Optimization of Planar Radiator with Slot and Shorting Pin for Pattern Reconfigurable Antenna

Authors

  • Dwi Andi Nurmantris
  • Heroe Wijanto
  • Bambang Setia Nugroho

Abstract

Another design of the pattern reconfigurable antenna has been proposed. The antenna is formed using a circular planar antenna base structure where the antenna is feed by coaxial probe. For matching impedance purpose, two elements namely shorting pin and slot are attached close together to feeding point. At the edge of the radiator, 24 edge shorting pins were installed intended to adjust the antenna radiation pattern. In designing this antenna, Genetic algorithms (GA) are used to optimize three variables that greatly affect operating frequency, return loss and antenna radiation pattern that are radius of radiator, length of slot, and state of 24 edge shorting pins. This procedure produces antenna design that is directed towards 45o in the elevation plane and can be switched across all direction in the azimuth plane. Optimization, simulation, and measurement data are presented completely for validation purposes.

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Published

2020-04-09

Issue

Section

Articles