논문 해외 국제전문학술지(SCI급) A 27 dB Sidelobe Suppression, 1.12 GHz BW-10dB UWB Pulse Generator With Process Compensation
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2021-08
- 저자명 김주성,이상국,Dzuhri Radityo Utomo,Hafiz Usman Mahmood
- 학술지명 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
- 발행처명 IEEE XPLORE
- 발행국가 해외
- 논문언어 외국어
홈페이지논문 초록 (Abstract)
This brief presents an on-off keying (OOK) driven impulse radio ultra-wideband (IR-UWB) pulse generator (PG) for 3-5 GHz applications, featuring high sidelobe suppression (SLS), large bandwidth ( BW -10dB ), and robustness against process variations. To eliminate the need for a dedicated off-chip pulse-shaping filter, a transistor-sizing-based pulse shaping scheme is adopted to generate a broadband pulse with a triangular envelope, ensuring enhanced SLS with extended signal bandwidth. The proposed process compensating circuit mitigates the effects of process variations on the propagation delay of the logic gates to provide stable pulse timing characteristics. Implemented in 65-nm CMOS process, the prototype PG provides a UWB pulse with an amplitude of 634 mV pp , BW -10dB of 1.12 GHz, and 27 dB SLS, while occupying a total chip area of 964 μm × 669 μm. The proposed PG provides enhanced pulse characteristics with modest energy consumption among the reported works. Based on the proposed figure-of-merit considering the SLS and quality of pulse, the PG in this work shows a competitive FOM of 3.36×10 9 .