Low-cost monopulse antenna using bi-directionally-fed microstrip patch array

2 October 2003

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 39 (20) , 1428-1429
https://doi.org/10.1049/el:20030963

Abstract

A new technique for realising a simple low-cost monopulse antenna using a symmetrical bi-directionally-fed microstrip patch array is described. The antenna is designed and demonstrated at Ka-band. Two squinted beams are radiated from a bi-directionally fed microstrip patch array, and a sum/difference pattern is synthesised using the in-phase and out-of-phase signals achieved using a hybrid ring coupler. The measured return loss is better than 10 dB at the sum and difference port, and the null depth at broadside is more than 30 dB.

Keywords

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