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http://dx.doi.org/10.5515/KJKIEES.2008.19.12.1435

A Ku-Band Reduced Height Waveguide to Microstrip Mode Converter with a Short Transition Length  

Oh, Hyun-Seok (Department of Radio Science and Engineering, Chungnam National University)
Yeorn, Kyung-Whan (Department of Radio Science and Engineering, Chungnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.12, 2008 , pp. 1435-1444 More about this Journal
Abstract
In this paper, we designed a reduced height waveguide(WG) to microstrip mode converter with a short transition length. The mode converter is composed of a mode converter using E-plane probe and a modified impedance transformer. The mode converter was designed using a probe shorted to top of a 50 ohm ridge WG. The modified impedance transformer was designed to connect the mode converter to the reduced height WG. For wide bandwidth operation, the coupling of the two parts was tuned. The structure of the mode converter was optimized for low loss and wide bandwidth, and the optimized mode converter was fabricated. The performance of the mode converter was extracted using the thru and line S-parameters for back-to-back connections, and the connector loss was calibrated. The mode converter has a right angle structure and short transition length, 7.2 mm. The mode converter shows excellent performances; the insertion loss of 0.12 dB at 15 GHz, and the return loss above 10 dB for the full Ku-band.
Keywords
Mode Converter; Waveguide; Microstrip; Ridge Waveguide; Ku-Band;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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