Metamaterial Loaded Antenna with Improved Efficiency and Gain for Wideband Application

ABSTRACT

A wideband antenna with excellent efficiency is the most important requirement in wireless communication. In this paper, a wideband and highly efficient planner metamaterial-based microstrip patch antenna is proposed and examined. The proposed patch antenna is designed whose size is 12 × 16 mm² and has a metamaterial unit cell loading on the top patch and the bottom ground plane. The top unit cell, which consists of four triangular shapes capacitive coupled resonator (TSCCR) and the bottom unit cell, which is square-shaped with diagonal cross-slot (SSDCS) is loaded on patch and ground respectively. The proposed antenna gives impedance matching of −10 dB for frequency band 2.88–14 GHz. The antenna's highest gain of 7.2 dBi at 12.39 GHz, positive gain range of 1.5–7.8 dBi in its operating band, and average efficiency of 75% are attained. The wideband and high gain properties of the proposed antenna make it suitable for UWB (3.1–10.6 GHz), Wi-Max (3.5 and 5.8 GHz), 5G NR FR1 (3.3–5 GHz) and Wi-Fi 6E (5.59–7.12 GHz) application.

KEYWORDS:

• Epsilon negative
• High efficiency
• High gain
• Metamaterial
• Patch antenna
• UWB

Additional information

Notes on contributors

KM Neeshu

KM Neeshu was born in Ghaziabad, India. She received master's degree in electronics and communication engineering from, Delhi, India in 2015 and currently pursuing PhD in RF and microwave engineering from the Birla Institute of Technology Mesra, Ranchi, India. Her scientific interests are antennas and wave propagation, and metamaterial and its applications. Her current research is focused on the investigation of metamaterial and its advantages in antenna.

Anjini Kumar Tiwary

Anjini Kumar Tiwary was born in Jamshedpur, India. He received ME degree and PhD degree from Birla Institute of Technology, Ranchi, India in 2009 and 2013, respectively. Currently, he is assistant professor in the Department of Electronics and Communication Engineering, Birla Institute of Technology, Ranchi, India. His research interests are RF circuits, antennas, filtenna, EBG, PBG structures, and metamaterials. He has authored and coauthored nearly 15 journal papers. Email: [email protected]