design a matching networks for microstrip antenna arrays

[Madhusudhang]

Hi to all,
i have designed microstrip patch antenna array with corporate feed network, my problem is to design a matching network in between them so that it provides good return loss, i have tried in many ways, but not getting good results.
please provide me some information regarding this.
thank you

 

[Kohi_boy]

1) Use Transmission Line model of microstrip patch antenna to find input impedance (Zin)
2) Use Quarter wave length transformer to reduce the impedance
3) Use T or Y power divider to spit the power. Transform impedance if necessary.