JPS6453636A - Antenna sharing system - Google Patents
Antenna sharing systemInfo
- Publication number
- JPS6453636A JPS6453636A JP62210495A JP21049587A JPS6453636A JP S6453636 A JPS6453636 A JP S6453636A JP 62210495 A JP62210495 A JP 62210495A JP 21049587 A JP21049587 A JP 21049587A JP S6453636 A JPS6453636 A JP S6453636A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- transmission
- reception
- terminal
- terminal switch
- 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
Abstract
PURPOSE:To attain the antenna sharing at an adjoining transmitting/receiving area, by providing two pairs of filters having an LPF and an HPF between a transmission terminal and a reception terminal and switching the antenna and simultaneously, the set of filters. CONSTITUTION:A transmission terminal 7 is connected through a transmission terminal switch 1 and through a transmission LPF2 or a transmission HPF3 to an antenna terminal switch 9. In the same way, a reception terminal 8 is connected through a receiving terminal switch 10 and through a reception LPF4 or a reception HPF5 to an antenna terminal switch 9. An antenna terminal switch 9 is connected to an antenna 6 for transmission and reception. The HPF and LPF of the transmission and reception are changed-over by switches 1, 9 and 10. Thus, an antenna sharing at an adjoining transmitting/receiving band is realized.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62210495A JPH0793589B2 (en) | 1987-08-25 | 1987-08-25 | Antenna duplexer |
PCT/JP1987/000741 WO1988002559A1 (en) | 1986-10-06 | 1987-10-05 | Antenna sharing device |
US07/206,855 US4980660A (en) | 1986-10-06 | 1987-10-05 | Antenna sharing apparatus for switchable transmit/receive filters |
EP87906465A EP0287671B1 (en) | 1986-10-06 | 1987-10-05 | Antenna sharing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62210495A JPH0793589B2 (en) | 1987-08-25 | 1987-08-25 | Antenna duplexer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6453636A true JPS6453636A (en) | 1989-03-01 |
JPH0793589B2 JPH0793589B2 (en) | 1995-10-09 |
Family
ID=16590301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62210495A Expired - Lifetime JPH0793589B2 (en) | 1986-10-06 | 1987-08-25 | Antenna duplexer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0793589B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01212929A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Multicoupler |
JP2000151456A (en) * | 1998-11-05 | 2000-05-30 | Oki Electric Ind Co Ltd | Surface acoustic wave branching device of transmission band split type |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60214123A (en) * | 1984-04-09 | 1985-10-26 | Matsushita Electric Ind Co Ltd | Antenna common use device |
-
1987
- 1987-08-25 JP JP62210495A patent/JPH0793589B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60214123A (en) * | 1984-04-09 | 1985-10-26 | Matsushita Electric Ind Co Ltd | Antenna common use device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01212929A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Multicoupler |
JP2000151456A (en) * | 1998-11-05 | 2000-05-30 | Oki Electric Ind Co Ltd | Surface acoustic wave branching device of transmission band split type |
Also Published As
Publication number | Publication date |
---|---|
JPH0793589B2 (en) | 1995-10-09 |
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