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

Mohiuddin HAFIZ
Shinichi KUBOTA
Kentaro KIMOTO
Takamaro KIKKAWA

IEICE TRANSACTIONS on Electronics   Vol.E94-C    No.6    pp.977-984
Publication Date: 2011/06/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E94.C.977
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
UWB-IR,  differential,  Gaussian monocycle pulse,  transmitter,  BPSK,  

Full Text: PDF>>
Buy this Article

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