Adjustable transmission line filter and method of constructing same

摘要: Transmission line filter adapted to respond a predetermined frequency, having resonator conducting layer with dielectric material on opposite sides thereof and ground plane the outside surfaces of material. The may be stripline or microstrip type constructed so that it tends operate at frequency different from desired which is not accessible for trimming after constructed. portion can removed change electrical parameters formed by response filter. Alternatively, added an opening in sand blast, laser beam other means, use conductive paint, trim