Microstrip patch antenna#meeting 4

From the last meeting that we  discussed,our group are able to run the simulation of CST in designing the rectangular microstrip patch antenna.Due to the imperfect value of the graph(S11 and VSWR value graph) we obtained from the last discussion,we had been make some effort to optimize it  during week 11 meeting.

First of all,We have to redraw  and reset  some of the  parameter that we are calculated .The design and the parameter table will be shown below.

Parameters	Calculation (mm)	Numerical (mm) (optimization)
Lp	23.4	-
WP	30.4	30.4
Lf	27.4	-
Wf	3.06	-
Ls	46.86	44.86
Ws	60.8	45.5
Fi	5.82	5.94
Gpf	0.5	-
h	1.6	-
t	0.035	-

After the optimization.we are able to obtaine the suitable graph which required (S11 >-10 and VSWR<2)

S11 graph

VSWR graph

On the next meeting,we will going to calculate the fractional bandwidth and ploting the polar plot for the  far field such as directivity,H field and E fied.