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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tingting Yuan Xiaoxing Yin Hongxin Zhao Jun Shi Weiye Zhong Qinghui Liu |
| Copyright Year | 2014 |
| Description | Author affiliation: Shanghai Astron. Obs., Shanghai, China (Qinghui Liu) || State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China (Tingting Yuan; Xiaoxing Yin; Hongxin Zhao; Jun Shi; Weiye Zhong) |
| Abstract | This paper presents a well performance noise injector that is used in the Q-Band (35-50GHz) dual beam cryogenically cooled receiver of Shanghai 65m Radio Telescope. A good flatness of coupling over a wider frequency spectrum is required in the noise injector. The design is based on the traditional circular waveguide directional coupler. The noise injector exhibits a -31.5dB mean coupling, flatness below 3dB, and an excellent cross-polarization below -45dB. The simulated results by using finite-element analysis (Ansys HFSS) are presented. |
| Starting Page | 1162 |
| Ending Page | 1164 |
| File Size | 4130750 |
| Page Count | 3 |
| File Format | |
| e-ISBN | 9781479943548 |
| DOI | 10.1109/APCAP.2014.6992719 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-07-26 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Couplings Directional coupler Multi-hole coupling Polarization Noise Rectangular waveguides Receivers Directional couplers |
| Content Type | Text |
| Resource Type | Article |
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