Work

Frequency Reconfigurable Near-Zero Refractive Index Material for Antenna Gain Enhancement Applications

Year: 2022

Type: article

Abstract: In this paper, a planar near-zero refractive index material (NZRIM) consisting of an outer loop with four symmetrical quarter-rings is proposed. The quarter-rings are connected to the outer loop by two symmetrical microstrip lines on the opposite side. The backside of the substrate has mutually central split microstrip lines. By loading adjustable capacitor between the split in the center of the backside of the substrate, the resonance frequencies of the proposed NZRIM can be controlled and thus the epsilon-near-zero (ENZ) frequency bands change correspondingly. According to the specific frequency bands of its metamaterial characteristics, the proposed NZRIM can be mounted above the surface of different antennas with different operation bands for 5G applications. Results show that the proposed NZRIM can enhance the forward radiation gain of antennas.

Source: Journal of Microwaves Optoelectronics and Electromagnetic Applications

DOI: 10.1590/2179-10742022v21i2259409

Authors: Ren Wang, Tao Tang, Melad M. Olaimat, Yuanzhi Liu

Institutions: University of Electronic Science and Technology of China, Chengdu University of Information Technology, Al al-Bayt University, University of Toronto

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4281649600

FWCI: 0.118

Cites: 15

Cited by: 2

Related to: 10