JPS6478004A - Mobile station diversity antenna device - Google Patents
Mobile station diversity antenna deviceInfo
- 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
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
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.
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)
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 |
-
1987
- 1987-09-18 JP JP23458687A patent/JP2597104B2/en not_active Expired - Fee Related
Cited By (4)
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
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |