콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A NEW DIGITAL PREDISTORTION TECHNIQUE FOR ANALOG BEAMFORMING SYSTEMS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-01
- 저자명 PARK, CW (PARK, CHAN-WON),KIM, JH (KIM, JI-HOON),JEONG, ER (JEONG, EUI-RIM)공동(교신)
- 학술지명 IEICE ELECTRONICS EXPRESS
- 발행처명 IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
논문 초록 (Abstract)
A digital predistortion (DPD) technique to linearize multiple power amplifiers (PAs) in analog beamforming systems is proposed. The analog beamforming system considered in this paper has one digital chain and multiple PAs/antennas controlled by phase shifters. Due to the system configuration, a single DPD should linearize the multiple PAs. To design the DPD, this paper introduces a cost function, squares of the sum of errors for all the PAs.The DPD solution minimizing the cost function is found by a recursive least squares (RLS) algorithm. Experimental results with commercial PAs show that the proposed DPD can effectively linearize multiple PAs.
