Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1995-03-17
1998-06-30
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455 32, 455112, H04B 7185, H04B 719, H04B 7195
Patent
active
057747881
ABSTRACT:
A remote ground terminal for generating and transmitting a modulated data signal to a satellite. The remote ground terminal the remote ground terminal includes an indoor unit for generating a modulated data signal having an envelope of constant amplitude, and an outdoor unit including a transmitter module operative to receive the modulated data signal and to frequency multiply and amplify the modulated data signal so as to produce a modulated carrier signal having an envelope of constant amplitude. The transmitter module includes an active FET multiplier operative to frequency multiply the modulated data signal to the frequency of the modulated carrier signal, and a power amplifier operated in the saturation mode, which amplifies the modulated carrier signal to the desired power level. The components constituting the transmitter module are formed on a single integrated circuit.
REFERENCES:
patent: 3789302 (1974-01-01), Rearwin et al.
patent: 4475242 (1984-10-01), Rafal et al.
patent: 4509198 (1985-04-01), Nagatomi
patent: 4592093 (1986-05-01), Ouchi et al.
patent: 4785306 (1988-11-01), Adams
patent: 4932070 (1990-06-01), Waters et al.
patent: 5208829 (1993-05-01), Soleimani et al.
patent: 5309479 (1994-05-01), Cheah
patent: 5376941 (1994-12-01), Fukazawa et al.
patent: 5392450 (1995-02-01), Nossen
patent: 5454009 (1995-09-01), Fruit et al.
patent: 5578972 (1996-11-01), Hadden et al.
patent: 5589837 (1996-12-01), Soleimani et al.
patent: 5606290 (1997-02-01), Pang
patent: 5608761 (1997-03-01), Opas et al.
S. Kumar et al. "Direct Generation of MSK Modulation at Microwave Frequencies", Conference 1981 IEEE MTT-S International Microwave Symposium Digest, Los Angeles, CA, USA.
Yoshiteru Morihiro et al., "A 100 MBit/s Prototype MSK Modem for Satellite Communications,"IEEE Transactions on Communications, vol. COM-27, No. 10 (Oct. 1979).
U.S. Patent Application Serial No. 08/523,309, "Low Cost Very Small Aperture Satellite Terminal," filed Sep. 5, 1995.
Bukhari Nadeem
Hannah Robert
Arthur Gertrude
Denson-Low Wanda
Eisenzopf Reinhard J.
Hughes Electronics
Whelan John T.
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