CMOS impulse radio ultra‐wideband Gaussian pulse generator with variable channel and bandwidth. Issue 2 (1st March 2016)

• Record Type: Journal Article
• Authors: Choi, Jamin; Kwon, Ickjin
• Is Part Of: IET circuits, devices & systems. Volume 10:Issue 2(2016)
• Page Start: 135
• Page End: 139
• Publication Date: 2016-03-01
• Subjects: ultra wideband communication -- CMOS integrated circuits -- pulse generators -- radio transmitters -- delay circuits -- power consumption -- telecommunication power management; CMOS impulse radio -- ultrawideband Gaussian pulse generator -- variable channel -- variable bandwidth -- ultrawideband impulse radio transmitter -- digital intensive circuits -- digitally tunable delay circuit -- pulse-width control circuit -- weighted summing amplifier -- digital switching signal -- Gaussian pulse shaper -- tunable weighting factors -- bandwidth control -- energy consumption; Electronic circuits -- Periodicals; Electronic systems -- Periodicals; 621.381505
• DOI: 10.1049/iet-cds.2015.0229
• Languages: English
• ISSNs: 1751-858X

Abstract

Abstract : A Gaussian pulse generator for an ultra‐wideband impulse radio transmitter is presented. The proposed generator is based on digital intensive circuits, and the centre frequency and bandwidth of a pulse are controlled by a digitally tunable delay circuit and pulse‐width control circuit. The Gaussian pulse is obtained by a weighted summing amplifier that is controlled by a digital switching signal without an additional LC filter. The amplifier uses a Gaussian pulse shaper that has tunable weighting factors with bandwidth control. The energy consumption of the pulse generator is 37.4 pJ/pulse, and sidelobe rejection of 20 dB is achieved without a filter.