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Parallel-series feed network with improved G/T performance for high-gain microstrip antenna arrays

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3 Author(s)
Yousefbeigi, M. ; Univ. of Tehran, Tehran ; Enayati, A. ; Shahabadi, M.

A 16 x 8 microstrip antenna array with 28 dB of gain at 18 GHz using a parallel-series feed with reduced conductor traces is presented. The feed network connects antenna elements with about 50% reduction in conductor traces compared to conventional arrays with equal numbers of radiating elements. It also enhances the gain-bandwidth performance of the array and maintains a broadside radiation pattern in a wider frequency band. The full-wave simulation results are verified by means of measurements that demonstrate a relative gain-bandwidth of 4.4% with less than 1 dB of gain ripple.

Published in:

Electronics Letters  (Volume:44 ,  Issue: 3 )

Date of Publication:

January 31 2008

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