Amplifier with radial line divider/combiner

Details Amplifier with radial line divider/combiner Amplifier with radial line divider/combiner

1978-05-12

1980-11-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including distributed parameter-type coupling

330295, 333137, H03F 360

Patent

active

042348544

ABSTRACT:
A power amplifier that divides input power among a plurality of parallel channels through a radial line divider, amplifies the power in each channel with three terminal devices, and combines the amplified power in a radial line combiner to produce an output signal. The radial line divider/combiner includes a radial transmission line having a plurality of sectors symmetrically disposed around the inner radius of a supporting annular substrate. The sectors are connected to respective three terminal devices through microstrip transmission lines, and are isolated from laterally adjacent sectors by thin film isolation resistors.

REFERENCES:
patent: 3582813 (1971-06-01), Hines
patent: 3775694 (1973-11-01), Quine
patent: 3942130 (1976-03-01), Harp
patent: 3958247 (1976-05-01), Bogner et al.
patent: 4091334 (1978-05-01), Sechi
Bearse, "Compact Radial Power Combiner Teams up a Dozen Power GaAs FETS", Microwaves, Oct. 1977, p. 9.

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