Monocycle pulses are commonly used to analyze ultra wideband (UWB) antennas in time domain. But no standard guideline is available to estimate its accurate pulsewidth. In this paper, we propose a new technique and examine the same for a UWB monopole antenna. This approach should alleviate present lacunae in time domain analysis and help one to obtain accurate characteristics theoretically. © 2013 IEEE.

DEBATOSH GUHA

Radio Physics and Electronics

D GANGULY

S DAS

A ROJATKAR

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

Time domain studies of ultra wideband monopole: Theoretical study to alleviate ambiguities

2013 IEEE Applied Electromagnetics Conference, AEMC 2013

Two geometries of dielectric ring resonator (DRR) have been investigated as new variants for designing ultrawideband hybrid monopole-DRAs (dielectric resonator antennas) with improved features. They are simply hemispherical and conical in shape and have been implemented individually. Hybrid monopole-DRA is actually a combined configuration using a grounded monopole surrounded by a small DRR touching the same ground plane. Compared to an earlier version using cylindrical DRR of same dielectric material, the proposed ones promise for about 25% larger impedance bandwidth maintaining identical gain and radiation properties. As much as 126% impedance bandwidth with consistent monopole type radiation and 2-4 dBi peak gain has been demonstrated using a set of prototypes shaped from dielectric rod with ε r = 10. Physical insight in to the ultrawideband operation along with a comprehensive design guideline is presented. © 2006 IEEE.

Journal	Data powered by Typeset2013 IEEE Applied Electromagnetics Conference, AEMC 2013
Publisher	Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
Open Access	No