Development of GaAs Gunn Diodes and Their Applications to Frequency Modulated Continuous Wave Radar
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概要
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In this work, we have designed and fabricated the GaAs Gunn diodes for a 94 GHz waveguide voltage controlled oscillator (VCO) which is one of the important parts in a frequency modulated continuous wave (FMCW) radar application. For fabrication of the high power GaAs Gunn diodes, we adopted a graded gap injector which enhances the output power and conversion efficiency by effectively removing the dead-zone. We have measured RF characteristics of the fabricated GaAs Gunn diodes. The operating current, oscillation frequency, and output power of the fabricated GaAs Gunn diodes are presented as a function of the anode diameters. The operating current increases with anode diameters, whereas the oscillation frequency decreases. The higher oscillation frequency was obtained from 60 μm anode diameters of the fabricated Gunn GaAs diodes and higher power was obtained from 68 μm. Also, for application of the 94 GHz FMCW radar system, we have fabricated the 94 GHz waveguide VCO. From the fabricated GaAs Gunn diodes of anode diameter of 60 μm, we have obtained the improved VCO performance.
- 2010-11-25
著者
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Lee Seong-dae
Millimeter-wave Innovation Technology Research Center (mint) Dongguk University
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BAEK Yong-Hyun
Millimeter-Wave INnovation Technology research center (MINT)
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LEE Sang-Jin
Millimeter-Wave INnovation Technology research center (MINT)
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BAEK Tae-Jong
Millimeter-Wave INnovation Technology research center (MINT)
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CHOI Seok-Gyu
Millimeter-Wave INnovation Technology research center (MINT)
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HAN Min
Millimeter-Wave INnovation Technology research center (MINT)
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KO Dong-Sik
Millimeter-Wave INnovation Technology research center (MINT)
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Chae Yeon-sik
Millimeter-wave Innovation Technology Research Center (mint) Dongguk University
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Rhee Jin-koo
Millimeter-wave Innovation Technology Research Center (mint)
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Kim Mi-ra
Millimeter-wave Innovation Technology Research Center (mint) Dongguk University
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Lee Sang-Jin
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Kim Jin-Ho
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Kathalingam Adaikalam
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Rhee Jin-Koo
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Lee Seong-Dae
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Ko Dong-Sik
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Choi Seok-Gyu
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Baek Tae-Jong
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Baek Yong-Hyun
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Chae Yeon-Sik
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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Han Min
Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Seoul 100-715, Korea
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