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| Content Provider | IET Digital Library |
|---|---|
| Author | Hongjian, Wang Qiyan, Hao Min, Yi Dehai, Zhang Xingchao, Dong Yang, Liu Xue, Chen |
| Abstract | This study presents a design of a tri-band dual polarisation common aperture feed horn used for the radiometer. The proposed feeding system is made up of a corrugated horn, an orthomode transducer (OMT) and two pairs of a high-pass filter (HPF) and a band-pass filter (BPF). The broadband profiled corrugated horn loaded with teeth (rings) is adopted as the feed of the radiometer. Wideband finline OMT is developed to realise a bandwidth ratio in excess of 2:1. Two different HPFs and BPFs are employed to block and pass waves of different frequencies. The feeding structure is then simulated, fabricated and tested. The measured results show that the radiation patterns possess good symmetry at all three working frequencies of interest (18.7, 23.8 and 37 GHz). Furthermore, the cross-polarisation levels are below −23 dB and voltage standing-wave ratios are lower than 1.5 throughout all working bands. |
| Starting Page | 1765 |
| Ending Page | 1770 |
| Page Count | 6 |
| ISSN | 17518725 |
| Volume Number | 12 |
| e-ISSN | 17518733 |
| Issue Number | Issue 11, Sep (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/12/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5158 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2018-07-16 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Accessory Antenna Feeding System Antenna Feeds Antenna Radiation Pattern Aperture Antenna Band-pass Filter Broadband Profiled Corrugated Horn Corrugated Horn Cross-polarisation Levels Electromagnetic Wave Polarisation Feeding Structure Frequency 18.7 GHz Frequency 23.8 GHz Frequency 37.0 GHz High-pass Filter Horn Antenna Millimetre Wave Antenna Multifrequency Antenna Multifrequency Dual Polarisation Radiometer Common Aperture Antenna Feed Noise Figure -23.0 DB Orthomode Transducer Radiometers Single Antenna Transducers Tri-band Dual Polarisation Common Aperture Feed Horn Voltage Standing-wave Ratios Wideband Finline OMT Working Band |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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