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ISSN: 2375-3943

American Journal of Computation, Communication and Control

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A Modified Compact Microstrip-Fed Slot Antenna with Desired WLAN Band-Notched Characteristic

American Journal of Computation, Communication and Control
Vol.1 , No. 3, Publication Date: Sep. 16, 2014, Page: 56-60

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Authors

[1]	Nasser Ojaroudi, Department of Electrical Engineering, Germi Branch, Islamic Azad University, Germi, Iran.

Abstract

In this paper, a different method for designing a novel and compact microstrip-fed slot antenna with band-notched characteristic for UWB application is proposed. In the proposed antenna, a pair of protruded T-shaped strips inside an extra rectangular slot in the ground plane is used to create an additional resonance at higher frequencies. By obtaining this resonance (10.7 GHz), the usable upper frequency of the antenna is extended from 10 GHz to 13.2 GHz which provides a wide usable fractional bandwidth of more than 125%. Additionally, by using a square-ring radiating stub with a protruded H-shaped strip inside the ring, a desired frequency band-stop performance has been obtained. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range. The proposed antenna can operate from 2.95 to 13.2 GHz for VSWR < 2 with a rejection band around of 5.1-6 GHz to suppress any interference from wireless local area network (WLAN) systems. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range.

Keywords

Band-Notched Function, Bandwidth Enhancement, Slot Antenna, UWB Application

Reference

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