Open AccessWideband Compact Dual Frequency Dipole Microstrip Patch Antenna
Publication year - 2020
Publication title -
journal of science and technolgy
Language(s) - English
Resource type - Journals
ISSN - 2456-5660
DOI - 10.46243/jst.2020.v5.i6.pp87-92
Subject(s) - microstrip antenna , patch antenna , antenna measurement , coaxial antenna , antenna efficiency , monopole antenna , dipole antenna , antenna factor , standing wave ratio , radiation pattern , materials science , acoustics , optics , physics , antenna (radio) , optoelectronics , telecommunications , computer science
A small size and very thinwideband dipole microstrip patch antenna for dual frequency operation isdesigned and analysed in this paper. The dimension of the proposed antenna is 40×30×1.6 mm3.The proposedantenna is designed using a low cost and reliable FR4 substrate. This FR4 substrate material has a thickness of 1.6mm, dielectric constant of 4.4 and loss tangent of 0.02. The proposed antennaresonates at 2.19 GHz and 2.5 GHzfrequencies with a -10 dB impedance bandwidth of 4.37 GHz, ranging from 1.8 GHz to 6.17 GHz.This shows theproposed antenna bandwidth is increased to 200%. The VSWR of the proposed antenna is less than 2 for entireoperating frequency range. Radiation efficiency is above 70% at both of the resonance frequencies. A very low crosspolarization is found at all resonance frequencies. CST Microwave Studio is used to design and analyse theproposed antenna.