Search International and National Patent Collections

1. (WO2015118797) TRANSMISSION APPARATUS AND TRANSMISSION METHOD

Pub. No.:    WO/2015/118797    International Application No.:    PCT/JP2015/000061
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Fri Jan 09 00:59:59 CET 2015
IPC: H03F 1/32
H03F 3/24
H04B 1/04
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: SHIIKUMA, Kazumi
椎熊 一実
Title: TRANSMISSION APPARATUS AND TRANSMISSION METHOD
Abstract:
According to one embodiment of the present invention, a transmission apparatus (1) is provided with: a modulation section (13), which modulates baseband signals (Ia, Qa), and outputs high frequency signals; a high-output amplifier (14) that amplifies the high frequency signals; a distortion compensation section (11) that performs distortion compensation processing with respect to baseband signals (I, Q) using a distortion compensation coefficient for compensating output distortion included in output signals of the high-output amplifier (14); and a filter (12) that attenuates a frequency component having an amplitude of a predetermined value or more due to resonance generated by means of the high-output amplifier (14), said frequency component being among frequency components included in the baseband signals (Ia, Qa) having been subjected to the distortion compensation processing.