Spurious radiation suppression in microstrip monopulse antenna

Abstract

Purpose

This paper aims to introduce a new novel microstrip monopulse comparator system to reduce the spurious radiation from the comparator and the feed network for achieving better radiation performance.

Design/methodology/approach

Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system.

Findings

Two substrate layers have been used for the microstrip monopulse comparator system. The feed network and the comparator circuits are on the first substrate layer and the microstrip array antenna is on the second layer. The elements of the array antenna are novel square four-sided narrow rectangular slot antennas built on a conducting plane. A commercially available computational software, CST microwave studio, has been used for the analysis of the system.

Practical implications

The system is proposed for tracking moving targets.

Originality/value

Novel slot radiators are introduced as radiating elements in this paper. The antenna arrangement shields the comparator and the feed network circuits, reducing the spurious radiation significantly.

Citation

Uyguroğlu, R., Hnesh, A.M., Sohail, M. and Oztoprak, A.Y. (2020), "Spurious radiation suppression in microstrip monopulse antenna", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 39 No. 4, pp. 791-799. https://doi.org/10.1108/COMPEL-10-2019-0384