Resonator With Overlapping Metal And Ceramic Rings
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Solution Overview
Problem
Current resonator configurations, such as ceramic resonators, face challenges in providing mechanical support and efficient electrical connections, especially in radio frequency applications, where ceramic materials are heavy and difficult to tune automatically, and metallic contacts can cause issues.
Innovation Solution
A resonator design featuring a metal cavity with overlapping rings, where one ring is made of metal and the other of ceramic, both coated with silver for electrical connections, providing mechanical support and adjustable tuning, and allowing for air gaps to accommodate thermal expansion differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ceramic materials are used in resonators, then electrical connection and mechanical support are provided, but the resonator becomes heavy and difficult to tune automatically
Solution Approach 1:
The patent combines metal cavity with ceramic rings to create a composite structure that leverages the electrical conductivity and mechanical strength of metal while incorporating the dielectric properties of ceramic, achieving both lightweight construction and reliable electrical connection
2Reliability
If metallic contacts are used in ceramic resonators, then electrical connections are established, but tuning automation becomes difficult
Solution Approach 1:
The patent replaces traditional mechanical metallic contacts with a resonator element that can be automatically tuned via electrical or magnetic fields, eliminating the need for manual mechanical adjustment while maintaining reliable electrical connection
3Adaptability or versatility
If different materials (metal and ceramic) are used in the resonator, then thermal expansion differences must be accommodated, but structural complexity increases
Solution Approach 1:
The patent designs the resonator structure with intentional clearance or flexible mounting arrangements that allow the metal and ceramic components to expand and contract independently at different rates, accommodating thermal expansion differences without requiring complex compensation mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances mechanical support, reduces resonator size, improves performance by increasing capacitance, and accommodates thermal expansion, resulting in smaller, more reliable resonators with better temperature stability.
Implementation Method 1
A resonator comprises a metal cavity and a resonator element mounted within the metal cavity. The resonator element comprises a ceramic ring with a first metal coating on an external surface of the ceramic ring that provides an electrical connection to the metal cavity.
Implementation Method 2
the first metal coating on an external surface of the ceramic ring that provides an electrical connection to the metal cavity
Implementation Method 3
allowing for air gaps to accommodate thermal expansion differences
Data Source
AI summary
A resonator is described including: a first part of a metal cavity; a first ring extending from the first part of the metal cavity, wherein at least part of an external surface of the first supporting ring is coated with a first metal coating that provides an electrical connection to the metal cavity; a second part of the metal cavity; and a ceramic ring extending from the second part of the metal cavity. At least part of an external surface of the ceramic ring is coated with a second metal coating that provides an electrical connection to the metal cavity, wherein the first and second parts are mounted to form the metal cavity such that the first ring and the ceramic ring partially overlap such that at least part of the ceramic ring is between at least parts of the first and second metal coatings.