Documents

Publication Publication Date Title
JPH0191349U (en)
JPH02130118U (en)
JPS59169151U (en) Transmitter/receiver antenna switching circuit
JPH0392837U (en)
JPH01160741U (en)
JPS6261548U (en)
JPH02138935U (en)
JPS6455746U (en)
JPS609342U (en) wireless receiving device
JPS62133443U (en)
JPS60186736U (en) FM-AM radio receiver
JPS63183727U (en)
JPS6052741U (en) Device with radio and radio receiver
JPH0328837U (en)
JPS61126633U (en)
JPS6072046U (en) antenna circuit
JPS61143351U (en)
JPS635735U (en)
JPS6275656U (en)
JPH0213304U (en)
JPS63142927U (en)
JPS60124145U (en) Filter switching device
JPH0472728U (en)
JPS6114541U (en) antenna input circuit
JPS6322754B2 (en)