Communication transceiver having a three-line balun with...

Details Communication transceiver having a three-line balun with... Communication transceiver having a three-line balun with...

2009-08-11

2010-12-21

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S238000

Reexamination Certificate

active

07855613

ABSTRACT:
A balun that includes a first conductor, a second conductor, and a third conductor. The first conductor has a first length. The first conductor also has a first end connected to a first balanced power amplifier output port. The second conductor has substantially the same first length. The second conductor also includes a first end connected to a second balanced power amplifier output port and a second end connected to a second end of the first conductor. The third conductor has substantially the same first length. The third conductor has a first end connected to an antenna port and a second end connected to a ground potential.

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Choonsik Cho, and Gupta, K.C., “A New Design Procedure for Single-Layer and Two-Layer Three-Line Baluns”,IEEE Transactions on Microwave Theory and Techniques, vol. 46, No. 12, Dec. 1998, pp. 2514-2519.
English Language Abstract for JP Patent Application No. JP2002050910 (Feb. 15, 2002).

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