Design and analysis of a microstrip patch antenna at 7.5 GHz for X-band VSAT application

Mohamad, Sarah Yasmin and Muzamil, Noralya Fatin and Abdul Malek, Norun and S. M. A., Motakabber and Abd Malik, Rafidah and Shuhaimi, Nurain Izzati (2022) Design and analysis of a microstrip patch antenna at 7.5 GHz for X-band VSAT application. IIUM Engineering Journal, 23 (1). pp. 60-67. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

In this paper, a microstrip patch antenna is designed to be used for X-band VSAT application at 7.5 GHz. The antenna is proposed to replace the massive and commonly used parabolic reflector antennas (46.0 inch × 29.3 inch × 13.5 inch (116.84 cm × 74.42 cm × 34.29 cm) with weight of 66.2 kg) in terms of portability due to its compact and lightweight features, with overall dimensions of 19.00 mm × 30.55 mm. The 7.5 GHz frequency is chosen based on the X-band frequency used in Malaysia, as reported by STRIDE. The microstrip patch antenna is first designed and simulated using CST Microwave Studio (CST MWS) and exhibits a good return loss (S11) of -42.09 dB, a bandwidth of 399 MHz, directivity of 7.63 dB and gain of 7.18 dB. The antenna is then fabricated using RT/duroid ® High Frequency 5880 substrate with a dielectric constant of εr = 2.2, loss tangent of δ = 0.0009 and thickness of t = 1.574 mm. Next, the return loss and radiation pattern measurements are carried out to confirm the simulated results. The measurement of the antenna prototype provides a return loss S11 of -30.53 dB, bandwidth of 455 MHz, directivity of 5.51 dB and gain of 3.88 dB.

Item Type:	Article (Journal)
Additional Information:	This research was supported by International Islamic University Malaysia (IIUM) and Ministry of Education Malaysia (MOE) through Fundamental Research Grant Scheme for Research Acculturation of Early Career Researchers FRGS-RACER (RACER19-053-0053) (RACER/1/2019/TK04/UIAM//1).
Uncontrolled Keywords:	microstrip patch antenna; VSAT application; X-band communication
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr Sarah Yasmin Mohamad
Date Deposited:	20 Jan 2022 12:17
Last Modified:	07 Mar 2022 16:27
URI:	http://irep.iium.edu.my/id/eprint/96364

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