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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Fang Liu, Guo Wang, Li Balfour, E. Agurgo Wang, Jianxun Pu, Youlei Luo, Yong |
| Abstract | The Faraday rotator is an important component used to separate the launching and receiving electromagnetic waves in the transmission line for millimetre wave radar systems. It has lower insertion loss, higher isolation and power capabilities as compared with the waveguide isolators. In this study, a HE11 mode corrugated horn for the microwave performance measurement of a Ka-band Faraday rotator was designed, fabricated and cold tested. The corrugated horn has a high conversion efficiency of above 99% over a bandwidth of 4 GHz. It is short in length, at 44 mm and produces a well-formed linearly polarised HE11 mode. The polarised wave has a well-defined primary lobe and a −26.7 dB side-lobe and also achieves a cross-polarisation of −57.4 dB. The measured microwave reflection coefficient of the corrugated horn was in good agreement with simulation results and the back-to-back transmission coefficient is above −0.7 dB over a bandwidth of 7 GHz for a distance of 2 mm between the horns. Except high conversion efficiency, broad bandwidth, low side-lobes and low cross-polarisation, this corrugated horn is short, simple and suitable for the microwave measurement of Faraday rotator. |
| Starting Page | 75 |
| Ending Page | 80 |
| Page Count | 6 |
| ISSN | 17518725 |
| Volume Number | 11 |
| e-ISSN | 17518733 |
| Issue Number | Issue 1, Jan (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0288 |
| Journal | IET Microwaves, Antennas & Propagation |
| Publisher Date | 2017-01-08 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Back-to-back Transmission Coefficient Circular Waveguide Cross-polarisation Distance 2 Mm Electromagnetic Wave Electromagnetic Wave Reflection Faraday Effect Insertion Loss Ka-band Faraday Rotator Ka-band HE11 Mode Corrugated Horn Antenna Design Ka-band HE11 Mode Corrugated Horn Antenna Microwave Measurement Linearly Polarised HE11 Mode Low Side-lobes Microwave Measurement Technique Microwave Reflection Coefficient Millimetre Wave Radar Millimetre Wave Radar System Radar Equipment Rectangular Waveguide Rectangular-to-circular Waveguide Size 44 Mm System And Application Transmission Line Waveguide And Microwave Transmission Line |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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