Dielectric resonator frequency adjusting mechanism with a resin

Details Dielectric resonator frequency adjusting mechanism with a resin Dielectric resonator frequency adjusting mechanism with a resin

1995-06-01

1998-04-07

Lee, Benny

Wave transmission lines and networks

Resonators

With tuning

411324, 411947, 411301, H01P 710

Patent

active

057369127

ABSTRACT:
A frequency adjustment mechanism for a dielectric resonator in which a change of a unloaded Q is small by adjustment of a resonating frequency, a tuning rod may be stably fixed in place after the adjustment without using any adhesives or the like and it is possible to readily perform the re-adjustment. A hole 14 is provided at an axially central portion of the dielectric resonator 11 and the tuning rod 15 is threadingly inserted into the hole 14. A female screw thread 14a is formed in an inner circumferential surface of the hole 14, and a male screw thread 15a is formed on an outer circumferential surface of the tuning rod 15. Resin layers 16 and 17 are formed on surfaces of the female screw thread 14a and the male screw thread 15a, respectively. The tuning rod 15 is made of dielectric material having a low loss and a high dielectric constant. The resin layers 16 and 17 are made of resin material having an elasticity and a low loss.

REFERENCES:
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patent: 3554258 (1971-01-01), Duffy
patent: 3973226 (1976-08-01), Affolter et al.
patent: 4285378 (1981-08-01), Wallace
patent: 4423397 (1983-12-01), Nishikawa et al.
patent: 5311160 (1994-05-01), Higuchi et al.
David Pozar, "Dielectric Resonators," Microwave Engineering, Addison-Westley Publishing Co., New York, 1990, pp. 354-358, no month.

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