상세정보
학술지
A 2.6-GHz Partial-Envelope Delta-Sigma-Digitized Carrier-Bursting Transmitter
- 발행일
- 202007
- 출처
- IEEE Microwave and Wireless Components Letters, v.30 no.7, pp.697-700
- ISSN
- 1531-1309
- 출판사
- IEEE
- 협약과제
- 18HF1500, 5G 이동통신용 밀리미터파(40GHz 이하) 빔포밍 부품 개발, 김광선
- 초록
- This letter presents the implementation and measurement results of a partially digitized envelope-based carrier-bursting transmitter operating at 2.6 GHz. The transmitter consists of two chips, in this case: a partial-envelope delta-sigma modulator (PEDSM) and an up-conversion mixer with 130-nm CMOS technology. A second-order continuous-time delta-sigma modulator with a 622-MHz sampling clock is designed as an envelope digitizer in the PEDSM. With a long-term evolution signal with a peak-to-average power ratio of 8.7 dB, the fabricated transmitter showed a coding efficiency of 90.4% and an error vector magnitude (EVM) of 3.44% for a PEDSM threshold level of 1/3.
- KSP 제안 키워드
- 2.6 GHz, CMOS Technology, Coding efficiency, Continuous-time delta-sigma modulator, Long term Evolution(LTE), Peak-to-Average-Power-Ratio(PAPR), Sampling clock, error vector magnitude, measurement results, second-order, threshold level