3–10 GHz ultra wideband front‐end transceiver in 0.13 μm complementary metal oxide semiconductor for low‐power biomedical radar. Issue 4 (1st July 2014)

• Record Type: Journal Article
• Authors: Wang, Xubo; Dinh, Anh; Teng, Daniel
• Is Part Of: IET circuits, devices & systems. Volume 8:Issue 4(2014)
• Page Start: 272
• Page End: 279
• Publication Date: 2014-07-01
• Subjects: biomedical electronics -- biomedical transducers -- CMOS integrated circuits -- Gaussian processes -- integrated circuit design -- integrated circuit noise -- low-power electronics -- microwave detectors -- microwave integrated circuits -- microwave oscillators -- multiplexing equipment -- pulse modulation -- radar detection -- radar receivers -- radar transmitters -- transceivers -- UHF detectors -- UHF integrated circuits -- UHF oscillators -- ultra wideband radar; ultrawideband front-end radar transceiver -- integrated low-power biomedical radar transceiver -- standard complementary metal oxide semiconductor technology -- UWB radar biomedical sensing application -- UWB band transmitter -- on-chip diplexer -- UWB band receiver -- Gaussian-pulse-modulation signal -- rectangular-pulse-modulation signal -- digitally controlled oscillator -- input power matching network -- low noise amplifier -- human respiration pattern detection -- DCO-type UWB transceiver -- low power UWB radar detection -- bandwidth 3 GHz to 10 GHz -- size 0.13 mum -- power 8 mW -- frequency 10 MHz -- loss 1 dB -- loss -30 dB -- gain 16 dB -- power 12 mW -- size 50 cm; Electronic circuits -- Periodicals; Electronic systems -- Periodicals; 621.381505
• DOI: 10.1049/iet-cds.2013.0331
• Languages: English
• ISSNs: 1751-858X

Abstract

Abstract : A new integrated low‐power, low‐complexity ultra wideband (UWB) transceiver front‐end in standard 130 nm complementary metal oxide semiconductor technology which can be used in UWB radar biomedical sensing applications is proposed in this study. The transceiver comprises of a full UWB band transmitter, an on‐chip diplexer and a full UWB band receiver front‐end. The transmitter generates Gaussian‐pulse‐modulated and rectangular‐pulse‐modulated signals at different carrier frequencies within the designated UWB by using a digitally controlled oscillator. The transmitter consumes an average power of 8 mW at a 10 MHz pulse rate. The on‐chip diplexer has a 1 dB insertion loss and an isolation of −30 dB. Its switch is co‐designed with the receiver's input matching network to optimise the power matching while achieving good noise performance. The receiver low noise amplifier has a 3–10 GHz input matching bandwidth with a power gain of 16 dB. The overall receiver front‐end consumes an average power of 12 mW. The core area of the transceiver circuit is 500 μm by 1100 μm. The experiments show that the proposed radar transceiver can successfully detect a human respiration pattern within 50 cm. This novel design using a DCO‐type UWB transceiver integrated with an on‐chip diplexer demonstrates the use of the low power UWB radar detection in biomedical applications.