Patent ID: 6140891
Filing Date: 2000-10-31
Classification: H01P

Abstract:
A dielectric laminated filter comprising:a first dielectric laminated block in which a plurality of dielectric sheets are laminated;a plurality of first resonance electrodes formed over an inner layer of said first dielectric laminated block;a second dielectric laminated block in which a plurality of dielectric sheets are laminated;a plurality of second resonance electrodes formed on a first inner layer of said second dielectric laminated block;a coupling element formed on a second inner layer of said second dielectric laminated block;input and output electrodes respectively formed at first and second outer surfaces of said second inner layer;a plurality of notch capacity electrodes formed on said second inner layer coupled between respective input and output electrodes and respective ends of said coupling element, each of said notch capacity electrodes positioned below each of said second resonance electrodes to form a coupling capacitor;a first shield electrode formed between said first dielectric laminated block and said second dielectric laminated block;a plurality of third resonance electrodes formed on a third outer surface of said first and second dielectric laminated blocks to connect one end of each of said first resonance electrodes to one end of each of said second resonance electrodes;a second shield electrode formed above a top surface of said first shield electrode;a third shield electrode formed below a bottom surface of said first shield electrode; anda ground electrode formed on a fourth outer surface to connect said first, second, and third shield electrodes together.