JPS6322649B2 - - Google Patents
Info
- Publication number
- JPS6322649B2 JPS6322649B2 JP56079852A JP7985281A JPS6322649B2 JP S6322649 B2 JPS6322649 B2 JP S6322649B2 JP 56079852 A JP56079852 A JP 56079852A JP 7985281 A JP7985281 A JP 7985281A JP S6322649 B2 JPS6322649 B2 JP S6322649B2
- Authority
- JP
- Japan
- Prior art keywords
- mixer
- output
- frequency
- harmonic
- mixers
- 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.)
- Expired
Links
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000000691 measurement method Methods 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- H04B7/12—Frequency diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56079852A JPS57193139A (en) | 1981-05-25 | 1981-05-25 | Harmonic transmitting and receiving system with high sensitivity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56079852A JPS57193139A (en) | 1981-05-25 | 1981-05-25 | Harmonic transmitting and receiving system with high sensitivity |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57193139A JPS57193139A (en) | 1982-11-27 |
JPS6322649B2 true JPS6322649B2 (de) | 1988-05-12 |
Family
ID=13701721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56079852A Granted JPS57193139A (en) | 1981-05-25 | 1981-05-25 | Harmonic transmitting and receiving system with high sensitivity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57193139A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4322863C2 (de) * | 1993-07-09 | 1995-05-18 | Ant Nachrichtentech | Mobilfunkantennenanlage |
-
1981
- 1981-05-25 JP JP56079852A patent/JPS57193139A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57193139A (en) | 1982-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH063886B2 (ja) | 折り返し試験機 | |
US4186344A (en) | Frequency converter | |
KR960038686A (ko) | 단일 주파수에 의한 신호 송수신회로 | |
US5898907A (en) | Radio transmitter-receiver adopting both a single frequency and a double frequency conversion | |
JPH11341098A (ja) | 無線装置 | |
GB599549A (en) | Improvements in high-frequency radio relay stations | |
JPH0642638B2 (ja) | 無線通信装置 | |
US7184725B2 (en) | Pole switch down converter with symmetric resonator | |
JPS6322649B2 (de) | ||
US20130106398A1 (en) | Gain measurement circuit, gain measurement method, and communication apparatus | |
KR100331596B1 (ko) | 무선장치 | |
US6963624B1 (en) | Method and apparatus for receiving radio frequency signals | |
JPH02280083A (ja) | 水蒸気量・雨量測定装置 | |
JPS5827699B2 (ja) | 信号送受信方式 | |
US7890081B2 (en) | Direct frequency conversion demodulator and modulator-demodulator | |
GB802008A (en) | Improvements in or relating to frequency stabilisation of continuous wave radar systems | |
JP3732338B2 (ja) | スペクトル拡散方式を用いたレーダ装置 | |
JP2802089B2 (ja) | マイクロ波中継方法 | |
JPH11177348A (ja) | 周波数変換装置および局部発振信号の監視方法 | |
JPH0634702Y2 (ja) | スペクトラムアナライザ | |
KR970006770B1 (ko) | 다중반사파 측정장치 | |
JPH02131629A (ja) | 周波数ダイバーシティ用送受信装置 | |
JP3020642B2 (ja) | 無線受信装置 | |
RU2013008C1 (ru) | Устройство для контроля работоспособности супергетеродинного приемника | |
EP0506727B1 (de) | Verfahren und einrichtung zur zf-signaldetektion eines empfängers |