| 星载183GHz分谐波混频器的设计 |
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| 作者姓名： | 张晓阳 于洪喜 徐辉 李正纲 吕游 |
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| 作者单位： | 中国空间技术研究院西安分院,西安710000 |
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| 摘 要： | 文章采用TERATECH公司研制的肖特基二极管，设计了一种星载183GHz分谐波混频器。长9mm、宽0．42mm的混频器电路被放置在腔体中，包括波导过渡到微带的本振和射频频率匹配部分。仿真结果表明本振功率仅为3mw时，变频损耗在173GHz～193GHz频率范围内小于9dB，变频损耗幅度平坦度小于1dB。
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| 关 键 词： | 183GHz 分谐波混频器 混合电路模型 封闭式微带线 |
Design of a Space-borne Sub-harmonic Mixer at 183GHz |
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| Authors: | ZHANG Xiao-yang YU Hong-xi XU Hui LI Zheng-gang LV You |
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| Institution: | (China Academry of Space Technology (Xian), Xian 710000, China) |
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| Abstract: | The design of a fixed-tuned sub-harmonically pumped mixer at 183GHz featuring on an anti-parallel pair of GaAs Schottky barrier diodes fabricated by United Kingdom Teratech Components Limited （TERATECH） is presented. The circuit is about 9 mm long, 0.42mm wide and is mounted in a waveguide block that includes waveguide matching elements at the Local Oscillator （LO） and RF frequencies. The mixer is expected to work efficiently in the band 173 - 193 GHz using 3mW of LO pump power, with a Double Side Band （DSB） conversion gain greater than -9 dB and gain flatness less than ldB. |
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| Keywords: | 183 GHz Sub-harmonic mixer Hybrid circuit model Shielded microstrip |
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