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Sensors 2017, 17(10), 2174; https://doi.org/10.3390/s17102174

A Compact Multiple Notched Ultra-Wide Band Antenna with an Analysis of the CSRR-TO-CSRR Coupling for Portable UWB Applications

1
Division of Electronics and Electrical Engineering, Dongguk University, Seoul 04620, Korea
2
Poongsan Corporation Ltd., Daejeon 34027, Korea
*
Author to whom correspondence should be addressed.
Received: 22 August 2017 / Revised: 17 September 2017 / Accepted: 17 September 2017 / Published: 25 September 2017
(This article belongs to the Section Remote Sensors)
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Abstract

We present a compact ultra-wideband (UWB) antenna integrated with sharp notches with a detailed analysis of the mutual coupling of the multiple notch resonators. By utilizing complementary split ring resonators (CSRR) on the radiating semi-circular patch, we achieve the sharp notch-filtering of various bands within the UWB band without increasing the antenna size. The notched frequency bands include WiMAX, INSAT, and lower and upper WLAN. In order to estimate the frequency shifts of the notch due to the coupling of the nearby CSRRs, an analysis of the coupling among the multiple notch resonators is carried out and we construct the lumped-circuit equivalent model. The time domain analysis of the proposed antenna is performed to show its validity on the UWB application. The measured frequency response of the input port corresponds quite well with the calculations and simulations. The radiation pattern of the implemented quad-notched UWB antenna is nearly omnidirectional in the passband. View Full-Text
Keywords: UWB antenna; multiple notches; complementary split ring resonator (CSRR); UWB radar UWB antenna; multiple notches; complementary split ring resonator (CSRR); UWB radar
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Rahman, M.; Ko, D.-S.; Park, J.-D. A Compact Multiple Notched Ultra-Wide Band Antenna with an Analysis of the CSRR-TO-CSRR Coupling for Portable UWB Applications. Sensors 2017, 17, 2174.

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