FREQUENCY CHARACTERISTICs of  REACTIVE SYMMETRICAL QUADRiPOLES ON the BASE of SHUNTING STRUCTURES

 

I. A. Petrov

FSUE «CNIRTI name of the academician A.I.Berg»    

 

The paper is received on December 23, 2013

 

Abstract. The analysis of frequency characteristicû of shunting structures is carried out on the basis of the theorem about cascade connection of reactive symmetrical quadripoles. The Interpretation of mathematical passband is given for reactive symmetrical quadripoles and its change from physical passband is shown. By the example of the  Chebyshev filter it is shown that in physical passband the complex quadripoles mathematical passband can have stopbands that brings to the increase of weakening level and reflection coefficient.

Keywords: theorem, microwave devices, broadband matching structures.