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Design and Analysis of Shaped Beam Pattern using Circularly Polarized Broadband Proximity Fed MSA


Arpita Sahu , Ganpat University; Amrut Patel, Ganpat University


beam pattern , Fed MSA


The objective of this paper is to design and analyze the shaped beam pattern at 2.211GHz frequency. Microstrip patch antenna arrays can be designed to produce shaped pattern, which are advantageous in reduction of the onboard power of satellites by restraining the radiation of the antenna in the desired regions only. However the main disadvantages of using microstrip antenna arrays are their high loss and narrow bandwidth. In this paper the design of array electromagnetically coupled proximity fed patches are designed to operate over a bandwidth of 120MHz with Left hand circular polarization. An efficient null perturbation technique has been applied for the synthesis of flat topped radiation pattern with gain of 15dB and 3dB beamwidth of 55 degree in the region –27o≤Θ≤28o using 4x8 arrays (32 elements) with 0.6 wavelength spacing.

Other Details

Paper ID: IJSRDV3I2476
Published in: Volume : 3, Issue : 2
Publication Date: 01/05/2015
Page(s): 1636-1639

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