Broadband Capacitor Electrode Stacking for Adjustable Capacitance
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Solution Overview
Problem
Conventional broadband capacitors face challenges in adjusting capacitance values due to limited flexibility in the area of the main electrode, which restricts their ability to effectively change capacitance.
Innovation Solution
A broadband capacitor design featuring a laminate structure with alternately stacked electrode sets, including main electrodes and side electrodes, and the use of floating electrodes above and under the laminate to enhance capacitance and reduce resonance levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the main electrode area is increased to increase capacitance, then the capacitance value increases, but the device area increases
Solution Approach 1:
The patent introduces floating electrodes positioned above and below the laminate structure, utilizing the vertical dimension (third dimension) to increase capacitance. By stacking multiple electrode sets in alternating patterns and adding floating electrodes at the top and bottom, the effective electrode area is increased without expanding the planar footprint of the device.
Solution Approach 2:
The patent employs a nested structure where multiple electrode sets are stacked within a compact laminate. Each electrode set contains main electrodes and side electrodes arranged in alternating patterns, creating a space-efficient nested configuration that maximizes capacitance within a small volume.
2Ease of manufacture
If the electrode configuration is simplified to reduce device complexity, then the manufacturing process becomes easier, but the ability to adjust capacitance values is reduced
Solution Approach 1:
The patent creates an adjustable capacitance structure by making the electrode connections dynamic. The side electrodes can be selectively connected to different external electrodes through switches or connection mechanisms, allowing the capacitance value to be adjusted by changing which electrodes are connected, without complicating the basic laminate stacking process.
Solution Approach 2:
The electrode structure is segmented into multiple independent electrode sets with main electrodes and side electrodes. This segmentation allows selective connection and disconnection of different electrode groups, providing capacitance adjustment capability while keeping each individual electrode set simple and easy to manufacture.
3Quantity of substance
If multiple electrode sets are stacked to increase capacitance, then the capacitance value increases, but the device height increases
Solution Approach 1:
The patent merges multiple electrode sets into a single integrated laminate structure. By alternating the arrangement of different electrode sets and using shared external electrodes, the total capacitance is achieved without requiring proportional increases in device height, as multiple electrode pairs share the same vertical space.
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 allows for increased capacitance within a small area, improved broadband characteristics, and reduced resonance frequency and levels, enabling flexible adjustment of capacitance values while maintaining performance across a wide frequency band.
Implementation Method 1
The conventional broadband capacitors form a primary capacitance through overlapping between the main electrodes, and form a secondary capacitance between the C-type electrode and the main electrode to increase the capacitance
Implementation Method 2
a dielectric having a laminate in which a plurality of electrode sets are stacked
Data Source
AI summary
Disclosed is a broadband capacitor in which an electrode unit comprises a main electrode and a plurality of side electrodes so as to facilitate changing of capacitance value. The disclosed broadband capacitor is formed by alternately stacking a first electrode set, which comprises a first main electrode and a plurality of side electrodes spaced apart from the first main electrode, and a second electrode set, which comprises a second main electrode and a plurality of side electrodes spaced apart from the second main electrode.