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A high performance UWB antenna design for microwave imaging system.

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Title: A high performance UWB antenna design for microwave imaging system.
Authors: Mahmud, M. Z.1, Islam, M. T.1, Samsuzzaman, M.2
Source: Microwave & Optical Technology Letters. Aug2016, Vol. 58 Issue 8, p1824-1831. 8p.
Subjects: Ultra-wideband antennas, Performance of electronics, Microwave imaging, Antenna radiation patterns, Simulation methods & models
Abstract: ABSTRACT In this paper, a new design of ultra-wideband (UWB) antenna is reported for a microwave imaging system aimed to cover the UWB bandwidth from 3.1 to 10.6 GHz. The structure has a very simple Hibiscus petal pattern patch with tapered microstrip fed a line and partial trapezoid ground plane. The gap between the Hibiscus petal pattern patch and partial ground of the antenna are optimized to achieve wide impedance bandwidth. Results show that the antenna has a fractional bandwidth of about 120% from 3.04 to 11 GHz with S11 < −10 dB with stable omnidirectional radiation pattern. The average gain of proposed prototype is 5.1 dBi and the radiation efficiency is about 85% on an average over the bandwidth. The fidelity factor for face to face is 0.8469 and for side by side is 0.9232 which represent the lower distortion of signal. The characteristics of proposed antenna are successfully simulated, prototyped and measured. Fairly good agreements between the simulations and measurements have been achieved. The reported antenna has a better impedance match and mutual coupling that provides a practical approach to realize the antenna for the UWB microwave imaging system. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1824-1831, 2016 [ABSTRACT FROM AUTHOR]
Copyright of Microwave & Optical Technology Letters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A high performance UWB antenna design for microwave imaging system.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mahmud%2C+M%2E+Z%2E%22&quot;&gt;Mahmud, M. Z.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Islam%2C+M%2E+T%2E%22&quot;&gt;Islam, M. T.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Samsuzzaman%2C+M%2E%22&quot;&gt;Samsuzzaman, M.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt;
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  Data: ABSTRACT In this paper, a new design of ultra-wideband (UWB) antenna is reported for a microwave imaging system aimed to cover the UWB bandwidth from 3.1 to 10.6 GHz. The structure has a very simple Hibiscus petal pattern patch with tapered microstrip fed a line and partial trapezoid ground plane. The gap between the Hibiscus petal pattern patch and partial ground of the antenna are optimized to achieve wide impedance bandwidth. Results show that the antenna has a fractional bandwidth of about 120% from 3.04 to 11 GHz with S11 &lt; −10 dB with stable omnidirectional radiation pattern. The average gain of proposed prototype is 5.1 dBi and the radiation efficiency is about 85% on an average over the bandwidth. The fidelity factor for face to face is 0.8469 and for side by side is 0.9232 which represent the lower distortion of signal. The characteristics of proposed antenna are successfully simulated, prototyped and measured. Fairly good agreements between the simulations and measurements have been achieved. The reported antenna has a better impedance match and mutual coupling that provides a practical approach to realize the antenna for the UWB microwave imaging system. &#169; 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1824-1831, 2016 [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Microwave &amp; Optical Technology Letters is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1002/mop.29924
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        Text: English
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      – SubjectFull: Performance of electronics
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      – SubjectFull: Microwave imaging
        Type: general
      – SubjectFull: Antenna radiation patterns
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      – SubjectFull: Simulation methods & models
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      – TitleFull: A high performance UWB antenna design for microwave imaging system.
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            NameFull: Mahmud, M. Z.
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              M: 08
              Text: Aug2016
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              Y: 2016
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