Patent ID: 9503029
Filing Date: 2016-11-22
CPC Classification: H03F,H04B,H04W

Claim Text:
1. A transmitting amplifier comprising one of a carrier amplifier and a peak amplifier as a first amplifier and the other as a second amplifier, the transmitting amplifier comprising: a quarter wavelength transmission line transformer with a dual-coaxial structure such that a center conductor, an inner conductor, and an outer conductor are formed in that order from the center toward the outside, wherein the center conductor and the inner conductor constitute a first coaxial line, the inner conductor and the outer conductor constitute a second coaxial line, the output of the first amplifier is connected to one end of the first and second coaxial lines, an output terminal is connected to the other end of the first and the second coaxial lines, and the other end of the first coaxial line, the output of the second amplifier, and the other end of the second coaxial line are connected, wherein the one end of the first coaxial line is connected to the output of the first amplifier, and the one end of the second coaxial line is connected to the output terminal, wherein at the one end of the first and the second coaxial lines, the center conductor is connected to the output of the first amplifier, the inner conductor is grounded, and the outer conductor is connected to the output terminal, and wherein at the other end of the first and the second coaxial lines, the center conductor is grounded, the inner conductor is connected to the outer conductor, and the outer conductor is connected to the output of the second amplifier.