Design of C-band planar phased array antenna for radar applications
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Author |
M. Anandan, P. Rajeswari, A. Gobinath and N. Suresh Kumar
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e-ISSN |
1819-6608 |
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On Pages
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132-138
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Volume No. |
20
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Issue No. |
3
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Issue Date |
March 21, 2025
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DOI |
https://doi.org/10.59018/022525
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Keywords |
circular micro strips, patch antenna, hexagonal microstrip patch antenna, return loss, directivity, antenna gain, HFSS.
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Abstract
In this research, we utilized Ansoft's HFSS v13, which is a Finite Element Method (FEM) based electromagnetic (EM) simulator, to design and analyze two types of patch antennas: a 1x4 circular microstrip patch antenna and a 1x4 hexagonal microstrip patch antenna, operating at 5 GHz. The circular patch antenna was fabricated on a FR4 substrate with a dielectric constant of 4.4dB and a height of 1.6mm. Various antenna characteristics, such as return loss, radiation pattern, directivity, gain, return loss and radiation efficiency, were investigated. The designed 1x4 hexagonal patch antenna and 1x4 circular patch antenna achieved a bandwidth of 3.79% with return loss values well below -30dB. Additionally, a favorable directivity value of 4.5dBi and a gain of 2.7dBi for the 1x4 circular patch antenna and a gain of 3.9dBi for the 1x4 hexagonal patch antenna were obtained. Due to their C-band architecture, these microstrip patch antennas can be employed in various satellite communication applications, such as transponders.
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