Patent ID: 6104264
Filing Date: 2000-08-15
Classification: H01P

Abstract:
A dielectric waveguide comprising a dielectric strip disposed between two substantially parallel electrically conductive planes,said dielectric waveguide comprising at least three substantially planar laminated dielectric ceramic sheets comprised in a laminated body, said laminated body having a first area having a high effective dielectric constant and a second area having a lower effective dielectric constant than that of the first area, andelectrode films disposed on opposite outer surfaces of said laminated body,whereby the first area serves as the dielectric strip and the electrode films serve as the electrically conductive planes; andwherein each said dielectric ceramic sheet has a respective first portion of relatively high dielectric constant, said first portions together comprising said first area of said laminated body, and a respective second portion of each said ceramic sheet having a dielectric constant relatively lower than that of said corresponding first portion, said second portions together comprising a said second area adjacent to said first area serving as the dielectric strip.