Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1981-05-19
1983-07-05
Bookbinder, Marc E.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
333 26, H04B 126
Patent
active
043922503
ABSTRACT:
Microwave circuit layout structure is disclosed for a diode mixer bridge. The circuit layout structure is compact and symmetric, and enables short orthogonal equal length leads from a diode ring quad mixer bridge. The configuration also affords equal path lengths through the diodes to provide precise 180.degree. phase differential image frequency cancellation. The structure also affords precise and consistent mounting of the mixer bridge, to further improve performance.
REFERENCES:
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patent: 4293956 (1981-10-01), Altstatt
Julius Lange, "Interdigitated Strip-Line Quadrature Hybrid", 1969 International Microwave Symposium, Dallas, Texas, May 5-7, IEEE Cat. No. 69 c 6, pp. 10-13.
Ben R. Hallford, "Trace Phase States to Check Mixer Designs", Microwaves, Jun. 1980, pp. 52-60.
L. E. Dickens and D. W. Maki, "A New `Phase-Typed` Image Enhanced Mixer", 1975 IEEE MTT Symposium, pp. 149-151.
George L. Matthaei et al., "Microwave Filters, Impedance-Matching Networks, and Coupling Structures", New York, McGraw-Hill, 1964, pp. 809-812.
Bookbinder Marc E.
Greenberg Howard R.
Lutz Bruce C.
Rockwell International Corporation
Taken Michael E.
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