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Design of broadband multi-layered circular microstrip antenna for modern communication systems

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5 Author(s)
Sharma, M.M. ; Dept. of Electron. & Commun. Eng., Malaviya Nat. Inst. of Technol., Jaipur, India ; Yadav, S. ; Kumar, A. ; Bhatnagar, D.
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This paper presents the design and performance of a broadband multilayered circular microstrip antenna useful for modern communication systems. This antenna has three different dielectric layers namely RO3003, Foam substrate and Glass epoxy FR-4 which are pasted together with a very thin layer of 3M adhesive transfer tape applied between the radiating patch and the metallic ground plane of infinite size. This antenna has three `T' shaped slots on the circular patch with appropriate separation. The simulation of this structure is carried out with CST Microwave Studio and obtained results are presented systematically. This antenna presents impedance bandwidth 20.69% which is significantly higher than that obtained with a conventional circular patch antenna designed under similar conditions. The radiation patterns of antenna in entire bandwidth range are identical in shape and directed normal to the patch geometry.

Published in:

Microwave Conference Proceedings (APMC), 2010 Asia-Pacific

Date of Conference:

7-10 Dec. 2010