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http://dx.doi.org/10.5515/KJKIEES.2018.29.4.266

Design of Compact Q-Band Waveguide-to-Microstrip Transition for UAV Millimeter-Wave Radiometer Applications  

Woo, Dong Sik (Department of Aviation Information and Communications Engineering, Kyungwoon University)
Jeong, Jong-Hyeog (Department of Aviation Information and Communications Engineering, Kyungwoon University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.4, 2018 , pp. 266-269 More about this Journal
Abstract
A compact Q-band waveguide-to-microstrip transition for UAV(Unmanned Aerial Vehicle) radiometer applications is presented. The key features of this transition are simplicity, compactness, easy matching, and lower sensitivity to the dimensions and fabrication tolerances. The simple E-plane patch-type design is insensitive to the backshort cavity enclosure and misalignment between the waveguide and microstrip substrate. The primary parameters are optimized using a three-dimensional(3D) electromagnetic simulator(ANSYS HFSS). It exhibited better than 20-dB return loss at mid-band frequencies with less than 1-dB insertion loss for the back-to-back transition, and a return loss better than 15 dB over the frequency range of 36 GHz to 42 GHz.
Keywords
Waveguide Transition; Q-Band; Radiometer; UAV; Millimeter-Wave;
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