Radiation analysis of on-platform antenna using MoM-PO combined with surface-surface configuration

Abstract

In this article, wire antennas installed on electrically large structures are modeled by surface-surface configuration. The surface-surface configuration is applied to the hybrid method of moments-physical optics (MoM-PO) to solve electromagnetic radiation problem of wire antennas mounted on electrically large conducting platform. Numerical results for the arbitrary shaped perfectly electric conducting are considered. Compared with the wire-surface configuration, the surface-surface configuration is easy to ensure the current continuity at the junction and maintain the required good accuracy. Additional complex basis functions are not required in surface-surface junction model compared with wire-surface junction model.

Multiport Analysis by Pad㉠Approximation

“…If the power series is expanded at s 0 , then the complex variable s in (9) has to be replaced by (s − s 0 ) and the moments in (10) and (11) have to be evaluated at s = s 0 .…”

“…Some common analytical methods are the transmission line model [1][2][3][4], cavity model [5,6], and multiport network model (MNM) [7,8]. Numerical methods are the method of moments (MoM) [9][10][11][12], finite element method (FEM) [11,12], and finite difference time domain method (FDTD) [13,14]. The multiport network model can be considered an extension of the cavity model where the substrate is treated as a cavity surrounded by a perfect electric conductor (PEC) on the top and bottom planes, and a perfect magnetic conductor on side surfaces.…”

Estimation Method for Simultaneous Switching Noise in Power Delivery Network for High-Speed Digital System Design

“…How to model the PDN including different types of modules with wideband features, and at the same time possess rather complicated coupling schemes, is a very challenging task by the conventional approaches. The modeling methods have been discussed in many papers, numerical methods such as method of moments (MoM), finite-difference method (FDM) and finite difference time domain (FDTD) have been used in the past to analyze the PCB structures [6][7][8][9][10][11][12][13]. The transmission matrix method (TMM) uses a fast method of computing the portto-port behavior of special parallel plane structures based on the transmission matrix (or ABCD matrix) of each column of unit cells [14].…”

Hybrid Tdie-Tdpo Method for Studying on Transient Responses of Some Wire and Surface Structures Illuminated by an Electromagnetic Pulse

“…However, many electrically large ones often have fine structures which are very electrically small in comparison with single wavelength. Under such circumstances, hybrid method consisting of TDIE and time-domain PO (TDPO) will be an appropriate choice [21][22][23][24][25][26].…”