Analysis of Spherical Dielectric Lens using Spherical Modal Expansion

Author(s):

Mahesh A , R V College of Engineering; Ravishankar S, R V College of Engineering

Keywords:

Dielectric lens, HFSS, Neltec, Polypropylene, RT Duroid

Abstract:

In this paper, the analysis of spherical dielectric lens with 1x2 rectangular microstrip patch array antenna in C band (f0= 6GHz) is carried out using spherical modal expansion(SME). First single rectangular microstrip patch antenna is designed at a resonant frequency of 6GHz, followed by 1x2 array using a Neltec substrate with dielectric constant 3.2. Later, a spherical dielectric lens antenna is designed which is at least two wavelengths greater than the microstrip patch array. A low loss and low cost Dielectric material, Polypropylene is used for lens design. Numerical computation of spherical lens with 1x2 patch array is carried out in Matlab. To validate the numerical results, Spherical lens with 1x2 patch array is simulated in EM flow solver HFSS. The numerical results and HFSS results are in good agreement. The analysis indicates that, designed spherical lens gives a maximum additional gain of 9.2dB at 6GHz.

Other Details:

Manuscript Id	:	IJSTEV2I10139
Published in	:	Volume : 2, Issue : 10
Publication Date	:	01/05/2016
Page(s)	:	551-555

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