Dielectric line waveguide which forms electronic circuits
First Claim
1. A dielectric line waveguide comprising:
- two electrically conductive plates disposed substantially parallel to each other;
a first dielectric strip disposed between said two electrically conductive plates;
a dielectric plate disposed between said two electrically conductive plates;
a ground conductor formed on said dielectric plate and having an area which equals an amount required for blocking a frequency signal propagating in said dielectric line waveguide, said ground conductor having a slot line at a position intermediate opposed sides of said first dielectric strip;
a first line-switching conductor pattern provided for said ground conductor at a position corresponding to an end of said slot line, said conductor pattern being coupled to electromagnetic fields generated in said slot line and in said dielectric strip; and
a semiconductor device disposed on said slot line in such a manner that it bridges over said slot line.
1 Assignment
0 Petitions
Accused Products
Abstract
An amplifying circuit is formed by a combination of a dielectric line waveguide and a semiconductor device. Two electrically conductive plates are provided substantially parallel to each other. Two dielectric strips are disposed between the two conductive plates, and a dielectric plate is further inserted between the dielectric strips. Ground conductors are formed on the dielectric plate. The ground conductors have an area which equals an amount required for blocking a RF signal propagating in the dielectric line waveguide. A slot line is formed between the ground conductors in a position intermediate opposed sides of the dielectric strips. Line-switching conductor patterns are provided at both sides of the ends of the slot line. A field-effect transistor is mounted on the slot line such that it bridges over the slot line. Accordingly, losses and distortion of an RF signal, which would occur in an input/output circuit, are suppressed, and the generation of parasitic coupling is eliminated. Further, the dielectric line waveguide is miniaturized free from an external circuit, and accordingly, the manufacturing cost is reduced as well.
-
Citations
19 Claims
-
1. A dielectric line waveguide comprising:
-
two electrically conductive plates disposed substantially parallel to each other; a first dielectric strip disposed between said two electrically conductive plates; a dielectric plate disposed between said two electrically conductive plates; a ground conductor formed on said dielectric plate and having an area which equals an amount required for blocking a frequency signal propagating in said dielectric line waveguide, said ground conductor having a slot line at a position intermediate opposed sides of said first dielectric strip; a first line-switching conductor pattern provided for said ground conductor at a position corresponding to an end of said slot line, said conductor pattern being coupled to electromagnetic fields generated in said slot line and in said dielectric strip; and a semiconductor device disposed on said slot line in such a manner that it bridges over said slot line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification
-
- Resources
-
Current AssigneeMurata Manufacturing Co Limited
-
Original AssigneeMurata Manufacturing Co Limited
-
InventorsSakamoto, Koichi, Ishikawa, Yohei, Yamashita, Sadao, Kajikawa, Takehisa
-
Primary Examiner(s)GENSLER, PAUL L
-
Application NumberUS08/901,149Time in Patent Office568 DaysField of Search333/247, 333/248, 333/250, 330/277, 330/286, 331/107 DP, 331/107 SL, 455/325, 455/326, 455/327US Class Current330/286CPC Class CodesH01P 5/087 Transitions to a dielectric...
