Sheikh Dobir Hossain; K. M. Abdus Sobahan; Md. Khalid Hossain; Md. Khalid Hossain Jewel; Rebeka Sultana; Md. Al Amin

A Linear Polarized Coaxial Feeding Dual Band Circular Microstrip Patch Antenna for WLAN Applications

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Author(s)

Sheikh Dobir Hossain ^1,* K. M. Abdus Sobahan ² Md. Khalid Hossain ³ Md. Khalid Hossain Jewel ² Rebeka Sultana ⁴ Md. Al Amin ⁵

1. Dept. of Physics, Jessore University of Science and Technology, Jessore-7408, Bangladesh

2. Dept. of Applied Physics, Electronics & Communication Engineering, Islamic University, Bangladesh

3. Institute of Electronics, Atomic Energy Research Establishment, Savar, Dhaka, Bangladesh

4. Department of Electrical and Electronic Engineering, Shizuoka University, Shizuoka, Japan

5. Dept. of CSE, Jessore University of Science and Technology, Jessore-7408, Bangladesh

* Corresponding author.

DOI: https://doi.org/10.5815/ijwmt.2016.03.06

Received: 14 Jan. 2016 / Revised: 2 Mar. 2016 / Accepted: 7 Apr. 2016 / Published: 8 May 2016

Index Terms

Micro-strip antenna, Cavity model, Dual band antenna, Coaxial probe feed

Abstract

A dual band linear polarized micro-strip antenna is designed and simulated to obtain electronic circuit miniaturization of an antenna in high speed wireless local area networks (IEEE 802.11a standard). The proposed antenna contains a substrate layer (FR-4 lossy) with a dielectric constant of 4.4 and there is a circular patch on the upper layer of the substrate. The coaxial probe feed is used to excite the desired antenna which reduces the spurious radiation and hence obtained good efficiency. It is shown that using cavity model 20% excess bandwidth can be achieved while maintaining the lower size of the antenna. An 'E' shaped slot is introduced in the radiating patch to obtain dual band resonance frequency with maximum current distribution on the surface. Finally the simulated results using Computer Simulation Technology (CST) microwave studio 2009 in this design is compared with manual computation results which are found to be suitable for WLAN applications.

Cite This Paper

Sheikh Dobir Hossain, K. M. Abdus Sobahan, Md. Khalid Hossain, Md. Khalid Hossain Jewel, Rebeka Sultana, Md. Al Amin,"A Linear Polarized Coaxial Feeding Dual Band Circular Microstrip Patch Antenna for WLAN Applications",International Journal of Wireless and Microwave Technologies(IJWMT), Vol.6, No.3, pp.50-60, 2016. DOI: 10.5815/ijwmt.2016.03.06

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International Journal of Wireless and Microwave Technologies (IJWMT)