Design of A Rectangular Patch Antenna using Computer Simulation Technology (CST)
Nik Nurul Azuin Bt Nik Abdul Rahman, ID No.: 2010702499, GROUP: EE2405A
Abstract— A design of a microstrip rectangular patch antenna is presented in this paper. The proposed antenna was simulated using Computer Simulation Technology (CST) CAD Package and design on a microstrip with relative permittivity of 4.6, and substrate and copper thickness of 0.5 mm and 0.035 mm respectively with 4.5 GHz of frequency.
Keywords— CST Microwave Studio, circular array antenna, frequency, microstrip, permittivity, substrate thicknesses, copper thickness, RT/ Duroid 5880 result
INTRODUCTION
Microstip antenna which is also known as the printed antenna is very practical in these days. The characteristics of this antenna are low profile, light weight, low volume and broad bandwidth. An antenna should be low-profile, comfortable and suitable to planar and nonplanar surfaces, simple and inexpensive to manufacture, mechanically robust when mounted on rigid surfaces. When the particular patch shape and mode are selected they are very versatile in terms of resonant frequency, polarization, pattern and impedance. Microstrip single antenna has several advantages and also has several disadvantages such as low gain, narrow bandwidth with low frequency. So, these disadvantages can be overcome by constructing many patch antennas in array configuration. The design used inset feeding method based on quarter wave impedance matching technique. However it does not mention the radiation efficiency, directivity, VSWR and the fabricated size. The design of single and patch array microstrip antennas with microtrip line as feeding method is presented. Quarter-wave transformer is used to match the feeding line to the antennas. The center frequency is determined to operate at 4.5GHz. The patch array antenna was then fabricated on the substrate type RT/Duroid 5880 with dielectric constant of 2.22, substrate
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