Patent ID: 6810577
Filing Date: 2004-11-02
Classification: B29D,G02B,H01P,Y10S,Y10T

Abstract:
A method of manufacturing a dielectric waveguide which includes a plurality of conductors having substantially parallel planes, a dielectric strip arranged between the planes of the plurality of conductors, and a wing integrally formed with the dielectric strip to extend from the dielectric strip along each of the planes of the conductors, the method comprising:preparing a sintered ceramic substrate for forming a portion of the dielectric strip and the wing; preparing a green sheet containing an inorganic powder and an organic binder for forming a remainder of the dielectric strip; preparing a composite laminate by fixing the green sheet on the ceramic substrate; wherein preparing the composite laminate includes providing a removal inhibiting layer comprising a difficult-to-remove material having a lower removal rate than that of a remainder of the green sheet between the ceramic substrate and the green sheet in the composite laminate; forming a resist material on an outer surface of the composite laminate, a position of the resist material defining an opening corresponding to the wing; removing the portion of the green sheet, which is exposed through the opening, to a desired amount until the removal inhibiting layer is exposed, by using the resist material as a mask to form an unfired structure having a shape comprising the dielectric strip and the wing; removing the resist material; firing the unfired structure to obtain a sintered body having the dielectric strip and the wing; providing the conductors respectively on the surfaces of the dielectric strip and the wing, which face outward; and arranging the sintered body relative to a second sintered body such that their respective dielectric strips are opposed to each other.