Claims
- 1. A manufacturing apparatus for manufacturing a dielectric resonator apparatus;
- wherein said dielectric resonator apparatus comprises:
- a cross-shaped TM dual mode dielectric resonator provided in a electrically conductive case, said TM dual mode dielectric resonator comprising first and second dielectric resonators integrally formed so as to be perpendicular to each other; and
- at least one coupling groove for coupling an operation mode of said first dielectric resonator with an operation mode of said second dielectric resonator, formed on at least one of a front surface and a back surface of a crossing portion of said first and second dielectric resonators, in a diagonal direction of said crossing portion so as to cut electric lines of force of either one of an odd mode and an even mode,
- wherein said manufacturing apparatus comprises:
- a pair of main molds each having a cavity for forming said TM dual mode dielectric resonator and a penetrating hole formed in the center of said cavity so as to penetrate said main mold; and
- a pair of sub-molds formed so as to insert said penetrating hole, said sub-molds being slid in said penetrating hole in a direction towards front and back surfaces of said case so that the height of projection of said sub-mold into said cavity can be changed.
- 2. A manufacturing apparatus for manufacturing a dielectric resonator apparatus;
- wherein said dielectric resonator apparatus comprises:
- a cross-shaped TM dual mode dielectric resonator provided in a electrically conductive case, said TM dual mode dielectric resonator comprising first and second dielectric resonators integrally formed so as to be perpendicular to each other; and
- at least one coupling projection for coupling an operation mode of said first dielectric resonator with an operation mode of said second dielectric resonator, formed on at least one of a front surface and a back surface of a crossing portion of said first and second dielectric resonators, in a diagonal direction of said crossing portion so as to disturb electric lines of force of either one of an odd mode and an even mode,
- wherein said manufacturing apparatus comprises:
- a pair of main molds having a cavity for forming said TM dual mode dielectric resonator and a penetrating hole formed in the center of said cavity so as to penetrate said main mold; and
- a pair of sub-molds formed so as to insert said penetrating hole, said sub-molds being slid in said penetrating hole in a direction towards front and back surfaces of said case so that the depth of said sub-mold pulled-into said cavity can be changed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
P05-347592 |
Dec 1993 |
JPX |
|
Parent Case Info
This is a Division of application Ser. No. 08/637,431, filed Apr. 25, 1996, now U.S. Pat. No. 5,659,275; which is a Continuation of application Ser. No. 08/359,920, filed Dec. 20, 1994, now abandoned.
US Referenced Citations (5)
Divisions (1)
|
Number |
Date |
Country |
Parent |
637431 |
Apr 1996 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
359920 |
Dec 1994 |
|