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Pattern and frequency reconfigurable antenna with diode loaded ELC resonator

Published online by Cambridge University Press:  31 July 2019

Ghanshyam Singh ,
Binod K. Kanaujia Open the ORCID record for Binod K. Kanaujia [Opens in a new window] ,
Vijay K. Pandey ,
Deepak Gangwar  and
Sachin Kumar
Ghanshyam Singh
Affiliation:
Department of Electronics & Communication Engineering, Feroze Gandhi Institute of Engineering and Technology, Raebareli, India
Binod K. Kanaujia*
Affiliation:
School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
Vijay K. Pandey
Affiliation:
Department of Electronics & Communication Engineering, Noida Institute of Engineering and Technology, Greater Noida, India
Deepak Gangwar
Affiliation:
Department of Electronics & Communication Engineering, Bharati Vidyapeeth's College of Engineering, New Delhi, India
Sachin Kumar
Affiliation:
School of Electronics Engineering, Kyungpook National University, Daegu, Republic of Korea
*
Author for correspondence: Binod Kumar Kanaujia, E-mail: bkkanaujia@ieee.org
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Abstract

In this work, a new compact, low profile, frequency, and end-fire pattern reconfigurable antenna is presented. The proposed antenna consists of four parasitic elements and an electric-inductive-capacitive (ELC) resonator enclosed with a closed ring resonator (CRR). The reconfigurability in the proposed antenna is achieved with the help of five PIN diodes (D1–D5) embedded on the top surface of the substrate. The diode (D1) is implanted between ELC and CRR resonators for frequency reconfigurability. The other four diodes (D2–D5) are implanted between the ground plane and four parasitic elements to control the electrical length of the ground plane to achieve pattern diversity. The ground plane and parasitic elements steer the primary omni-directional beam to bi-directional and uni-directional end-fire radiation at multiple frequencies. The proposed antenna exhibits multiband operation and end-fire pattern diversity depending upon the different states of PIN diodes. The overall size of the proposed antenna is 0.20λ0× 0.17λ0× 0.009λ0, where λ0 is calculated at the lowest resonance frequency. The impedance bandwidth of the antenna ranges from 1.45 to 26.22%, while peak gain varies from 0.86 to 3.86 dBi depending upon the state of operation. The measured results are in agreement with the simulated results, which confirm the frequency and pattern diversity performance of the antenna. The proposed antenna can be used in back-to-back repeater systems.

Keywords

Antennaparasitic elementpattern diversityreconfigurable
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Issue 2 , March 2020 , pp. 163 - 175
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019 

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