Study, Design and Fabrication of a CPW Fed Compact Monopole Antenna with Circular Polarization for Ultra Wide Band Systems Application

A compact circularly polarized square slot antenna (CPSSA) is presented in this paper, which is appropriate for UWB applications requiring high data rate transmission. This antenna operates across 2.8 GHz to 10.8 GHz with an impedance bandwidth (IBW) of 117.6% for VSWR less than or equal to 2. The a...

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Bibliographic Details
Published inApplied Computational Electromagnetics Society journal Vol. 32; no. 9; p. 749
Main Authors Shokri, Majid, Asiaban, Somayeh, Amiri, Zhaleh
Format Journal Article
LanguageEnglish
Published Pisa River Publishers 01.09.2017
Subjects
Antennas
Bandwidths
Circular polarization
Coplanar waveguides
Corners
Monopole antennas
Radiation
Slits
Slot antennas
Ultrawideband
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Summary:A compact circularly polarized square slot antenna (CPSSA) is presented in this paper, which is appropriate for UWB applications requiring high data rate transmission. This antenna operates across 2.8 GHz to 10.8 GHz with an impedance bandwidth (IBW) of 117.6% for VSWR less than or equal to 2. The antenna consists of a trapezoidal shaped radiation patch which is fed through a coplanar waveguide (CPW) and includes two inverted L-shaped ground arms at the two opposite corners of the slot to excite two orthogonal resonant modes for circular-polarization (CP) radiation. Furthermore, two square slits at the two other opposite corners of the slot are applied to enhance its IBW. The antenna exhibits CP bandwidth of 50.5% across 3.7 GHz-6.2 GHz, which is suitable for WLAN, WiMAX and C-bands. In addition, the antenna has a considerably compact volume of 25×25×0.8 mm3. The measured and simulated results confirm the usefulness of the antenna for practical applications.
ISSN:1054-4887
1943-5711