EHF Repeater Gain Control Spatial Isolation
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Solution Overview
Problem
60 GHz wireless communications face challenges due to high attenuation and limited range, requiring effective methods to prevent interference and extend signal coverage while maintaining spatial isolation between received and transmitted signals.
Innovation Solution
A signal repeater system utilizing phased array antennas for beamforming and gain control, which performs signal processing operations to ensure spatial isolation and maximize signal strength, thereby reducing interference and extending the range of EHF communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 60 GHz wireless communication is used to achieve high data rates, then bandwidth utilization is improved, but signal attenuation increases due to oxygen absorption
Solution Approach 1:
A repeater device is introduced as an intermediary component between the 60 GHz transmitter and receiver. The repeater receives the attenuated signal, amplifies it through gain control, and retransmits it, effectively compensating for the high signal attenuation caused by oxygen absorption in the 60 GHz band while maintaining the high data rate capability
2Length of moving object
If signal repeater is used to extend communication range, then coverage distance is improved, but interference between received and transmitted signals increases
Solution Approach 1:
The repeater device segments the communication function into distinct receive and transmit paths with separate antenna elements. By spatially separating the reception and transmission functions and using directional beamforming, the system extends communication range while minimizing self-interference between the received and transmitted signals
Solution Approach 2:
The repeater employs directional beamforming to concentrate signal energy in specific spatial directions. By creating localized high-gain beams toward the intended receiver while nulling interference toward the transmitter, the system achieves extended range coverage with reduced interference through spatially selective signal processing
3Object-generated harmful factors
If phased array antennas with beamforming are used to achieve spatial isolation, then interference reduction is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple antenna elements into a phased array configuration and merges the functions of signal reception, amplification, and directional transmission in a single integrated repeater device. This consolidation achieves spatial isolation and interference reduction through coordinated beamforming while managing overall system complexity through functional integration
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 prevents interference and extends the range of EHF communication by using phased array antennas for beamforming and gain control, ensuring minimal interference and optimal signal transmission and reception.
Implementation Method 1
The repeater device may utilize spatial isolation to prevent and/or reduce interference between received and transmitted EHF RF signals, wherein reception and/or transmission of EHF RF signals in the repeater device may be performed via narrow beams
Implementation Method 2
60 GHz radiation is partly absorbed by oxygen in the air, leading to higher attenuation with distance
Data Source
AI summary
A repeater device may be utilized to enable forwarding extreme high frequency (EHF) communication between EHF-enabled wireless devices. The repeater device may utilize spatial isolation to prevent and/or reduce interference between received and transmitted EHF RF signals, wherein reception and/or transmission of EHF RF signals in the repeater device may be performed via narrow beams that may enable minimal interference by transmit EHF RF signals to reception of EHF RF. The repeater device may utilize phased arrays to enable performing beamforming, and signal processing operations, including shift and/or amplitude adjustment, may be performed on signals received and/or transmitted via antenna elements in the phased arrays to enable beamforming during reception and transmission of EHF RF signals. Signal processing operations performed in the repeater device may be modifiable to enable continued spatial isolation between receive and transmit EHF RF signal in the repeater device.