Category: Electromagnetic

F5 elevation RCS

The Effect of Carbon Fibre Body Panels on Aircraft RCS

A simple case study at 50MHz to demonstrate the effect on aircraft RCS of using carbon fibre body panels, rather than metallic body panels. Problem Specification: Compute the monostatic RCS of an F5 fighter aircraft. Demonstrate the differences in RCS … Read More

Naval Radar Analysis with UTD

Read about how the UTD is used to analyse radar antenna placement on a frigate. Overview Problem setup: Consider a frigate of length 120 m An antenna (e.g. for radar purposes) is located in front of the forward mast, to … Read More

Rectangular Patch Antenna Residing in a Cavity

A description of how infinite plane Green’s functions and the MoM Surface Equivalence Principle (SEP) may be used to simulate a rectangular patch antenna residing in a cavity. This example considers a rectangular patch antenna residing in a cavity. The … Read More

Two-port probe-fed circular antenna model

Two-Port Probe-Fed Circular Antenna

A two-port probe-fed circular microstrip antenna is simulated as an example. This example presents the computation of the S-parameters for a two-port probe-fed circular microstrip antenna. The antenna was orginally analysed in [1], allowing simple validation of the FEKO results. … Read More

optimised-band-reject-lead

Microstrip Filter Optimisation Using Masks

This page describes the optimisation of a microstrip line filter with the use of masks. Specified filter characteristics are realised. Introduction In this article, the FEKO optimisation mask feature will be used to optimise the response of a microstrip filter. … Read More

Mutual Impedance Between Elements in Dipole Array

The input impedance of dipole elements in a uniform and fractal array is investigated using FEKO. One of the main advantages of array antennas is its beam-forming capabilities and one of the difficulties in designing an array is the feeding … Read More

Microstrip-Fed Slot Antenna

A microstrip-fed slot antenna was designed using Antenna Magus for the following specifications: 5 GHz centre frequency 50 Ω input impedance FR4 substrate, ε = 4.35, height = 1.5mm Dimensions of the slot and feed-line are: Ws = 743.3 μm … Read More