UWB Link Configuration With Multi-Antenna Spatial Filtering
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Solution Overview
Problem
Ultra-wideband wireless communication systems face limitations in achieving enhanced link performance due to challenges in configuring transmitters and receivers for effective signal strength and quality, particularly in indoor environments with multipath interference and spatial filtering requirements.
Innovation Solution
The implementation of ultra-wideband transmitters and receivers with multiple directive antennas oriented at 90° relative to each other, integrated baluns, and dynamic configuration of multi-pulse bundles and frequency bands, along with antenna sub-systems providing omnidirectional radiation patterns and filtering functions, to enhance signal strength and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple directive antennas are used for spatial filtering and signal strength enhancement, then link reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple directive antennas (first and second antennas) into a single UWB transceiver device with integrated circuitry. The antennas are coupled to the same transceiver circuit, allowing spatial filtering through multiple antenna elements while maintaining a unified, integrated device structure that manages complexity through consolidation rather than separate components.
Solution Approach 2:
The UWB transceiver is designed to perform multiple functions: it handles both transmission and reception, supports dynamic configuration of pulse bundles and frequency bands, and works with multiple antennas for both spatial filtering and signal enhancement. This multi-functionality reduces the need for separate specialized components, thereby managing device complexity while improving link reliability.
2Reliability
If dynamic configuration of multi-pulse bundles and frequency bands is implemented, then link quality of service is enhanced, but device complexity increases
Solution Approach 1:
The patent implements dynamic configuration capabilities where the UWB transceiver can adjust pulse bundle parameters (number of pulses, frequencies, amplitudes, time offsets) and frequency band selections in real-time based on channel conditions. This dynamic adaptation enhances link QoS by optimizing transmission parameters dynamically, while the integration within a single transceiver device manages the complexity of such flexible configuration.
3Ease of manufacture
If antenna sub-systems with omnidirectional radiation pattern and integrated filtering functions are used, then manufacturing cost is reduced, but signal directionality is compromised
Solution Approach 1:
The patent integrates filtering functions directly into the antenna sub-systems, combining what would traditionally be separate components (antennas and filters) into a unified structure. This integration reduces the number of discrete components, simplifying manufacturing and reducing costs while maintaining the ability to provide directional signal processing through the combined antenna-filter structure.
Data Source
AI summary
Ultra-Wideband (UWB) technology is a wireless technology for the transmission of large amounts of digital data as modulated coded impulses over a very wide frequency spectrum with very low power over a short distance. However, to support their deployment in a wide range of applications it would be beneficial to provide solutions which:exploit multiple directive antennas oriented in different directions to ensure spatial filtering of undesired signals and increase signal strength;exploit dynamic configuration of the multi-pulse bundles employed to transmit the bits/symbols within the packets to enhance link quality of service;exploit dynamic configuration of the band or bands which the transmitter operates upon; andexploit antenna sub-systems providing omnidirectional radiation patterns with implementations offering filtering and balun functions with small footprint and low cost.