MICROWAVE BANDPASS FILTER Russian patent published in 2004 - IPC

FIELD: microwave electronics; microwave bandpass filters.

SUBSTANCE: proposed microwave bandpass filter has rectangular below-cutoff waveguide accommodating two antennas with dielectric resonators in-between, as well as two conducting probes disposed beyond waveguide section incorporating all dielectric resonators and antenna filters, each probe being placed on respective end of mentioned section close to respective antenna; conducting probes are free to move along their axes. Conducting probes of microwave bandpass filter are installed perpendicular to respective antennas. They can be made, for instance, in the form of metal screws. Filter antennas can be made in the form of microstrip line section or coaxial rod.

EFFECT: ability of suppressing stray filtering band near effective band of filter without distorting characteristics in effective band.

6 cl, 3 dwg