Patent ID: 7005949
Filing Date: 2006-02-28
Classification: H01P

Abstract:
1. A dielectric filter comprising: a dielectric block having a first end face, a second end face disposed in opposite side to said first end face and lateral faces each being disposed between edges of said first and second end faces; a plurality of resonators each having a through hole which lies between said first and second end faces of said dielectric block and is coated with an inner conductor, and an outer conductor coated on said second end face and said lateral faces of said dielectric block; and an input/output electrode which is insulated from said outer conductor and capacitively coupled to one of said resonators at input or output stage on said first end face, and extends to a mounting surface which is one of said lateral faces of said dielectric block, wherein said input/output electrode includes a conductor pattern formed on said first end face and made of a conductive line having two linear portions extending in parallel to each other and facing each other, said conductor pattern having an inductance component which self-resonates at a frequency at which spurious of said filter is suppressed.