Wound Inductive-Capacitive Filter Assembly for Low-Loss Bandstop Control
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Solution Overview
Problem
Conventional bandstop filters are large, costly, and difficult to construct, especially for high power applications, and they face challenges in achieving precise bandstop characteristics due to parasitic effects and impedance limitations, which can lead to significant resistive losses and signal attenuation.
Innovation Solution
The development of inductive-capacitive filters that eliminate the need for discrete inductors and capacitors, allowing for smaller size, lower costs, and easier manufacturing, with the ability to tune bandstop characteristics precisely, minimizing resistive losses by using an insulating-conductive strip wound around a winding axis to form a plurality of turns, and optionally combining filters in a single package.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional discrete inductor and capacitor components are used to construct bandstop filters, then the filters can achieve basic bandstop characteristics, but the filters become large in size, costly, and difficult to construct
Solution Approach 1:
The patent combines the inductor and capacitor into a single integrated component structure where a conductive strip is wound around an insulating core to form both inductive and capacitive elements in one unit. This eliminates the need for separate discrete inductor and capacitor components, thereby reducing device complexity and construction difficulty while maintaining precise bandstop characteristics through unified design and tuning.
2Reliability
If discrete inductor and capacitor components are used in bandstop filters, then the filters can block signals within the specified frequency band, but significant resistive losses and signal attenuation occur due to impedance limitations
Solution Approach 1:
The patent optimizes the electrical parameters by integrating the inductive and capacitive elements with complementary impedance characteristics. The wound conductive strip structure allows for precise control of inductance and capacitance values, enabling impedance matching that minimizes resistive losses and signal attenuation while maintaining effective bandstop filtering performance.
3Power
If conventional bandstop filters are designed for high power radio frequency applications, then the filters can deliver high power signals, but the filters become even larger and more difficult to construct
Solution Approach 1:
The patent integrates multiple filter functions into a single compact component that can handle high power radio frequency signals. The wound strip structure with insulating core provides both inductive and capacitive functionality in one unit, significantly reducing the volume required for high power bandstop filtering compared to conventional discrete component assemblies.
4Adaptability or versatility
If multiple bandstop filters are used for multi-load applications, then each load can have selective signal elimination requirements met, but each filter interferes with the other filters and increases system complexity
Solution Approach 1:
The patent designs the integrated inductive-capacitive filter with adjustable parameters that allow a single filter design to serve multiple different load requirements. By tuning the wound strip configuration, the same basic filter structure can be adapted to provide selective signal elimination for different frequency bands and load types, reducing the need for multiple separate filters and thereby decreasing system complexity.
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 solution enables the creation of compact, cost-effective bandstop filters with precise bandstop characteristics, minimizing resistive losses and signal attenuation, and allowing for flexible design to support various applications by varying the number of turns, aperture size, and material properties.
Implementation Method 1
an insulating-conductive strip 102 wound around a winding axis 104 to form a plurality of turns 106
Implementation Method 2
inductive-capacitive filters and associated systems and methods
Implementation Method 3
block electrical signals having frequencies within a predetermined frequency band
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An inductive-capacitive filter includes a first insulating-conductive strip wound around a winding axis, where the first insulating-conductive strip includes a first conductive strip joined with a first insulating strip. An inductive-capacitive filter assembly includes a first and a second insulating-conductive strip concentrically wound around a winding axis, the first insulating-conductive strip including a first conductive strip joined with a first insulating strip, and the second insulating-conductive strip including a second conductive strip joined with a second insulating strip.