109 / 2020-08-10 20:54:16

An Improved Equivalent Circuit Model of Tightly Coupled Array

ultra-wideband array,tightly coupled array,equivalent circuit model

RF and Microwave Circuits > Antenna

For tightly coupled array, the equivalent circuit model (ECM) is a common tool for analysis and design. ECM can guide the design of tightly coupled arrays with physical insight and consume less computational resource than electromagnetic numerical methods (e.g. FEM, FDTD and MoM). The previous ECM is applicable only when the dipole elements can be treated as Hertz dipoles, the ECM gradually fails as the frequency increases. In this paper, based on the previous paper, an improved ECM is proposed. The improved ECM has better accuracy and adaptability, can better guide the early design of tightly coupled arrays. Tightly coupled arrays have the potential to expand bandwidth towards high frequency. Further research on expand bandwidth of TCA can be carried out on this basis.