Adaptive UWB Antenna Filtering for Multi-Band Interference Suppression
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Solution Overview
Problem
The increasing intensity of wireless communication bands, particularly with 4G, 5G, Bluetooth, WiMAX, and WiFi, leads to interference with UWB systems, necessitating effective anti-interference technologies to ensure proper operation without increasing system size, complexity, or cost.
Innovation Solution
An adaptive method for a multi-order multi-band anti-interference intelligent UWB antenna that dynamically switches between single-band, double-band, and triple-band filtering schemes using bandstop filtering switches controlled by an MCU, allowing for intelligent reconfiguration to suppress external interference signals across different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple bandstop filters are introduced to suppress interference from different narrow-band systems, then anti-interference performance is improved, but system size, complexity and cost increase
Solution Approach 1:
The patent implements a multi-order multi-band filtering switch that can dynamically configure different filtering schemes (single-band, double-band, triple-band) to handle multiple interference scenarios with a single device. This universal filtering structure replaces the need for multiple separate bandstop filters, thereby maintaining anti-interference performance while reducing system complexity and cost
Solution Approach 2:
The patent employs dynamic switching between different filtering orders and bands based on detected interference characteristics. The filtering scheme adapts in real-time by switching between first-order, second-order, and third-order filtering configurations, allowing the system to optimize anti-interference performance for each specific interference scenario without requiring all filters to be active simultaneously
2Reliability
If multiple cascaded bandstop filters are used to improve anti-interference effect, then suppression capability is improved, but system size increases
Solution Approach 1:
The patent integrates first-order, second-order, and third-order filtering structures within a nested configuration where lower-order filters are embedded within higher-order filter frameworks. This nesting allows the system to achieve high-order suppression capability without proportionally increasing physical size, as the filtering stages share common structural elements and can be implemented in a compact integrated manner
3Adaptability or versatility
If multiple bandstop filters are introduced to correspond to different frequencies, then anti-interference coverage is improved, but device complexity increases
Solution Approach 1:
The patent segments the interference suppression function into distinct filtering orders (first-order, second-order, third-order) and frequency bands (single-band, double-band, triple-band), each handled by dedicated switching configurations. This segmentation allows the complex multi-band filtering task to be divided into manageable modules that can be selectively activated based on interference requirements, reducing the operational complexity despite covering multiple frequency bands
Data Source
AI summary
The present invention provides an adaptive method for a multi-order multi-band anti-interference intelligent UWB antenna, comprising: acquiring a band of an interference source, wherein the band of the interference source comprises a single band, a double band and a triple band; when the interference source is a single band, starting a single-band first-order filtering interference suppression scheme; when the single-band first-order filtering interference suppression scheme does not reach a standard, starting a single-band second-order filtering interference suppression scheme; when the single-band second-order filtering interference suppression scheme does not reach the standard, starting a single-band third-order filtering interference suppression scheme; when the interference source is a double band, starting a double-band first-order filtering interference suppression scheme; when the double-band first-order filtering interference suppression scheme does not reach the standard, starting a double-band second-order filtering interference suppression scheme; and when the interference source is a triple band, starting a triple-band third-order filtering interference suppression scheme. The present invention provides an adaptive method for a multi-order multi-band anti-interference intelligent UWB antenna, which achieves the suppression of external interference signals by the multi-order multi-band of the UWB receiver.