u can get the full detail calculation about power divider in Pozar book. then u can see the book of Scott.upto what stage u want to design it ? remeber abt harmonic rejection also.
Added after 51 seconds:
u can get the full detail calculation about power divider in Pozar book. then u can see the book of Scott.upto what stage u want to design it ? remeber abt harmonic rejection also.