Different feed techniques are used in dielectric resonator antenna (DRA). Very recently, one higher order mode (HEM12δ) has been successfully excited using some unconventional techniques. Yet another new technique is proposed in this paper, which is absolutely planar in configuration. Two different feed geometries have been explored indicating potential scope of applications. © 2014 IEEE.

DEBATOSH GUHA

Radio Physics and Electronics

A BANERJEE

C KUMAR

Y M M ANTAR

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Microstrip line(s) as new feed for exciting a cylindrical DRA with higher order HEM 12δ mode

IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

Higher-order {\rm HEM}12 \deltamode has been experimentally realized in a cylindrical dielectric resonator antenna (CDRA) very recently revealing broadside radiation like the dominant {\rm HEM}11 \deltamode. The primary challenge is the excitation of the mode in a practical DRA sitting on a metal ground plane, which was first resolved by introducing a floating feed as an equivalent current ribbon. In this letter, yet another technique has been explored using a conventional probe-fed CDRA placed on a metal plate. Only a new trough-shaped air cavity has been introduced in the ground plane just beneath the DRA to simulate a special boundary condition, which enunciates desired modal fields. Such a technique may be improvised for other potential applications. The proposed concept has been verified using both simulated and experimental results. © 2002-2011 IEEE.

IEEE Antennas and Wireless Propagation Letters

New technique to excite higher-order radiating mode in a cylindrical dielectric resonator antenna

A resonant mode (HEM 12δ), other than those (HEM 11δ and TM 01δ) conventionally excited and used in a cylindrical dielectric resonator antenna (CDRA) has been examined with a view for using it as another radiating mode with broadside radiation patterns. Excitation of the mode, being the most challenging aspect, has been discussed and resolved by employing an innovative technique. The proposed concept has been successfully verified and experimentally demonstrated for the first time. More than 8-dBi peak gain with excellent broadside radiation has been obtained from a prototype shaped from a commercially available low-loss dielectric material with relative permittivity 10. © 2006 IEEE.

IEEE Transactions on Antennas and Propagation

Higher order mode excitation for high-gain broadside radiation from cylindrical dielectric resonator antennas

Twelfth International Conference on Antennas and Propagation (ICAP 2003)

Modelling a planar phase switched structure (PSS) in Ansoft HFSS (High Frequency Structure Simulator)

Electronics Letters

Microstrip transmission line excitation of dielectric resonator antennas

Microstrip line(s) as new feed for exciting a cylindrical DRA with higher order HEM<inf>12Î´</inf> mode

Journal	Data powered by TypesetIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Publisher	Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN	1522-3965
Open Access	No