The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2013
Filed:
Nov. 05, 2009
Akira Nagayama, Tokyo, JP;
Yasuhiko Fukuoka, Tokyo, JP;
Akira Nagayama, Tokyo, JP;
Yasuhiko Fukuoka, Tokyo, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
To provide an adder capable of obtaining an addition signal of a plurality of high frequency signals, and also a power combiner, a quadrature modulator, a quadrature demodulator, a power amplifier, a transmitter, and a wireless communicator, each of which uses the adder. Impedances (Zg, Zh) seen from a common output point (P) of a plurality of first impedance circuits () toward respective input terminals () are set so that high frequency currents (Ig, Ih) are approximately zero. An impedance (Zs) seen from a first connection point (P) toward the input terminals () is set so that a high frequency current (Is) is approximately zero. An impedance (Zc) seen from the first connection point (P) toward a circuit () is set so that a high frequency current (Ic) is approximately zero. An impedance (Zm) seen from a second connection point (P) toward a power supply is set so that a high frequency current (Im) is approximately zero.