Amplifiers – With plural amplifier channels – Redundant amplifier circuits
Patent
1994-09-13
1996-01-02
Mullins, James B.
Amplifiers
With plural amplifier channels
Redundant amplifier circuits
330295, H03F 368
Patent
active
054812232
ABSTRACT:
A bi-directional spatial power combiner grid amplifier has an array of parasitic elements between the lens and the amplifier. The elements have different impedances to radiation of a first polarization (incident radiation) and of a second polarization which is orthogonal to the first (amplified radiation), thereby providing impedance matching to both the input and the output of the grid amplifier. The elements preferably are separated slots or dipoles (some in each direction of polarization), crossed slots or dipoles, or micropatches.
REFERENCES:
patent: 4588962 (1986-05-01), Saito et al.
patent: 5214394 (1993-05-01), Wong
patent: 5329248 (1994-07-01), Izadian
"A Grid Amplifier" IEEE Microwave and Guided Wave Letters, vol. 1, No. 11, Nov. 1991, Moonil Kim, et al., pp. 322-324.
"Bi-Directional Spatial Power Combiner for Millimeter-Wave Solid State Amplifiers" Work Shop on Milimeter Wave Power Generation and Beam Control, Sep. 14, 1993, Sam H. Wong, et al.
McGraw-Hill Dictionary of Scientific and Technical Terms, Fourth Edition, Sybil P. Parker, Editor in Chief, McGraw-Hill Book Company, p. 548 copyright 1989.
Montanye George A.
Mullins James B.
Rockwell International Corporation
Silberberg Charles T.
Streeter Tom
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