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:
Feb. 26, 2019
Filed:
Dec. 29, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
Embodiments of the present invention provide a transmitter. The transmitter includes: a dual-band input circuit including at least two band input ends, performing DPD processing on an input baseband signal, and outputting the baseband signal; a modulo circuit, performing modulo processing on the input baseband signal, and outputting the baseband signal; a signal decomposition circuit, receiving the baseband signal input by the dual-band input circuit and a baseband signal modulus value input by the modulo circuit, and performing decomposition to obtain multiple decomposed signals; a modulation circuit, receiving the multiple decomposed signals, performing processing, modulating two signals obtained after processing to corresponding working frequencies, and outputting the two signals to a dual-band power amplifier. In comparison with a single-input dual-band power amplifier, when a dual-input dual-band power amplifier transmits signals in two bands concurrently, overall transmission efficiency of a dual-band transmitter can be obviously improved.