Bent Conductor Resonator Slits Reduce Current Concentration
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Solution Overview
Problem
Current microwave resonator designs with bent conductor lines suffer from current concentration at the inner-side edges of the bent portions, leading to high conductor losses and potential damage to the conductor material, especially when handling high-power signals.
Innovation Solution
The design incorporates a transmission line with a conductor line having slits that narrow towards the inner-side of the bent portion, reducing current concentration and minimizing conductor losses, while maintaining high power handling capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a bent conductor line is used to mount the resonator in limited space, then the resonator can be compactly arranged, but current concentration arises at the inner-side edge of the bent portion causing high conductor loss
Solution Approach 1:
The patent applies local quality by making the slit intervals non-uniform along the bent conductor line. Specifically, the intervals are designed to be narrower at the inner-side of the bent portion and wider at the outer-side, creating localized structural variations that adapt to the current distribution pattern. This local modification redirects current flow away from the high-concentration inner-edge region, reducing conductor loss while preserving the compact bent geometry.
Solution Approach 2:
The conductor line is segmented by introducing multiple slits that divide the continuous conductive path into sections. These slits are strategically positioned with varying intervals, creating discrete current pathways that prevent excessive current concentration at the bent portion's inner edge, thereby reducing energy loss while maintaining the overall compact structure.
2Volume of moving object
If a bent conductor line is used to mount the resonator in limited space, then the resonator can be compactly arranged, but current concentration may destroy the conductive property of the conductor material
Solution Approach 1:
The non-uniform slit intervals create local structural variations that specifically address the high-stress inner-edge region of the bent conductor. By narrowing intervals at this critical location, the design distributes current more evenly, preventing excessive current density that could destroy the conductive property of superconducting or other sensitive materials, thus improving reliability.
Solution Approach 2:
The slits are pre-positioned during the design phase to proactively prevent current concentration before it can cause damage. The non-uniform interval pattern is calculated in advance to anticipate and redirect current flow away from vulnerable regions, ensuring the conductor material's conductive property is preserved under high-power conditions.
3Ease of manufacture
If uniform slit intervals are formed along the conductor line, then manufacturing is simplified, but current concentration at the inner-side edge of the bent portion cannot be effectively reduced
Solution Approach 1:
The patent transitions from uniform to non-uniform slit intervals, where the interval width varies according to the local geometric characteristics of the bent conductor line. This local differentiation optimizes current distribution by creating narrower intervals at the inner-side where current concentration occurs, effectively reducing conductor loss while remaining manufacturable through standard fabrication techniques.
Data Source
AI summary
According to an aspect of the present invention, there is provided a resonator including: a transmission line including a conductor line with a bent portion, wherein the conductor line has a plurality of slits formed therein, the slits being formed in an extending direction of the conductor line to pass through the bent portion, and wherein the slits are formed to have intervals that become narrower from an outer-side toward an inner-side of the bent portion.