Abstract
Microstrip patch antenna used to send onboard parameters of article to the ground while under operating conditions. The aim of the paper is to design as tacked nearly square microstrip patch antenna design for S band 2 GHz to 4 GHz and study the effect of antenna dimensions Length (L), and substrate parameters relative Dielectric constant (er), substrate thickness (h) on the radiation parameters of Bandwidth and Beam-width. A stacked patch configuration is proposed to increase the narrow bandwidth, radiation efficiency and directivity. The proposed antenna is probe fed on a FR-4 substrate with dielectric constant of 4.4. At resonant frequency 2.42 GHz, antenna parameters like Return Loss, VSWR, Axial Ratio and Radiation pattern are verify and simulated on CST Microwave Studio by CST student edition.
Highlights
ThisMicrostrip antenna has been one of the mostinnovative topics in antenna theory and design in recent years, and is increasingly finding application in a wide range of modern microwave systems [6]
The graph shows the maximumreturn loss of -16.207dB at the resonant frequency 2.42GHz
It can be observed from the resultthat the voltage standing wave ratio (VSWR) value is less than 2 for whole operating band, which considered as suitable for the antenna
Summary
ThisMicrostrip antenna has been one of the mostinnovative topics in antenna theory and design in recent years, and is increasingly finding application in a wide range of modern microwave systems [6]. Microstrip antennas (MSA) offer many attractive features such as low weight, small size, ease of fabrication, ease of integration with Microwave Integrated Circuits (MIC) and can be made conformal to host surface. They suffer from low gain, narrow bandwidth, low efficiency, and low power handling capability [7]-[9]. In some applications, such as in government security systems, narrow bandwidths are desirable [7]. This proposed antenna has square patch used. It is very easy to analyze using both the transmission-line and cavity models, which are most accurate for thin substrates [7]
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