Simulation of U Slot Rectangular Microstrip Array Antenna

Electronics and Telecommunication Engineering

Now a day’s wireless communication system antennas are the most important device for creating communication link between source and destination. Microsrtip antennas are used for mobile and other satellite communication application because of their light weight, low power handling capacity and low profile. The modern mobile communication system requires high gain, wide bandwidth and minimal size antennas that are capable of providing better performance over a wide range of frequency spectrum. This requirement leads to the design of microsrtip patch array antenna. This paper proposes the design of 4-Element microstrip patch antenna array which uses corporate feed technique for excitation. Low dielectric constant substrates are generally preferred for maximum radiation. Thus it prefers FR4 as a dielectric substrate. Desired patch antenna design is simulated by using high frequency simulation software and patch antenna is designed as per requirement. Antenna dimensions such as Length (L), Width (W), and substrate dielectric constant and parameters like Return Loss, Gain and impedance are calculated using CAD-FEKO. The antenna has been design to be operated in the range of 8-12GHz. Hence this antenna is highly suitable for X-band applications. For long distance communication we cannot use single element microstrip patch antenna. So for that purpose we are using microstrip patch array antenna. In this paper array stands for geometrical and electrical arrangements of patch elements. As number of patch elements goes on increasing, the performance is improved. A wide operating bandwidth for a single-layer corporate fed rectangular microstrip patch antenna can be obtained by cutting a U-shaped slot on the patch.

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