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Design of 4-Way Wilkinson Divider with Waveguide to Stripline Transition Used in The Monopulse Radar Front-end  

Koh, Young-Mok (Department of Electronic Engineering, Kwangwoon University)
Ra, Keuk-Hwan (Department of Electronic Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.11, 2010 , pp. 69-76 More about this Journal
Abstract
From the present paper we researched about the design of 4-Way Wilkinson divider with waveguide to stripline transition which used to split the LO signal with equi-amplitude and equi-phase in the X-Band Monopulse radar RF front-end. The monopulse radar front end operating in the X-Band is composed of 3 waveguide reception mixers which down convert sum, azimuth and elevation signal to IF and one SSB waveguide mixers which generate X-Band test signal. It is required the 4-way divider with low loss, equi amplitude and equiphase splitting the LO signal to provide the LO signal to each mixer consisting RF frontend. In this paper we designed and fabricated the 4-Way Wilkinson divider with waveguide transition to divide the LO signal into equi-amplitude and equi-phase. The fabricated Wilkinson divider have the insertion loss 6.8dB, VSWR 1.06~1.28, and phase balance maximum 4.5degree for each output ports.
Keywords
Wilkinson Divider/Combiner; Equal-split divider/combiner; Waveguide transition; Radar System;
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