The analysis of reactively loaded microstrip antennas by finite difference time domain modelling
Abstract
In recent years, much interest has been shown in the use of printed circuit antennas in mobile satellite and communications terminals at microwave frequencies. Although such antennas have many advantages in weight and profile size over more conventional reflector/horn configurations, they do, however, suffer from an inherently narrow bandwidth. A way of optimizing the bandwidth of such antennas by an electronic tuning technique using a loaded probe mounted within the antenna structure is examined, and the resulting far-field radiation patterns are shown. Simulation results from a 2D finite difference time domain (FDTD) model for a rectangular microstrip antenna loaded with shorting pins are given and compared to results obtained with an actual antenna. It is hoped that this work will result in a design package for the analysis of microstrip patch antenna elements.
- Publication:
-
International Mobile Satellite Conference
- Pub Date:
- 1990
- Bibcode:
- 1990imsc.conf..560H
- Keywords:
-
- Antenna Design;
- Design Analysis;
- Finite Difference Theory;
- Microstrip Antennas;
- Microwave Antennas;
- Mobile Communication Systems;
- Printed Circuits;
- Satellite Communication;
- Antenna Components;
- Antenna Radiation Patterns;
- Far Fields;
- Mathematical Models;
- Communications and Radar