Tunable Circuit Isolation for Resonance Signal Interference
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Solution Overview
Problem
Conventional tunable devices operated at a resonance frequency often experience signal interference due to multiple circuits being coupled to a common voltage, which degrades their performance.
Innovation Solution
The tunable device includes a plurality of tunable units, each comprising a driving circuit and a frequency tunable circuit with a tunable component. The driving circuit is isolated from the frequency tunable circuit in terms of tuned frequency, allowing effective driving of the frequency tunable circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple circuits are coupled to the same common voltage in a conventional tunable device, then the device structure is simplified and easier to manufacture, but signal interference occurs which degrades the performance of the tunable device
Solution Approach 1:
The patent divides the common voltage coupling into separate voltage sources for different circuits. Specifically, the driving circuit has its own voltage source while the frequency tunable circuit has a different voltage source, segmenting the previously shared voltage supply. This segmentation prevents signal interference between circuits while maintaining manufacturing feasibility through modular circuit design.
2Reliability
If the driving circuit and frequency tunable circuit are isolated in terms of tuned frequency, then signal interference is reduced and performance is enhanced, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary coupling mechanism between the driving circuit and frequency tunable circuit. The driving circuit couples to the frequency tunable circuit through a controlled interface that allows driving signals to pass while blocking interference signals at the tuned frequency. This intermediary approach achieves circuit isolation without requiring complete physical separation, thereby managing device complexity.
Data Source
AI summary
A tunable device is provided. The tunable device includes a plurality of tunable units. Each of the plurality of tunable units includes a driving circuit and a frequency tunable circuit. The frequency tunable circuit includes a tunable component. The control terminal of the tunable component is coupled to the driving circuit, and the driving circuit and the frequency tunable circuit are isolated in terms of a tuned frequency of the frequency tunable circuit.