An Integrated Sideband-Separating SIS Mixer Based on Waveguide Split Block for 100 GHz Band with 4.0–8.0 GHz IF
An Integrated Sideband-Separating SIS Mixer Based on Waveguide Split Block for 100 GHz Band with 4.0–8.0 GHz IF
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DOI：
10.1023/b:ijim.0000012766.63015.8c
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Asayama;H. Ogawa;T. Noguchi;Kazuji Suzuki;H. Andoh;A. Mizuno
中科院分区：
文献类型：
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作者：
S. Asayama;H. Ogawa;T. Noguchi;Kazuji Suzuki;H. Andoh;A. Mizuno
我们已经开发了一个集成的边带分离SIS混频器的100 GHz频段的波导分裂块的基础上。在本振频率90-110 GHz范围内，中频4.0-8.0 GHz时，接收机噪声温度小于60 K，在100 GHz时，噪声温度最小值约为45 K。在90-110 GHz频率范围内，镜频抑制比大于10 dB。我们已经安装到大坂府立大学的大气臭氧测量系统的侧带分离SIS混合器，并成功地观察到在110 GHz的臭氧频谱在SSB模式。实验结果表明，这种边带分离的SIS混频器在天文观测和大气观测中是非常有用的。
We have developed an integrated sideband-separating SIS mixer for the 100 GHz band based on the waveguide split block. The measured receiver noise temperatures with 4.0–8.0 GHz IF are less than 60 K in the LO frequency range of 90–110 GHz, and a minimum value of around 45 K is achieved at 100 GHz. The image rejection ratios are more than 10 dB in the frequency range of 90–110 GHz. We have installed the sideband-separating SIS mixer into an atmospheric ozone-measuring system at Osaka Prefecture University and successfully observed an ozone spectrum at 110 GHz in SSB mode. This experimental result indicates that the sideband-separating SIS mixer is very useful for astronomical observation as well as atmospheric observation.