A 0.18-μm CMOS X-Band Shock Wave Generator with an On-Chip Dipole Antenna and a Digitally Programmable Delay Circuit for Pulse Beam-Formability

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概要

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• In this paper, we present a 0.18-µm CMOS fully integrated X-band shock wave generator (SWG) with an on-chip dipole antenna and a digitally programmable delay circuit (DPDC) for pulse beam-formability in short-range and hand-held microwave active imaging applications. This chip includes a SWG, a 5-bit DPDC and an on-chip wide-band meandering dipole antenna. By using an integrated transformer, output pulse of the SWG is sent to the on-chip meandering dipole antenna. The SWG operates based on damping conditions to produce a 0.4-V peak-to-peak (p-p) pulse amplitude at the antenna input terminals in HSPICE simulation. The DPDC is designed to adjust delays of shock-wave outputs for the purpose of steering beams in antenna array systems. The wide-band dipole antenna element designed in the meandering shape is located in the top metal of a 5-metal-layer 0.18-µm CMOS chip. By simulating in Momentum of ADS 2009, the minimum value of antennas return loss, S11, and antennas bandwidth (BW) are -19.37dB and 25.3GHz, respectively. The measured return loss of a stand-alone integrated meandering dipole is from -26dB to -10dB with frequency range of 7.5-12GHz. In measurements of the SWG with the integrated antenna, by using a 20-dB standard gain horn antenna placed at a 38-mm distance from the chips surface, a 1.1-mVp-p shock wave with a 9-11-GHz frequency response is received. A measured 3-ps pulse delay resolution is also obtained. These results prove that our proposed circuit is suitable for the purpose of fully integrated pulse beam-forming system.

• 2011-04-01

著者

• Asada Kunihiro

  The University Of Tokyo

• Mai Khanh

  The University Of Tokyo

• Sasaki Masahiro

  Vlsi Design And Education Center (vdec) The University Of Tokyo

関連論文

• The Characterization of the Variability of Silicon Wafers by Leakage Current Measurements
• A 0.18-μm CMOS X-Band Shock Wave Generator with an On-Chip Dipole Antenna and a Digitally Programmable Delay Circuit for Pulse Beam-Formability
• A 0.25-μm Si-Ge Fully Integrated Pulse Transmitter with On-Chip Loop Antenna Array towards Beam-Formability for Millimeter-Wave Active Imaging
• A 65-nm CMOS Fully Integrated Shock-Wave Antenna Array with On-Chip Jitter and Pulse-Delay Adjustment for Millimeter-Wave Active Imaging Application

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