JPS55134507A - Frequency converter - Google Patents
Frequency converterInfo
- Publication number
- JPS55134507A JPS55134507A JP4133779A JP4133779A JPS55134507A JP S55134507 A JPS55134507 A JP S55134507A JP 4133779 A JP4133779 A JP 4133779A JP 4133779 A JP4133779 A JP 4133779A JP S55134507 A JPS55134507 A JP S55134507A
- Authority
- JP
- Japan
- Prior art keywords
- hybrids
- frequency converter
- signal
- outputs
- extending over
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1408—Balanced arrangements with diodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PURPOSE:To improve input VSWR and mutual isolation extending over a wide range by connecting 90 deg. hybrids together as fixed. CONSTITUTION:A local oscillation signal and input signal are applied to inputs 35 and 36 of 90 deg. hybrids 20 and 21, and resistive terminators 24 and 25 are connected to the other terminals. Further, a single-balance type frequency converter is formed of 90 deg. hybrids 22 and 23, diodes 26 and 27, and 28 and 29, etc. Both outputs of hybrids 20 and 21 are connected to hybrids 22 and 23. The outputs of the above-mentioned diodes are out of phase and an IF signal is output by way of LPF34. In the circuit like this, reflected signals from respective hybrids are absorbed by resistive terminators and never returned to the other inputs mutually, so that each input VSWR and mutual isolation can be improved extending over a broad band.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4133779A JPS55134507A (en) | 1979-04-05 | 1979-04-05 | Frequency converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4133779A JPS55134507A (en) | 1979-04-05 | 1979-04-05 | Frequency converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134507A true JPS55134507A (en) | 1980-10-20 |
Family
ID=12605697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4133779A Pending JPS55134507A (en) | 1979-04-05 | 1979-04-05 | Frequency converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134507A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4355420A (en) * | 1979-12-03 | 1982-10-19 | Nippon Electric Co., Ltd. | Frequency converter capable of eliminating local power leak |
US4603435A (en) * | 1984-08-20 | 1986-07-29 | Gte Laboratories Incorporated | Microwave mixer apparatus |
US4603436A (en) * | 1984-08-20 | 1986-07-29 | Gte Laboratories Incorporated | Microwave double balanced mixer |
US4864644A (en) * | 1986-10-17 | 1989-09-05 | Matsushita Electric Industrial Co., Ltd. | VHF-UHF mixer having a balun |
US5339457A (en) * | 1988-12-09 | 1994-08-16 | Canon Kabushiki Kaisha | Superconductive electromagnetic wave mixer and superconductive electromagnetic wave mixing apparatus employing the same |
-
1979
- 1979-04-05 JP JP4133779A patent/JPS55134507A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4355420A (en) * | 1979-12-03 | 1982-10-19 | Nippon Electric Co., Ltd. | Frequency converter capable of eliminating local power leak |
US4603435A (en) * | 1984-08-20 | 1986-07-29 | Gte Laboratories Incorporated | Microwave mixer apparatus |
US4603436A (en) * | 1984-08-20 | 1986-07-29 | Gte Laboratories Incorporated | Microwave double balanced mixer |
US4864644A (en) * | 1986-10-17 | 1989-09-05 | Matsushita Electric Industrial Co., Ltd. | VHF-UHF mixer having a balun |
US5339457A (en) * | 1988-12-09 | 1994-08-16 | Canon Kabushiki Kaisha | Superconductive electromagnetic wave mixer and superconductive electromagnetic wave mixing apparatus employing the same |
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