Confocal Imaging System Using High-Speed Sampling Circuit and Ultra-Wideband Slot Antenna
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概要
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A low-power impulse-radio ultra-wideband (IR-UWB) confocal imaging system was developed using a low-power complementary metal oxide semiconductor (CMOS) equivalent time sampling circuit and UWB slot antennas. The proposed imaging system uses a Gaussian monocycle pulse with 3 GHz center frequency to detect a target. The sampling circuit is fabricated by 65 nm CMOS technology, and it can achieve a high sampling rate of 28.2 GS/s, input bandwidth of 3.3 GHz and PLL RMS jitter of 3.44 ps with a low power consumption of 50.7 mW. The UWB slot antenna having a 1.53--4.80 GHz input bandwidth is developed for the confocal imaging. An aluminum target was detected using a confocal imaging algorithm.
- 2011-04-25
著者
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Kikkawa Takamaro
Research Center For Nanodevices And Systems Hiroshima University
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Sasaki Nobuo
Research Center For Nanodevices And Systems Hiroshima University
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Kubota Shinichi
Research Institute For Nanodevice And Bio Systems Hiroshima University
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Toya Akihiro
Research Institute for Nanodevice and Bio Systems, Hiroshima University, Higashihiroshima, Hiroshima 739-8527, Japan
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Toya Akihiro
Research Institute for Nanodevice and Bio Systems, Hiroshima University, 1-4-2 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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Kikkawa Takamaro
Research Center for Nanodevice and Systems (RCNS), Hiroshima University, Higashihiroshima, Hiroshima 739-8527, Japan
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