ANALYSIS OF COMPACT E-PLANE DIPLEXERS IN RECTANGULAR WAVE-GUIDE

Photolithographic techniques permit the realization of complex circuit s totally confined to the E-plane of millimetric rectangular guides wi th high precision and Low cost, This work contains a detailed analysis of an E-plane diplexer configuration recently introduced, Its main fe ature is the matching section of the three port junction, a simple abr upt E-plane one tuned by means of an inductive post realized on the sa me mask as the branching filters, On the basis of this analysis, we al so demonstrate the application of a recently developed diplexer synthe sis technique, Many prototypes, in K-a-band were designed and tested, showing good performances and good agreement between theory and experi ment.