Ultra Wide Band Compact Antenna with Dual U- Shape Slot for Notch-Band Application

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  • Ferdows Zarrabi*1,
  1. Faculty of Eng., Science and Research Branch, Islamic Azad University, Tehran,Iran

Revised: 2018-01-10

Accepted: 2018-04-22

Published in Issue 2018-06-01

How to Cite

Zarrabi, F. (2018). Ultra Wide Band Compact Antenna with Dual U- Shape Slot for Notch-Band Application. Signal Processing and Renewable Energy (SPRE), 2(2), 45-49. https://oiccpress.com/spre/article/view/7773

PDF views: 119

Abstract

In this article, a compact ultra-wideband monopole antenna with notch band characteristic is presented. The proposed antenna has a notch-band for rejection of WiMAX frequency at 3.5GHz. Here, we show the ability of controlling the notch frequency with some changes in U-slot. The antenna has the bandwidth of 3.1-16 GHz with the notch at 3.2-3.8GHz with high rejection and VSWR of notch around 16. The prototype antenna based on monopole antenna with dual U-shape slots is fabricated. The antenna ground contains a T slot for matching. The antenna has Omni-directional pattern in E-plane and bi-directional pattern in H-plane. The antenna gain has altered from -8 to 5.9 dB at the range of 2–16 GHz, with an average gain of 4.2 dBi. The total size of the antenna is 12×18×1.6 mm3. The multi U line controls the current distribution, while it can be replaced by pin diode for achieving reconfigurable structure.
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