Broadband Capacitor Floating Electrodes
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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, restricting their ability to change capacitance effectively.
Innovation Solution
A broadband capacitor design featuring a dielectric with external electrodes and laminated electrode units, including floating electrodes above and below the laminate, allows for increased capacitance and flexibility in capacitance adjustment by altering the length and position of the main electrodes and floating electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the area of the main electrode is changed to adjust capacitance, then the capacitance value can be modified, but the area change range is limited due to the extension arm and C-type electrode connections
Solution Approach 1:
The electrode structure is divided into multiple independent segments: the main electrode, the extension arm, and the floating electrode. This segmentation allows each part to perform specific functions - the main electrode provides primary capacitance, the extension arm connects to external circuits, and the floating electrode adjusts capacitance without constraining the main electrode's area, thereby expanding the capacitance adjustment range while maintaining structural clarity
Solution Approach 2:
The floating electrode acts as an intermediary element between the main electrode and the external circuit. It provides an additional degree of freedom for capacitance adjustment by being positioned independently above or below the laminate, allowing capacitance modification without requiring changes to the main electrode area or extension arm configuration
2Quantity of substance
If the main electrode area is increased to increase capacitance, then capacitance value increases, but the available space for electrode placement is limited
Solution Approach 1:
The floating electrode is positioned in the vertical dimension above or below the laminate structure, rather than expanding the main electrode area in the horizontal plane. This dimensional transition allows capacitance to be increased without consuming additional lateral space, effectively decoupling capacitance value from planar area constraints
Solution Approach 2:
The floating electrode is nested within the vertical space above or below the laminate structure, utilizing the third dimension for capacitance enhancement. This nesting approach allows the capacitor to achieve higher capacitance values by stacking electrode layers vertically rather than expanding horizontally
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 capacitance while maintaining low loss across a wide frequency band, allowing for greater freedom in capacitance adjustment and reduced resonance levels through the use of multi-layered floating electrodes.
Implementation Method 1
forming a primary capacitance through overlapping between the main electrodes and forming a secondary capacitance between the C-type electrode and the main electrode
Implementation Method 2
a dielectric having an upper surface, a lower surface, a first side surface, a second side surface facing the first side surface
Data Source
AI summary
Disclosed is a broadband capacitor including floating electrodes arranged above and below a laminate in which electrode units are laminated to allow easy change of the characteristic (that is, a capacitance value) of a capacitor. The disclosed broadband capacitor comprises: a dielectric; a first external electrode; a second external electrode; a laminate, which is disposed in the dielectric and in which a plurality of electrode units are laminated; an upper floating electrode disposed in the dielectric, disposed above the laminate, and overlapping the first external electrode and the second external electrode; and a lower floating electrode disposed in the dielectric, disposed below the laminate, and overlapping the first external electrode and the second external electrode.