2-D Circuit-Based Bianisotropic Omega Media

Autor: Luke Szymanski, Anthony Grbic
Rok vydání: 2020
Předmět:
Zdroj: IEEE Transactions on Antennas and Propagation. 68:7395-7405
ISSN: 1558-2221
0018-926X
DOI: 10.1109/tap.2020.3000868
Popis: In one dimension, a circuit network representation has been established for bianisotropic materials with an omega response (omega media). However, 2-D circuit-based or transmission-line metamaterials have been restricted to those with only magnetic and electric responses. This article proposes a 2-D circuit-based metamaterial that is equivalent to an omega medium. A lumped element unit cell composed of asymmetric $\pi $ -networks is proposed and validated using a circuit simulator. Circuit analysis of the metamaterial is performed using transmission (ABCD) matrices. A medium equivalency is then established in the homogeneous limit. The application of a 2-D omega medium as an impedance matching layer with phase and power flow control is explored, and a design procedure is developed. The impedance matching layer is then implemented using the proposed lumped element unit cell, and its performance is confirmed using Keysight’s Advanced Design System (ADS).
Databáze: OpenAIRE