Designing and Simulation of a Wide-Band Mono-pulse Slotted Waveguide Antenna Array

Document Type : Original Article

Authors

Abstract

In this paper, a resonant slotted waveguide array antenna with circular boundary has been
designed and simulated for mono-pulse airborne radar applications. The antenna parameters
are:11% bandwidth in X-band (8.6-9.6GHz),VSWR < 2, 38dBi directivity, sidelobes level of -
20dB and 3-dB beam-widths of 2.1degree. To Design this antenna, it is divided into short
sections (sub-arrays) each with a uniform distribution. Corporate waveguide networks are used
to feed sub-arrays for the Taylor distribution. For operating as a mono-pulse antenna, the
structure consists of four quadrants with different feeds. They are combined in a mono-pulse
comparator convenient for airborne applications. This results to sum and difference patterns at
azimuth and elevation. In this work, CST Microwave Studio and HFSS softwares are employed
to simulate the designed antenna. Finally fabrication limitations and the coupling effects have
been taken into account.

Keywords

References

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History

  • Receive Date: 27 December 2015
  • Revise Date: 22 January 2024
  • Accept Date: 19 September 2018
  • Publish Date: 20 April 2016

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