circ_aperture_fields.m File Reference

Computes far-field components radiated by a circular aperture. More...

Functions
function	circ_aperture_fields (in a, in k, in E0, in r, in theta, in phi)
function	bessc (in x)

Detailed Description

Computes far-field components radiated by a circular aperture.

This function models the electromagnetic far-field (E and H fields) radiated by a circular aperture of radius a, excited with a uniform E-field of amplitude E0. It uses a Bessel-based far-field pattern and computes spherical field components.

Parameters

a	Radius of the circular aperture [m]
k	Wavenumber [rad/m]
E0	Excitation field amplitude [V/m]
r	Radial distance to observation point(s) [m]
theta	Elevation angle(s) [rad]
phi	Azimuthal angle(s) [rad]

Return values

Er	Radial electric field (always zero)
Etheta	Theta-polarized electric field [V/m]
Ephi	Phi-polarized electric field [V/m]
Hr	Radial magnetic field (always zero)
Htheta	Theta-polarized magnetic field [A/m]
Hphi	Phi-polarized magnetic field [A/m]

Function Documentation

bessc()

function bessc

(

in

x

)

circ_aperture_fields()

function circ_aperture_fields	(	in	a,
		in	k,
		in	E0,
		in	r,
		in	theta,
		in	phi )