Divider/combiner

Details Divider/combiner Divider/combiner

1997-03-24

1999-12-21

Gensler, Paul

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

333127, 333128, H03F 368, H01P 512

Patent

active

060054425

ABSTRACT:
A divider/combiner circuit for dividing or combining radio frequency power applicable to communication units utilizing a microwave band or the like. The divider/combiner circuit includes first, second and third nodes with a first transmission line electrically coupled to the first node and to the second node. In addition, the divider/combiner circuit includes a second transmission line electrically coupled to the first node and to the third node. An adjusting circuit is electrically coupled to the second node and to the third node. The adjusting circuit includes a resistance and a phase shifter. The resistance is located between points having substantially equal phases with respect to the second node and to the third node, respectively.

REFERENCES:
patent: 4547745 (1985-10-01), Freitag et al.
patent: 4875024 (1989-10-01), Roberts
patent: 4901042 (1990-02-01), Terakawa et al.
patent: 5126704 (1992-06-01), Dittmer et al.
patent: 5162756 (1992-11-01), Taniguchi et al.
Webb, Power Divider/Combiners:Small Size, Big Specs, Microwaves, pp. 67-74, vol. 20, No. 12, Nov. 1981.
I. Yoshida et al., MWE '95 Microwave Workshop Digest, pp. 125-130, 1995, "UHF-Band Si Power MOSFET Amplifier For Mobile Communication."
Office Action dated Nov. 19, 1998 related to Japanese Patent Application No. 9-70179.

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