Design and Analysis of Super Wideband Antenna for Microwave Applications

In this article, a compact concentric structured monopole patch antenna for super wideband (SWB) application is proposed and investigated. The essential characteristics of the designed antenna are: (i) to attain super-wide bandwidth characteristics, the proposed antenna is emerged from a traditional...

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Main Authors: Warsha Balani, Mrinal Sarvagya, Ajit Samasgikar, Tanweer Ali, Pradeep Kumar
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/2/477
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author Warsha Balani
Mrinal Sarvagya
Ajit Samasgikar
Tanweer Ali
Pradeep Kumar
author_facet Warsha Balani
Mrinal Sarvagya
Ajit Samasgikar
Tanweer Ali
Pradeep Kumar
author_sort Warsha Balani
collection DOAJ
description In this article, a compact concentric structured monopole patch antenna for super wideband (SWB) application is proposed and investigated. The essential characteristics of the designed antenna are: (i) to attain super-wide bandwidth characteristics, the proposed antenna is emerged from a traditional circular monopole antenna and has obtained an impedance bandwidth of 38.9:1 (ii) another important characteristic of the presented antenna is its larger bandwidth dimension ratio (BDR) value of 6596 that is accomplished by augmenting the electrical length of the patch. The electrical dimension of the proposed antenna is <inline-formula><math display="inline"><semantics><mrow><mn>0.18</mn><mi>λ</mi><mo>×</mo><mn>0.16</mn><mi>λ</mi></mrow></semantics></math></inline-formula> (<inline-formula><math display="inline"><semantics><mi>λ</mi></semantics></math></inline-formula> corresponds to the lower end operating frequency). The designed antenna achieves a frequency range from 1.22 to 47.5 GHz with a fractional bandwidth of 190% and exhibiting S<sub>11</sub> < −10 dB in simulation. For validating the simulated outcomes, the antenna model is fabricated and measured. Good conformity is established between measured and simulated results. Measured frequency ranges from 1.25 to 40 GHz with a fractional bandwidth of 188%, BDR of 6523 and S<sub>11</sub> < −10 dB. Even though the presented antenna operates properly over the frequency range from 1.22 to 47.5 GHz, the results of the experiment are measured till 40 GHz because of the high-frequency constraint of the existing Vector Network Analyzer (VNA). The designed SWB antenna has the benefit of good gain, concise dimension, and wide bandwidth above the formerly reported antenna structures. Simulated gain varies from 0.5 to 10.3 dBi and measured gain varies from 0.2 to 9.7 dBi. Frequency domain, as well as time-domain characterization, has been realized to guide the relevance of the proposed antenna in SWB wireless applications. Furthermore, an equivalent circuit model of the proposed antenna is developed, and the response of the circuit is obtained. The presented antenna can be employed in L, S, C, X, Ka, K, Ku, and Q band wireless communication systems.
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spelling doaj.art-13bcaece190944a0b9c38a5195a5154f2023-12-03T12:50:31ZengMDPI AGSensors1424-82202021-01-0121247710.3390/s21020477Design and Analysis of Super Wideband Antenna for Microwave ApplicationsWarsha Balani0Mrinal Sarvagya1Ajit Samasgikar2Tanweer Ali3Pradeep Kumar4School of ECE, REVA University, Bangalore 560064, IndiaSchool of ECE, REVA University, Bangalore 560064, IndiaMMRFIC Technology Private Limited, Bangalore 560016, IndiaDepartment of Electronics & Communication, Manipal institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, IndiaDiscipline of Electrical, Electronic and Computer Engineering, University of KwaZulu-Natal, Durban 4041, South AfricaIn this article, a compact concentric structured monopole patch antenna for super wideband (SWB) application is proposed and investigated. The essential characteristics of the designed antenna are: (i) to attain super-wide bandwidth characteristics, the proposed antenna is emerged from a traditional circular monopole antenna and has obtained an impedance bandwidth of 38.9:1 (ii) another important characteristic of the presented antenna is its larger bandwidth dimension ratio (BDR) value of 6596 that is accomplished by augmenting the electrical length of the patch. The electrical dimension of the proposed antenna is <inline-formula><math display="inline"><semantics><mrow><mn>0.18</mn><mi>λ</mi><mo>×</mo><mn>0.16</mn><mi>λ</mi></mrow></semantics></math></inline-formula> (<inline-formula><math display="inline"><semantics><mi>λ</mi></semantics></math></inline-formula> corresponds to the lower end operating frequency). The designed antenna achieves a frequency range from 1.22 to 47.5 GHz with a fractional bandwidth of 190% and exhibiting S<sub>11</sub> < −10 dB in simulation. For validating the simulated outcomes, the antenna model is fabricated and measured. Good conformity is established between measured and simulated results. Measured frequency ranges from 1.25 to 40 GHz with a fractional bandwidth of 188%, BDR of 6523 and S<sub>11</sub> < −10 dB. Even though the presented antenna operates properly over the frequency range from 1.22 to 47.5 GHz, the results of the experiment are measured till 40 GHz because of the high-frequency constraint of the existing Vector Network Analyzer (VNA). The designed SWB antenna has the benefit of good gain, concise dimension, and wide bandwidth above the formerly reported antenna structures. Simulated gain varies from 0.5 to 10.3 dBi and measured gain varies from 0.2 to 9.7 dBi. Frequency domain, as well as time-domain characterization, has been realized to guide the relevance of the proposed antenna in SWB wireless applications. Furthermore, an equivalent circuit model of the proposed antenna is developed, and the response of the circuit is obtained. The presented antenna can be employed in L, S, C, X, Ka, K, Ku, and Q band wireless communication systems.https://www.mdpi.com/1424-8220/21/2/477bandwidth dimension ratio (BDR)fidelity factor (FF)group delaysuper wideband (SWB)semi-elliptical
spellingShingle Warsha Balani
Mrinal Sarvagya
Ajit Samasgikar
Tanweer Ali
Pradeep Kumar
Design and Analysis of Super Wideband Antenna for Microwave Applications
Sensors
bandwidth dimension ratio (BDR)
fidelity factor (FF)
group delay
super wideband (SWB)
semi-elliptical
title Design and Analysis of Super Wideband Antenna for Microwave Applications
title_full Design and Analysis of Super Wideband Antenna for Microwave Applications
title_fullStr Design and Analysis of Super Wideband Antenna for Microwave Applications
title_full_unstemmed Design and Analysis of Super Wideband Antenna for Microwave Applications
title_short Design and Analysis of Super Wideband Antenna for Microwave Applications
title_sort design and analysis of super wideband antenna for microwave applications
topic bandwidth dimension ratio (BDR)
fidelity factor (FF)
group delay
super wideband (SWB)
semi-elliptical
url https://www.mdpi.com/1424-8220/21/2/477
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