Amplifiers – With semiconductor amplifying device – Including plural amplifier channels
Patent
1992-10-23
1994-07-12
Pascal, Robert J.
Amplifiers
With semiconductor amplifying device
Including plural amplifier channels
330286, 330 54, H03F 368
Patent
active
053292480
ABSTRACT:
A microwave power divider/combiner (10) comprises a preamplifier (12), a first microwave lens (14), a plurality of amplifiers (16), and a second microwave lens (18). The preamplifier (12) is coupled to receive a microwave source signal (20) and amplify it. The output of the preamplifier (12) feeds the first lens (14). The first lens (14) divides the signal received on its input into a plurality of signals of equal amplitude and phase. Each output of the first lens (14) is then provided to an input of a respective amplifier (16) from the plurality of amplifiers (16). The amplifiers (16) amplify the divided signals and output them to the second lens (18). The second lens (18) has a plurality of inputs and recombines the signals on the inputs into a single higher level signal at an output (22). The present invention also provides a compact configuration for the divider/combiner (10) of the present invention with the lenses (14, 18) mounted on top of each other separated by a mounting block (26). The amplifiers (16) are mounted on a side of the mounting block (26) proximate the output of the first lens (14) and the input on the second lens (18), between the first and second lenses (14, 18) to reduce coupling losses.
REFERENCES:
patent: 4381509 (1983-04-01), Rotman et al.
patent: 4588962 (1986-05-01), Saito et al.
patent: 4736463 (1988-04-01), Chavez
patent: 5128687 (1992-07-01), Fay
Wide Angle Microwave Lens for Line Source Applications, Rotman et al., IEEE Transactions on Antennas and Propagation, Nov. 1966, pp. 23-31.
Dinh Tan
Loral Aerospace Corp.
Pascal Robert J.
Radlo Edward J.
Raubvogel Amir H.
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