Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2006-05-16
2006-05-16
Issing, Gregory C. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C343S7000MS
Reexamination Certificate
active
07046195
ABSTRACT:
The present invention is a wide band GaAs microwave monolithic integrated circuit (MMIC) transmit chip that is capable of transmitting linearly or circularly polarized signals when connected to a pair of orthogonal cross-polarized antennas. In an active phased-array antenna environment, this transmit chip is capable of transmitting signals with different scan angles. This invention also contains a digital serial to parallel converter that uses TTL signal to control the phase shifter and attenuator circuits that are required for controlling the polarization and scan angle of the transmitted signal.
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patent: 4806944 (1989-02-01), Jacomb-Hood
patent: 4823136 (1989-04-01), Nathanson et al.
patent: 5568158 (1996-10-01), Gould
patent: 5659322 (1997-08-01), Caille
patent: 5933108 (1999-08-01), Mohuchy
“Ku-Band Transmit Phased Array Antenna for use in FSS Communication Systems,” by S.A. Raby et al., IEEE-MTS-S (2000). (4 pages).
“Communications Systems Group Wins Key DSCS Program,” by Anonymous, ITT Industries System Division News, Sep. 2000. (See p. 3 out of pp. 1-12).
Hunton & Williams LLP
Issing Gregory C.
ITT Manufacturing Enterprises Inc.
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