Parametrical Analysis of Symmetrical Double U-Slots Micro Strip Circular Patch Antenna for Wireless Communication Devices

Arshad Wahab; Waleed Ahmad; Muhammad Kashif Khattak; Aamir Hayyat

Authors

Arshad Wahab Department of Electrical Engineering, University of Poonch Rawalakot, AJK, Pakistan
Waleed Ahmad Department of Electrical Engineering, University of Poonch Rawalakot, AJK, Pakistan
Muhammad Kashif Khattak Department of Computer Science and IT, University of Poonch Rawalakot, AJK, Pakistan https://orcid.org/0000-0002-6095-4557
Aamir Hayyat Department of Computer Science and IT, University of Poonch Rawalakot, AJK, Pakistan

Keywords:

Micro Strip Patch, Return Loss, Radiation Efficiency, WLAN, Wi-Fi, Multiband.

Abstract

The advancement in telecommunication demands antennas having wide bandwidth, compact size, and high performance. On the other hand, the microstrip antenna has a narrow bandwidth and low radiation efficiency. Recently, a number of researches were made to improve the bandwidth of microstrip antenna. The proposed antenna is based on to studied parametrically the microstrip antenna and their effect has been analyzed in terms of return loss, radiation patterns, and current distribution on the surface of the patch. The parameters such as the radius of the patch, lengths and widths of the slots, and feed point location are changed to different values using CST Microwave Studio. In this article double U-slotted in circular patch microstrip antenna are designed. The circular patch of radius 18mm and thickness of 1mm, FR4 substrate of permittivity of 4.3, dimension of (40 X 50) mm2, the thickness of 3.6mm, and coaxial probe are used to design the proposed antenna. The designed antenna has resonance frequencies at 3.2GHz, 5.8GHz, and 6GHz and the simulated gains are 3.72dBi, 7.67dBi, and 8.02dBi respectively. The VSWR at the resonance frequencies 3.2GHz, 5.7GHz, 5.8GHz, 5.94GHz, 6GHz, and 6.14GHz are 1.50, 1.38, 1.42, 1.60, 1.34 and 1.61. The VSWR is less than 2 at all resonance frequencies which shows good impedance matching. The return loss at the resonance frequencies of 5.8GHz and 3.24GHz is -19.04dB and -16.38dB respectively. The antenna has a bandwidth of 0.68GHz ranging from 5.52GHz to 6.18GHz. The proposed antenna is suitable for many wireless applications such as WLAN (5.15 – 5.35 & 5.75 – 5.8) GHz, Wi-Fi (5.15 – 5.82) GHz, and RFID (5.725 – 5.875) GHz.

Author Biography

Muhammad Kashif Khattak, Department of Computer Science and IT, University of Poonch Rawalakot, AJK, Pakistan

Assistant Professor

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