Patent ID: 6236272
Filing Date: 2001-05-22
Classification: H01P,H03F

Abstract:
A power combiner, comprising:even-numbered power amplifiers;a plurality of series-connected branch circuits for respectively distributing input power to said even-numbered power amplifiers;a plurality of series-connected combiners for combining respective output power of said even-numbered power amplifiers;open stubs respectively having electric lengths of .lambda./12 (where .lambda.=wavelength of a fundamental wave), which are provided at matching terminators of said plurality of combiners; andinductors coupled in parallel with said open stubs respectively;wherein said even-numbered power amplifiers are connected by transmission lines so that in the case of all combinations in which each of said combinations consists of a plurality of pairs of said power amplifiers with electric lengths of said transmission lines enabling connection between said power amplifiers of each pair of said plurality of pairs of said power amplifiers to one another being equalized, said electric lengths at which said combinations are established, take .lambda./2i (where i=positive integer).