Volume 16, Issue 2 (June 2020)                   IJEEE 2020, 16(2): 130-136 | Back to browse issues page

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Jelodar A, Soleimani M, Sedighy S H. Biologically Inspired Four Elements Compact Antenna Arrays With Enhanced Sensitivity for Direction of Arrival Estimation. IJEEE 2020; 16 (2) :130-136
URL: http://ijeee.iust.ac.ir/article-1-1421-en.html
Biologically Inspired Four Elements Compact Antenna Arrays With Enhanced Sensitivity for Direction of Arrival Estimation
A. Jelodar , M. Soleimani , S. H. Sedighy
Abstract:   (2938 Views)
A new four elements compact antenna array is presented and discussed to achieve enhanced phase resolution without sacrificing the array output power. This structure inspired by the Ormia Ochracea’s coupled ears. The analogy between this insect acute directional hearing capabilities and the electrically compact antenna array is used to enhance the array sensitivity to direction of arrival estimation of an electromagnetic wave. This four elements biomimetic compact array is composed of four strongly coupled antenna elements and two external coupling networks which are designed to enhance the phase resolutions between all antenna element outputs without decrease in the array output power. In other words, this four elements compact array extracts the same power level from the incident EM wave compared with regular array, while the output phase sensitivity is significantly enhanced. The simulation results confirm the advantages of this new compact array compared with the previously reported ones in the literature.
Keywords: Antenna Array , Phase Resolution , Compact Array
Full-Text [PDF 928 kb]   (1248 Downloads)    
Type of Study: Research Paper | Subject: Biological Modeling & Simulation
Received: 2019/01/14 | Revised: 2019/06/30 | Accepted: 2019/07/17
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.