JPS6478004A - Mobile station diversity antenna device - Google Patents

Mobile station diversity antenna device

Info

Publication number
JPS6478004A
JPS6478004A JP23458687A JP23458687A JPS6478004A JP S6478004 A JPS6478004 A JP S6478004A JP 23458687 A JP23458687 A JP 23458687A JP 23458687 A JP23458687 A JP 23458687A JP S6478004 A JPS6478004 A JP S6478004A
Authority
JP
Japan
Prior art keywords
feed line
coaxial feed
sleeve antenna
external conductor
antenna
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.)
Granted
Application number
JP23458687A
Other languages
Japanese (ja)
Other versions
JP2597104B2 (en
Inventor
Norihiko Shimada
Kazuhiro Kosaka
Yoshio Ebine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
DKK Co Ltd
Original Assignee
Denki Kogyo Co Ltd
Nippon Telegraph and Telephone Corp
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 Denki Kogyo Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Denki Kogyo Co Ltd
Priority to JP23458687A priority Critical patent/JP2597104B2/en
Publication of JPS6478004A publication Critical patent/JPS6478004A/en
Application granted granted Critical
Publication of JP2597104B2 publication Critical patent/JP2597104B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To miniaturize and integrate sleeve antennas of upper and lower stages with superior radiation characteristic by forming a coaxial feed line of three layers in which the internal conductor of the coaxial feed line in the sleeve antenna of lower stage and the external conductor of the coaxial feed line in the sleeve antenna of upper stage are used commonly. CONSTITUTION:The external conductor 19 of the coaxial feed line 26b in the sleeve antenna II of lower stage is opened at a point A at a lower side, and it is connected to the external conductor 21 of the coaxial feed line 20b having a feed terminal 27b on one end at the point A. Also, the internal conductor 22 of the feed line 20b is connected to the external conductor 17 of the coaxial feed line 26a in the sleeve antenna I of upper stage at the point A, and the external conductor 17 of the coaxial feed line 26a and the internal conductor 17 of the coaxial feed line 28b in the sleeve antenna II of lower stage are used commonly, and the coaxial feed line of three layer structure whose cross section is formed in concentrically is formed at a part from the pint A to the center part of the sleeve antenna II of lower stage. In such a way, it is possible to miniaturize and integrate the antenna without deteriorating the impedance characteristic and the radiation characteristic of individual sleeve antenna.
JP23458687A 1987-09-18 1987-09-18 Mobile station diversity antenna device Expired - Fee Related JP2597104B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23458687A JP2597104B2 (en) 1987-09-18 1987-09-18 Mobile station diversity antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23458687A JP2597104B2 (en) 1987-09-18 1987-09-18 Mobile station diversity antenna device

Publications (2)

Publication Number Publication Date
JPS6478004A true JPS6478004A (en) 1989-03-23
JP2597104B2 JP2597104B2 (en) 1997-04-02

Family

ID=16973343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23458687A Expired - Fee Related JP2597104B2 (en) 1987-09-18 1987-09-18 Mobile station diversity antenna device

Country Status (1)

Country Link
JP (1) JP2597104B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220341A (en) * 1989-11-01 1993-06-15 Nippondenso Co., Ltd. Telescoping antenna apparatus with leakage prevention between its upper and lower sections
EP1309033A2 (en) * 2001-11-01 2003-05-07 Motorola, Inc. An arrangement for radiating rf signals from a radio transmitter
KR100436665B1 (en) * 2001-11-27 2004-06-22 삼성전자주식회사 Interface connection cable having antenna and antenna diversity fabrication in mobile communication terminal thereof
JP2010041317A (en) * 2008-08-04 2010-02-18 Dx Antenna Co Ltd Antenna apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220341A (en) * 1989-11-01 1993-06-15 Nippondenso Co., Ltd. Telescoping antenna apparatus with leakage prevention between its upper and lower sections
EP1309033A2 (en) * 2001-11-01 2003-05-07 Motorola, Inc. An arrangement for radiating rf signals from a radio transmitter
KR100436665B1 (en) * 2001-11-27 2004-06-22 삼성전자주식회사 Interface connection cable having antenna and antenna diversity fabrication in mobile communication terminal thereof
JP2010041317A (en) * 2008-08-04 2010-02-18 Dx Antenna Co Ltd Antenna apparatus

Also Published As

Publication number Publication date
JP2597104B2 (en) 1997-04-02

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Legal Events

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