Dielectric Cover Layer Thickness Effect on Circular Microstrip Antenna Parameters

This paper studies the effect of dielectric cover layer thickness on circular microstrip patch antenna parameters such as gain, bandwidth, beam-width, radiation patterns, return loss and VSWR. The proposed antenna is designed with 2.4GHz frequency in S-Band region. This operating frequency useful in ISM band applications. Circular patch antenna is designed with cavity model analysis and simulated using HFSS simulation software (Electromagnetic simulator). The coaxial probe fed is used for antenna design. In this paper the effect of dielectric cover layer on antenna parameters studied experimentally and comparing their performance characteristics. The simulation results shows that the antenna without dielectric cover layer obtained gain is 4.11dB and antenna with dielectric cover the gain is reduced to 2.87dB to 5.88dB based on thickness of the dielectric cover layer. The antenna bandwidth obtained without dielectric cover is 3% and with dielectric cover its bandwidth is reduced from 0.012GHz to 0.052GHz based on thickness of the cover layer effect. Similarly other parameters are investigated and compared. This proposed circular patch antenna is used in wireless and Wi-Fi applications.

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Circular Patch Antenna with Defected Ground for UWB Communication with WLAN Band Rejection

Defence Science Journal ◽

10.14429/dsj.66.9329 ◽

2016 ◽

Vol 66 (2) ◽

pp. 162 ◽

Cited By ~ 6

Author(s):

K. G. Jangid ◽

Ajay Tiwari ◽

Vijay Sharma ◽

V.S. Kulhar ◽

V.K. Saxena ◽

...

Keyword(s):

Patch Antenna ◽

Wireless Local Area Network ◽

Local Area Network ◽

Coplanar Waveguide ◽

Local Area ◽

Simulation Software ◽

Area Network ◽

Circular Patch ◽

Circular Patch Antenna ◽

And Performance

<p>The design and performance of coplanar waveguide fed modified circular patch antenna for possible application in ultra wideband communication systems with band rejection for upper wireless local area network band (5.15 GHz - 5.85 GHz) is reported. This antenna is designed on glass epoxy FR4 substrate having size 30 mm × 20 mm × 1.59 mm. The coplanar waveguide fed circular patch antenna is modified by introducing L shaped slits in ground plane and U shaped slot in patch and performance analysis of antenna is simulated by applying CST microwave studio simulation software. Different designed antennas were tested with available experimental facilities. The developed end product shows a nice matching with feed network at frequencies 2.62 GHz, 3.94 GHz and 8.50 GHz and provides 10.38 GHz (3.33 GHz - 13.71 GHz) impedance bandwidth with wireless local area network 5.5 GHz (4.74 GHz - 6.15 GHz) band rejection. The co and cross polar patterns in elevation and azimuth planes at two frequencies namely 2.62 GHz and 3.94 GHz are obtained which dictate that co-polar patterns are significantly better than cross polar patterns. The simulated peak gain of antenna is close to 3.86 dBi and gain variation with frequency shows a sharp gain decrease in the frequency range 4.74 GHz to 6.15 GHz.</p><p> </p>

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Analysis of Performance on Circular Patch Antenna Based on Different Feeding Techniques

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.1.28230 ◽

2018 ◽

Vol 7 (4.1) ◽

pp. 81

Author(s):

Saidatul Hamidah Abd Hamid ◽

Goh Chin Hock ◽

M. T. Ali

Keyword(s):

Patch Antenna ◽

Beam Width ◽

Side Lobe ◽

Side Lobe Level ◽

Patch Antennas ◽

Circular Patch ◽

Circular Patch Antenna ◽

Feeding Methods ◽

Coaxial Feed ◽

Feeding Techniques

This paper presents a simulation and analysis of a circular patch antenna with different feeding techniques. The objectives of this analysis are to design the microstrip circular patch antennas using five types of feedings techniques which are stepped feed, inset feed, coaxial feed, aperture coupled feed, and proximity feed, to analyze and compares the performance of the antenna design. Performance characteristics of the antenna such as return loss S11 parameter <-10dB, directivity, gain, bandwidth, side lobe level, beam width, and voltage standing wave ratio (VSWR) parameters of each of the feeding methods designs are obtained and compared.

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