microstrip resonator input impedance

[kezambo]

microstrip resonator

attached is my microstrip resonator layout. During my simulation, I get the input impedance, Zin just by asking ADS to calculate it. The problem now is, I do not know how to determine the Zin of that circuit mathematically.. Can anyone help me on how to find it?

 

[zarrel]

microstrip input impedance

hi kezambo aka mizi?

i think i got the idea. your circuit could be realised using series inverters and a shunt capacitor. then using theory circuit to calculate the zin.