calc_width_patch.m

patchantenna matlab code

function width=calc_width_patch(fr, Er, h);

% This function was created by Gazi K ASadullah
% fr= Resonant frequency (in Ghz)
% Er= dielectric constant
% h= Thickness of the material based on ROgers Material
% width= width of the microstrip used for patch antenna
% References: 
% Microwave Engineering - Third edition- David Pozar
% Microwave filters, Impedence-matching, Networks, and Coupling structures - Mathaei Young Jones
% Passive and Active filters- Theory and implementations - Wai-kai-Chen.
% Digital Signal Processing using MATLAB- Vinay K Ingle.
% Stripline Circuit design- Harlan Howe
% Antenna THeory: Analysis and Design -Balanis
fr=fr*(1e+9);
c=(2.9986e+8*100)/2.54; %speed of light
A= c/(2*fr);
B= 1/(sqrt((Er+1)/2));
width=A*B;