volume | PIER Journals

Abstract

This paper proposes a high gain wide band stacked antenna using multiple meta-surfaces that offers stable radiation patterns with low cross-polarization level (CPL) and side-lobe level (SLL) for 5G applications. The suspended microstrip antenna (SMSA) offers high gain and wide bandwidth but the radiations from probe feed cause high CPL. SMSA design with meta-surfaces increases the inductive impedance of SMSA, therefore, the substrate height is decreased to increase the capacitance to compensate this inductive impedance. It decreases the cross-polar radiation due to decrease in probe feed length. Meta-surfaces electromagnetically couple with SMSA and enhance the bandwidth of antenna. SMSA with meta-surfaces is placed in a half-wavelength Fabry Perot Cavity (FPC) to enhance the gain of antenna. The proposed antenna offers S₁₁ < -10 dB, peak gain of 16.4 dBi, SLL < -23 dB and CPL < -23 dB and front to back lobe ratio (FBR) > 22 dB over 3.3-3.9 GHz. The structure is fabricated and tested. The measured results are close to the simulation ones. The proposed structure based on its radiation characteristics is a suitable candidate for 5G applications.

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Professor Anjali Rochkari

Dr. Vijaypal Yadav

Dr. Mahadu Trimukhe

Ms. Nayana Chaskar

Dr. Meenakshi Awasthi

Professor Rajiv Kumar Gupta