Design of multistage ferrite microwave loop filters
Abstract
An algorithm is presented for the computerized design of a multistage ferrite microwave bandpass filter with coupling loops. A mathematical model in the linear approximation has the following characteristics. The total magnetic flux in the coil coupling elements which is conditioned by the coil current as well as by the radiation field of the ferrite resonator was calculated. The resistance matrix of the fourpole network was obtained, and the transmission matrix of the ith stage of the loop filter was computed. The block diagram of the algorithm is provided, and curves depicting the amplitudefrequency characteristics of the filter and the frequency dependence of resonant losses and of the pass bands are presented.
 Publication:

Radioehlektronika
 Pub Date:
 December 1975
 Bibcode:
 1975Radel..18R..67I
 Keywords:

 Bandpass Filters;
 Computer Aided Design;
 Ferrites;
 Magnetic Circuits;
 Microwave Filters;
 Network Synthesis;
 Cascade Control;
 Frequency Response;
 Magnetic Coils;
 Quadrupole Networks;
 Electronics and Electrical Engineering