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IJRSP Vol.35(2) [April 2006] >

Title: Theoretical analysis on circular sector microstrip antennas
Authors: Tiwari, V K
Kimothi, Aradhana
Bhatnagar, D
Saini, J S
Saxena, V K
Kumar, P
Keywords: Microstrip antenna
Circular sector microstrip antenna
Cavity model and radiation patterns
Resonance frequency
Input impedance
Issue Date: Apr-2006
Publisher: CSIR
Abstract: A rigorous theoretical analysis of a circular sector microstrip antenna with sector angle ⍺ is carried out. General expressions for radiated fields by antenna are derived by applying cavity model based modal expansion technique and are used to study its radiation parameters. Similar to a circular disk antenna, better results for circular sector antenna are also obtained in TM11 mode of excitation. The computed results of a sector antenna with ⍺ = 60º are compared with simulation results and a difference of 2.5%, 38%, 7% and 1.9%, respectively in resonance frequency; input impedance, directivity and bandwidth is recorded.
Page(s): 133-138
ISSN: 0367-8393
Source:IJRSP Vol.35(2) [April 2006]

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