"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Narrow beamwidth conical dielectric resonator antenna

AJAY KUMAR1, RICHA GUPTA2, SAKSHI RAJPUT2, KAMALJIT SINGH BHATIA1,* , HARSIMRAT KAUR3, A. K.GAUTAM1

Affiliation

  1. Department of ECE, G.B. Pant Institute of Engineering & Technology, Pauri Garhwal-246194, Uttarakhand, India
  2. Maharaja Surajmal Institute of Technology, New Delhi
  3. Department of Electronics and Communication Engineering, CT Institute of Engineering and Technology, Jalandhar

Abstract

The document depicts a novel technique of reducing beamwidth by modifyingthe geometry of Dielectric Resonator Antenna. This work can serve up as a source of narrow beam DRA model. The beam is made more directive by reducing the beamwidth and, to this end, diverse geometries such as hemispherical (HS), snap head (SH), concave (CV), Cone[CN] have been stacked on already prevailing rectangular dielectric resonator antennas (RDRA) to reduce beam-width, high gain of the antenna for applications in wireless local area networks (WLAN), line of sight (LOS) communication, etc.The submitted concept is endorsed by numerous interesting numerical results, involving HFSS full-wave electromagnetic simulations. Further, the conical lens structure seems to present the highest gain of 8.23 dBi with a reasonable beamwidth of 〖48.33〗^oin E plane and〖33.44〗^0 in H plane. Hence, conical geometry is fabricated and measured to present the best outcomeamongstall geometries. Its operating frequency band ranges from (5.55GHz to 5.89 GHz).The modelis additionallyexamined for circular polarisation. The orthogonal mode pair of higher-ordermode TE_δ15^xand〖 TE〗_1δ5^y has been excited at frequency 5.67 GHz and 5.74 GHz,correspondingly.The impedance matching bandwidth of 2.97% (5.55-5.89 GHz) in concurrence with axial ratio bandwidth of .61%(5.67-5.74 GHz) has been accomplished. This can be established as a forthcomingstrategy on beam control, which may substitute bulky phase shifters employed in radars..

Keywords

Conical dielectric resonator antenna, Beamwidth, Axial ratio.

Submitted at: July 29, 2021
Accepted at: April 8, 2022

Citation

AJAY KUMAR, RICHA GUPTA, SAKSHI RAJPUT, KAMALJIT SINGH BHATIA, HARSIMRAT KAUR, A. K.GAUTAM, Narrow beamwidth conical dielectric resonator antenna, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 3-4, pp. 175-186 (2022)