A 2Gb/s 1.8 pJ/bit Differential BPSK UWB-IR Transmitter Using 65 nm CMOS Technology

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  • HAFIZ Mohiuddin
    Research Institute for Nanodevice and Bio Systems, Hiroshima University
  • KUBOTA Shinichi
    Research Institute for Nanodevice and Bio Systems, Hiroshima University
  • SASAKI Nobuo
    Research Institute for Nanodevice and Bio Systems, Hiroshima University
  • KIMOTO Kentaro
    Research Institute for Nanodevice and Bio Systems, Hiroshima University
  • KIKKAWA Takamaro
    Research Institute for Nanodevice and Bio Systems, Hiroshima University

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Description

A differential BPSK transmitter for ultra-wideband impulse-radio communication has been presented in this paper. The transmitter, developed in a 65nm CMOS process,is simple in design and occupies a core area of 0.0017mm2. The differential Gaussian monocycle pulses (GMP) are generated using some logic blocks and delay elements. The generated GMP, having a center frequency above 5GHz, meets the FCC regulations. Measured results show that the transmitter consumes 1.8pJ/bit to transmit BPSK modulated GMP at a data rate of 2Gb/s. The interface circuitries eliminate the need for external networks for chip to antenna matching. Using an off-chip differential bow-tie antenna, data can easily be transmitted up to a distance of 10cm which made it suitable for low power far field non-coherent applications.

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