Microwave ferrite resonator mounting structure having reduced mechanical vibration sensitivity
AssigneeVerticom, Inc.
InventorsRonald A. Parrott, Christopher L. London
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Abstract
A coupling structure for a ferrite-based resonator comprises a short, stiff mounting rod and ferrite sphere are mechanically coupled to a substrate that provides support for a stiff coupling loop. The structure reduces differential movement between the sphere and the coupling loop, thereby reducing vibration-induced degradation of resonator performance. This resonator structure may be used in tunable, wideband oscillator, filter, or amplifier circuits, for example. In one embodiment, the mounting rod is a poor thermal conductor, thereby thermally isolating the sphere, which becomes nearly isothermal.
Claims4
A resonator structure for operating within a magnetic circuit, said resonator structure comprising:
- an assembly holder with a support member;
- a ferrite resonator element removably coupled to the assembly holder;
- a substrate coupled to the assembly holder, the substrate including a coupling loop disposed in proximity to the ferrite resonator;
- and
- a base coupled to the support member of the assembly holder such that both the ferrite resonator element and the coupling loop are supported from the base by the support member.
A resonator structure comprising:
- an assembly holder;
- a ferrite resonator element removably coupled to the assembly holder;
- a substrate coupled to the assembly holder, the substrate including a coupling loop disposed in proximity to the ferrite resonator, and
- a base coupled to the assembly holder, the ferrite resonator, and the substrate and the coupling loop by
- a cantilever support member.
Dependencies are inferred from the claim text.