Antenna Current Calculation Based on Equivalent Transmission Line Model

Abstract

This paper provides a new way for spatial current/field profiles for frequency-selective surface analytical approximation. It confirms that the per unit length radiation resistance of an equivalent transmission line model for line antenna has little influence on the normalized current distribution. The two-wire equivalent transmission line model (typically used for transmitting line antenna) is applied to the receiving line antenna. In this case, the corresponding incident field is decomposed into odd and even mode for asymmetric distribution. A one-wire equivalent transmission line model is then introduced for any antenna composed of relative narrow strips. The incident field does not need to be decomposed. According to the simulation, the transmission line loss has little influence on the current distribution.

An efficient modeling approach of 1D-planar metamaterials in the high-frequency regime

“…Transmission line equivalent circuits are used to simplify modeling in a wide area of electromagnetic (EM) problems, as, for instance, antenna problems (Wei and Wen, 2022), measurement technology of EM quantities (Huang et al , 2022) or high-voltage power lines (Zychma and Sowa, 2022). One important similarity between them is the determination process of the lumped elements’ values.…”

Editorial for the Special Issue on Advanced Interconnect and Packaging

“…Pan et al present a novel wideband bandpass filter based on the integration of a substrate-integrated waveguide and a spoof surface plasmon polariton [ 12 ]. Wei et al present a new method for the analytical approximation of spatial current/field profiles of frequency-selective surfaces and demonstrate that the transmission line loss has little influence on the current distribution [ 13 ]. Bai et al propose a broadband frequency-selective rasorber based on spoof surface plasmon polaritons [ 14 ].…”