Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1983-08-11
1985-05-07
Bookbinder, Marc E.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
455328, H04B 126
Patent
active
045162719
ABSTRACT:
The mixer comprises a microelectronic circuit composed of one or a number of active electronic elements having a nonlinear characteristic and carried on a substrate, the elements being supplied by waveguide lines placed on the substrate. The microelectronic circuit is fixed within a closed casing and connected to terminals placed on the casing in order to mix an incident wave S having a frequency F.sub.S applied to a first terminal of the casing with a mixing wave OL having a frequency F.sub.L applied to a second terminal of the casing and in order to restitute a mixed wave OR having a frequency F.sub.O on a third terminal. The cavity formed by the internal space of the casing is tuned to a "sum" frequency representing the sum of the frequency of the mixing wave F.sub.L and of the frequency of the incident wave F.sub.S.
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patent: 3652941 (1972-03-01), Neuf
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Technical Digest of IEEE International Electron Devices Meeting, E. J. Denlinger et al.-"High Performance Mixer Diode", col. 1, Lines 35-40, FIG. 2, Dec. 6-8, 1976, pp. 87-89.
Digest of Technical Papers of 1971 IEEE-GMTT International Microwave Symposium, May 16-19, 1971, pp. 16-17, New York (USA)-"An Integrated X-Band, Image and Sum Frequency Enhanced Mixer with 1GHz IF", p. 16, col. 1, Line 56-col. 2, Line 18.
IEEE Trans. on Consumer Electronics, vol. CE-27, No. 3, Aug. 1981, pp. 410-415, New York, (USA)-"An MDS Downconverter of Thick-Film MIC for 26GHz Pay TV"-Uwamo et al.-FIGS. 6, 7, 11.
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"Microwave Low Noise Mixers with Image and Sum Frequency Enhancement"-Bates, Jul. 1978-Conference on Radio Receivers and Associated Systems, Southampton, England, pp. 317-322.
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"Thomson-CSF"
Bookbinder Marc E.
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