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Proximity coupled stacked circular disc microstrip antenna with reduced size and enhanced bandwidth using DGS for WLAN/WiMAX applications

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2 Author(s)
Prajapati, P.R. ; Dept. of Electron. & Comput. Eng., Indian Inst. of Technol., Roorkee, India ; Kartikeyan, M.V.

A compact proximity fed stacked circular disc microstrip antenna (SCDMA) with dumbbell shaped circular head DGS has been proposed in this work. Proposed DGS structure enhances bandwidth by 204%, reduced average area of both circular patches by 58%, increases radiation efficiency by 30.7% and also improves VSWR by 17%. The simulated antenna exhibits 6.24 dB gain at 5.53 GHz operating frequency and has bandwidth 5.20 to 5.94 GHz, which satisfy two licensed bands (5.25-5.85 GHz); (5.725-5.8 GHz). These bands are suitable for WLAN and WiMAX applications respectively. This paper includes 2D radiation patterns with E plane and H plane, VSWR and return loss of SCDMA with DGS structure. The design and optimization of SCDMA with and without DGS were carried using CST Microwave Studio V.9.

Published in:

Electrical, Electronics and Computer Science (SCEECS), 2012 IEEE Students' Conference on

Date of Conference:

1-2 March 2012

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