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THEORETICAL ANALYSIS AND DESIGN OF DUAL BAND DGS ANTENNA WITH SMALL FREQUENCY RATIO FOR WI-FI AND WIMAX APPLICATIONS

By S. Kumar, A. P. Singh, and M. K. Khandelwal

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Abstract:
In this article, a theoretical analysis and design are presented for a Microstrip Patch Antenna (MPA) embedded with an inclined rectangular slot supported by a C-shaped Defected Ground Structure (DGS). Dual-band characteristics are achieved at 2.4 GHz and 2.6 GHz with a small frequency ratio of 1.08, which makes the proposed antenna useable for Wi-Fi and WiMAX applications. A theoretical analysis is also proposed for the designed antenna structure using modal expansion cavity model and equivalent circuit approach. The analyzed antenna design is fabricated, and it is found that measured results are in good match with theoretical and simulated results.

Citation:
S. Kumar, A. P. Singh, and M. K. Khandelwal, "Theoretical Analysis and Design of Dual Band DGS Antenna with Small Frequency Ratio for Wi-Fi and WiMAX Applications," Progress In Electromagnetics Research M, Vol. 62, 153-166, 2017.
doi:10.2528/PIERM17092101

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