High-Frequency Signal Stability in Transmission Line Structures
Here’s PatSnap Eureka !
Summary
Problems
Conventional transmission line connecting structures for high-frequency signals suffer from unstable coupling properties and increased manufacturing costs due to resonance frequency variations influenced by packaging and measurement precision issues, limiting design freedom.
Innovation solutions
A transmission line connecting structure with a dielectric substrate, slot lines, and resonators, where stubs are used to suppress signal leakage between electrodes, with the stub length set to approximately λg_odd/4 and the resonator-stub distance set sufficiently smaller than λg_odd/2, stabilizing resonance frequency and improving design flexibility.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the front surface electrode is in contact with a conducting wall face in the package and is grounded, then the high-frequency signal leakage is suppressed, but the resonance frequency of the slot resonator becomes unstable due to short-circuiting of the gap
Why choose this principle:
A ground electrode is introduced as an intermediary element between the slot resonator and the package wall. This ground electrode is positioned to face the slot resonator with a specific gap distance, acting as a mediator that provides a controlled reference potential without directly short-circuiting the resonator gap to the package wall, thus maintaining resonance frequency stability while managing signal leakage
Principle concept:
If the front surface electrode is in contact with a conducting wall face in the package and is grounded, then the high-frequency signal leakage is suppressed, but the resonance frequency of the slot resonator becomes unstable due to short-circuiting of the gap
Why choose this principle:
The invention changes the parameter of electrode configuration by introducing a ground electrode at a specific distance from the slot resonator. By controlling the gap distance between the ground electrode and the slot resonator, the electrical characteristics are modified to prevent direct short-circuiting while maintaining proper grounding function
Application Domain
Data Source
AI summary:
A transmission line connecting structure with a dielectric substrate, slot lines, and resonators, where stubs are used to suppress signal leakage between electrodes, with the stub length set to approximately λg_odd/4 and the resonator-stub distance set sufficiently smaller than λg_odd/2, stabilizing resonance frequency and improving design flexibility.
Abstract
A transmission line having a slot line with a slot formed on a front surface electrode on a dielectric substrate, and two such slot lines are positioned with the front surface electrodes separated from one another with a gap therebetween. A slot resonator with one end open at the gap side is provided at the front edge side of each slot line, and these slot resonators are positioned so as to be capable of coupling to one another .A slot stub which is branched out from the gap side is provided on each front surface electrode. Thus, leakage of a high-frequency signal in the gap can be suppressed with the slot stub.