Abstract
Abstract Microstrip patch antennas represent one family of compact antennas that offer a conformal nature and the capability of ready integration with communication system’s printed circuitry. In this paper, a 5.4 GHz circular polarization microstrip antenna is designed and simulated. The selected microstrip antenna is a dual-fed circular polarized microstrip antenna. The antenna consists of miniaturization square patch and 3dB hybrid coupler. The array antenna can excite both right-hand circular polarization (RHCP) and left-hand circular polarization (LHCP) with using hybrid coupler is directly connected to microstrip antenna to get circular polarization. Circular polarization is obtained when two orthogonal modes are equally excited with 90° phase difference between them. Circular polarization is important because regardless of the receiver orientation, it will always be receiving a component of the signal. This is due to the resulting wave having an angular variation. Simulation results shows that the designed antenna characteristic is suitable for WLAN/HIPERLAN wireless applications.
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