Space Hopping Phased Array Antenna for Interference Mitigation
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Solution Overview
Problem
Conventional wireless communication systems face interference and inefficiencies due to shared frequency spectrums, leading to suboptimal performance in environments where multiple devices operate within the same frequency band, such as the 2.4 GHz and V-band.
Innovation Solution
The implementation of a wireless communication system utilizing a phased array antenna that can configure multiple radiation patterns and hop between them based on a hopping sequence, optimizing communication paths by selecting patterns based on quality signals like signal strength and interference ratios, thereby reducing interference and improving reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple devices operate within the same frequency band (e.g., 2.4 GHz, V-band), then frequency spectrum utilization is maximized, but interference between devices increases
Solution Approach 1:
The patent introduces a spatial dimension to frequency utilization by employing a phased array antenna that can steer beams in different directions. Instead of only using frequency separation, the system combines spatial beam steering with frequency hopping to create multiple simultaneous communication channels in the 3D space-frequency domain, thereby increasing spectrum utilization while managing interference through spatial separation.
Solution Approach 2:
The system dynamically switches between different radiation patterns and frequency channels based on real-time interference conditions. The phased array antenna adapts its beam direction and the frequency hop sequence changes dynamically to avoid interfering with other devices, allowing the system to maintain high productivity while adapting to changing interference environments.
2Device complexity
If a single fixed radiation pattern is used, then device complexity is minimized, but communication reliability deteriorates in changing environments
Solution Approach 1:
The patent implements dynamic radiation pattern switching where the phased array antenna transitions between different beam directions and patterns based on the hopping sequence. This dynamic adaptation allows the system to maintain communication reliability by selecting optimal paths while avoiding fixed, potentially interfering configurations.
Solution Approach 2:
The system employs periodic frequency hopping and radiation pattern switching according to a predefined sequence. This periodic action ensures that the communication system systematically explores different spatial and frequency channels, improving reliability through diversity while maintaining manageable complexity through structured, periodic transitions rather than random changes.
3Object-affected harmful factors
If frequency hopping is implemented, then interference mitigation is improved, but system complexity increases
Solution Approach 1:
The patent merges frequency hopping with phased array beam steering to create a combined space-frequency hopping system. This combination allows the system to achieve interference mitigation through multiple mechanisms simultaneously - frequency diversity and spatial diversity - while the integrated approach manages complexity by coordinating both functions through a unified control architecture that generates the hopping sequence and manages the antenna switching.
Data Source
AI summary
A wireless transceiver includes at least one phased array antenna, that transmits an outbound RF signal containing outbound data to at least one remote transceiver and that receives an inbound RF signal containing inbound data from the at least one remote RF transceiver, wherein the at least one phased array antenna is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array antenna to hop among a plurality of radiation patterns based on a hopping sequence. At least one RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal.