Phased Array Antenna Beam Steering for RF Power Dead Spots
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Solution Overview
Problem
Existing wireless power transmission technologies face challenges in efficiently delivering power to electronic devices due to obstacles and dead spots within bounded areas, leading to loss of signal strength and the need for battery replacement or solar power, which may not be feasible in all situations.
Innovation Solution
A system utilizing a phased array antenna with a phase shifter module to transmit Radio Frequency (RF) power via RF waves, which shifts the phase of electrical signals to concentrate energy in desired directions, avoiding nulls and dead spots, and converting RF power to direct current for electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional batteries are used to power portable devices, then mobility is provided, but device size increases and battery replacement is required
Solution Approach 1:
The patent extracts the power source from the device itself by using wireless power transmission to deliver energy externally, eliminating the need for internal batteries and reducing device volume while maintaining mobility
Solution Approach 2:
The patent introduces an intermediary wireless power transmission system using phased array antennas and RF waves to transfer energy between the power source and device, enabling power delivery without physical connection or internal battery storage
2Volume of moving object
If solar power is used to power low power devices, then device size is reduced, but power availability is limited to when solar energy is present
Solution Approach 1:
The patent introduces wireless RF power transmission as an intermediary energy delivery mechanism that can provide power on-demand regardless of environmental conditions, overcoming the limitations of solar power availability
Solution Approach 2:
The patent uses phase shifting of RF signals to control the direction and concentration of power transmission, dynamically adjusting energy delivery parameters to ensure reliable power availability in various conditions
3Ease of operation
If obstacles are present in the bounded area, then signal strength is lost and dead spots are created, but wireless power transmission is needed for mobility
Solution Approach 1:
The patent implements dynamic beam steering and phase adjustment capabilities in the phased array system, allowing real-time adaptation to obstacles and movement of devices to maintain reliable power transmission throughout the bounded area
Solution Approach 2:
The patent applies phase shifting to individual antenna elements to create localized constructive interference patterns that concentrate power delivery to specific locations, overcoming dead spots and obstacles by directing energy around obstructions
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
This solution enhances the reliability and mobility of electronic devices by maintaining power delivery even in areas with obstacles, eliminating the need for battery replacement and providing power where solar energy is unavailable, while reducing the size and weight of devices.
Implementation Method 1
A transmitter includes a phase shifter module that shifts a phase of the electrical signal
Implementation Method 2
transmitting RF power from the phased array antenna to the electronic device, the RF power being transmitted via RF waves
Implementation Method 3
a conversion circuit for converting power from the source to an electrical signal having a reference phase
Implementation Method 4
a receiver connected to the electronic device for detecting the RF power and converting the RF power to direct current (DC) to be provided to the electronic device
Data Source
AI summary
A remote device powering module, system and method for providing RF power to an electronic device located in a bounded area. The remote device powering module comprises a phased array antenna and is connected to a source to convert the power to an electric signal and to apply a phase reference to the electrical signal. The electrical signal is shifted with a shifting module and phased array antenna that comprises a plurality of radiating elements generates and transmits RF power via RF waves using the phase reference and the shifted phase. The RF power is then converted by the receiver to direct-voltage to be provided to the electronic device.