information about microstrip

hie ther i need some information about electromagnetic waves propagation in microstrip and I hope you guys could help me.

1) how does the variance of widths and lengths of microstrip affect electromagnetic wave propagations in it ?

2) why does a design becomes smaller in size during realization when using a substrate with high dielectric constant and small thickness ?

3) what are the main function of step discontinuity elements between strips such as MSTEP in ADS ?

4) how does the microstrips with angles such as MCURVE in ADS play role in enhancing the response of a design, such as a bandpass filter?

Thank you.

u get clear idea of all these things if u see "balanis" text book

kishore...

Hi sir I tried to get the "Balanis" but it is not available here.
Can you pls provide some brief answers for my questions earlier?
Thank you sir.

you for geting information microstrip antenna refer to ebook microwave david m pozar and handbook microstrip antenna by james