Microwave power combining FET amplifier

Details Microwave power combining FET amplifier Microwave power combining FET amplifier

1988-04-05

1989-02-07

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including field effect transistor

330286, 330295, H03F 368

Patent

active

048034436

ABSTRACT:
A microwave power combining FET amplifier includes T-type input and output branch circuits 13, 14 for power splitting and combining, and interstage matching circuits 6a, 6b laterally connected at their mid-points a, b by a resistance circuit 15 which absorbs odd propagation mode waves reflected back from the output combiner due to non-uniformities between the post-stage FETs 4a, 4b.

REFERENCES:
patent: 3963993 (1976-06-01), Hoffman et al.
Bingham et al., "A Miniaturized 6.5-16 GHz Monolithic Power Amplifier Module", IEEE 1985 Microwave and Milimeter-Wave Monolithic Circuits Symp. Digest, pp. 38-41.
Takagi et al., "A 1.5 Watt 28 GHz Band FET Amplifier", 1984 IEEE MTT-S Digest, pp. 227-228.

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