|
|||||
|
|
An Integrated Sideband-Separating SIS Mixer Based on Waveguide Split Block for 100 GHz Band with 4.0–8.0 GHz IF |
|
| Authors: | Shin'ichiro Asayama Hideo Ogawa Takashi Noguchi Kazuji Suzuki Hiroya Andoh and Akira Mizuno |
| Institution: | (1) Department of Earth and Life Sciences, College of Integrated Arts and Sciences, Osaka Prefecture University, 1-1 Gakuen-Cho, Sakai-Cily, Osaka, 599-8531, Japan;(2) Nobeyama Radio Observatory, Japan;(3) Instrument Development Center of School of Science, Nagoya University, Japan;(4) Toyota National College of Technology, Japan;(5) Solar-Terrestrial Environment Laboratory, Nagoya University, Japan |
| Abstract: | 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. |
| Keywords: | sideband-separating mixer SIS mixer ozone spectrum |
| 本文献已被 SpringerLink 等数据库收录！ | |