JPS57127339A - Automatic antenna switching device - Google Patents
Automatic antenna switching deviceInfo
- Publication number
- JPS57127339A JPS57127339A JP56012416A JP1241681A JPS57127339A JP S57127339 A JPS57127339 A JP S57127339A JP 56012416 A JP56012416 A JP 56012416A JP 1241681 A JP1241681 A JP 1241681A JP S57127339 A JPS57127339 A JP S57127339A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- signal
- level
- high frequency
- comparison
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
- H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
- H04B7/0811—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception during preamble or gap period
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56012416A JPS57127339A (en) | 1981-01-29 | 1981-01-29 | Automatic antenna switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56012416A JPS57127339A (en) | 1981-01-29 | 1981-01-29 | Automatic antenna switching device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57127339A true JPS57127339A (en) | 1982-08-07 |
JPS6335134B2 JPS6335134B2 (ja) | 1988-07-13 |
Family
ID=11804653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56012416A Granted JPS57127339A (en) | 1981-01-29 | 1981-01-29 | Automatic antenna switching device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57127339A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62136134A (ja) * | 1985-12-10 | 1987-06-19 | Matsushita Electric Ind Co Ltd | ダイバ−シテイ受信装置 |
JPS6381428U (ja) * | 1986-11-13 | 1988-05-28 | ||
US5410748A (en) * | 1991-06-04 | 1995-04-25 | Sony Corporation | Space diversity receivers |
CN111146563A (zh) * | 2019-12-25 | 2020-05-12 | 河源市中启通讯科技有限公司 | 一种移动通讯设备及其天线组件 |
-
1981
- 1981-01-29 JP JP56012416A patent/JPS57127339A/ja active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62136134A (ja) * | 1985-12-10 | 1987-06-19 | Matsushita Electric Ind Co Ltd | ダイバ−シテイ受信装置 |
JPS6381428U (ja) * | 1986-11-13 | 1988-05-28 | ||
US5410748A (en) * | 1991-06-04 | 1995-04-25 | Sony Corporation | Space diversity receivers |
CN111146563A (zh) * | 2019-12-25 | 2020-05-12 | 河源市中启通讯科技有限公司 | 一种移动通讯设备及其天线组件 |
Also Published As
Publication number | Publication date |
---|---|
JPS6335134B2 (ja) | 1988-07-13 |
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