BAND-PASS FILTER Russian patent published in 1995 - IPC

FIELD: microwave technique. SUBSTANCE: band-pass filter has three stages 1 each incorporating first and second microstrip transmission line sections 2 and 3 electromagnetically coupled by parallel turn-to-turn coupling elements 5 via first magnetized gyromagnetic cavity 6. Sections 2,3 are installed on opposite sides of common deposited layer where there is through hole. Two metallization strips may be introduced between every adjacent stages 1; ends of strips are electrically connected to common deposited layer and strip on side of connection of sections 2 and 3 of two adjacent stages 1 has open circuit at point of connection. EFFECT: improved rejection and repeatability of parameters during manufacture; reduced direct-pickups at multistage connection. 3 cl, 2 dwg