Flat Inductor Cavity Filter for Base Station Lightning Suppression
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Solution Overview
Problem
Communication base stations are vulnerable to electrical surges from lightning strikes, which can cause significant damage and downtime, and existing solutions do not effectively provide comprehensive surge protection at high power levels.
Innovation Solution
Incorporating a filter with a flat inductor and tap pin inside a cavity within the base station to suppress alternating-current (AC) signals while allowing direct-current (DC) signals to pass through, providing a cost-effective solution for lightning suppression and surge protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surge protection devices are used, then basic lightning protection is provided, but they cannot effectively protect at high power levels over 200 W
Solution Approach 1:
The patent changes the physical parameters of the filter components, specifically using a flat inductor design with optimized dimensions and a cavity structure tuned to specific resonant frequencies. These parameter changes enable the filter to handle high power levels over 200 W while maintaining effective surge protection, resolving the contradiction between protection effectiveness and power handling capability
Solution Approach 2:
The patent employs a composite structure combining a flat inductor, capacitor, and cavity resonator system. This composite design creates a coordinated impedance network that can dissipate high power surges while maintaining protection effectiveness, allowing the system to operate reliably at power levels exceeding 200 W
2Reliability
If comprehensive surge protection is implemented, then lightning damage is reduced, but system complexity and cost increase
Solution Approach 1:
The patent merges multiple protection functions into a single integrated filter assembly. The flat inductor, capacitor, and cavity resonator are combined into one compact unit that provides comprehensive surge protection, lightning suppression, and high power handling in a single device, reducing overall system complexity while maintaining reliability
Solution Approach 2:
The filter assembly is designed to perform multiple functions simultaneously: it provides surge protection, lightning suppression, and high power level handling capability. This multi-functional design eliminates the need for separate protection devices, reducing system complexity and cost while maintaining comprehensive protection
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
The solution effectively protects communication base stations from lightning and high power surges, ensuring continuous operation at high power levels without the need for costly modifications, thereby reducing equipment damage and downtime.
Implementation Method 1
a filter with DC pass including a flat inductor, a cost-effective solution for lightning suppression and surge protection may be provided
Data Source
AI summary
Various embodiments relate to a base station element and related method of suppressing an alternating-current (AC) portion of a signal. A base station element includes a filter capable of lightning suppression through the use of an LC filter that suppresses an AC portion of a received signal while passing a DC portion of the signal. The LC filter includes a flat inductor disposed in a cavity of the base station. The flat inductor may be connected to other electrical components disposed in the cavity of the base station to complete the electrical circuit. In some embodiments, the flat inductor may be produced from one material through photo-etching and may also include snap in or snap on connectors on one or both ends to enable galvanic contact with other components like a tap pin or a printed circuit board (PCB) without requiring attachment through soldering.