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Dual Band-Notched Small Monopole Antenna with Enhanced Bandwidth for UWB Applications

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Abstract

This article proposes a novel printed monopole antenna for ultra wideband applications with dual band-notch function. The antenna consists of a disc-shaped radiating patch with a pair of folded strips arms, and a ground plane with a two L-shaped conductor backed plane, which provides a wide usable fractional bandwidth of more than 140 % (2.6–14.43 GHz). In order to generate single band-notch characteristics, we use a modified disc-shaped radiating patch with a pair of folded strips arms also by using this modified radiating patch, additional resonance is excited and hence much wider impedance bandwidth can be produced, especially at the higher band. By adding two L-shaped conductor backed plane in the ground plane a dual band notch function is achieved. The measured results reveal that the presented dual band-notch monopole antenna offers a very wide bandwidth with two notched bands, covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4 GHz C bands. The designed antenna has a small size of \(12\times 18\,\hbox {mm}^{2}\).

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Acknowledgments

The authors are thankful to Microwave Technology (MWT) Company staff for their beneficial and professional help (www.microwave-technology.com).

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Authors and Affiliations

  1. Electrical Engineering Department, Ardabil Branch, Islamic Azad University, Ardabil, Iran

    Nasser Ojaroudi

  2. Young Research Club, Ardabil Branch, Islamic Azad University, Ardabil, Iran

    Mohammad Ojaroudi

Authors
  1. Nasser Ojaroudi
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  2. Mohammad Ojaroudi
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Corresponding author

Correspondence to Nasser Ojaroudi.

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Ojaroudi, N., Ojaroudi, M. Dual Band-Notched Small Monopole Antenna with Enhanced Bandwidth for UWB Applications. Wireless Pers Commun 75, 569–578 (2014). https://doi.org/10.1007/s11277-013-1377-4

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  • DOI: https://doi.org/10.1007/s11277-013-1377-4

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