An ultra-linear wideband feedforward power amplifier for digital communication systems

Title:	An ultra-linear wideband feedforward power amplifier for digital communication systems
Authors:	Kao, YH Shi, WK 傳播研究所 Institute of Communication Studies
Issue Date:	2001
Abstract:	This Paper describes a ultra-linear wide-band, power amplifier for digital communication The amplifier use the feedforward technique to improve linearity (Original power amplifier P1dB=34dBm). The total power after linearization is about 1W. The third-order intermodulation products (IMD3) to carrier are less than -64dBc and the IMD3 cancellation reaches about 30dB for two-tone test in the 900MHz region. Then new power amplifier can pass N-band CDMAACPR (IS-95 standard) and the operation bandwidth is more than 25Mhz(869similar to894Mhz).
URI:	http://hdl.handle.net/11536/19080
ISBN:	0-7803-7138-0
Journal:	APMC 2001: ASIA-PACIFIC MICROWAVE CONFERENCE, VOLS 1-3, PROCEEDINGS
Begin Page:	1287
End Page:	1290
Appears in Collections:	Conferences Paper