Antenna Array Power Control for Uneven Load Conditions
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Solution Overview
Problem
Current treatments for Alzheimer's disease and other neuro-degenerative conditions are ineffective, and existing antenna systems struggle to maintain consistent power output across antennas with varying loads, particularly in transcranial electromagnetic treatment (TEMT) devices.
Innovation Solution
The development of an antenna system with a single transmitter and a control system that adjusts power output and phase to maintain consistent radiated power across antennas with different loads, using a method that determines the actual power output of each antenna and generates adjusted control signals to achieve average power output across the array.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single transmitter is used to drive multiple antennas in an array, then device complexity is reduced, but power output consistency across antennas deteriorates due to varying loads
Solution Approach 1:
The patent implements individual power control for each antenna element in the array, allowing each antenna to receive customized power levels based on its specific load conditions and positional requirements. This local quality adjustment ensures that each antenna maintains optimal performance despite varying loads, resolving the contradiction between using a single transmitter and maintaining power consistency across the array.
Solution Approach 2:
The system dynamically adjusts the power output to each antenna element based on real-time load conditions and treatment requirements. By making the power distribution adaptive rather than static, the system can maintain consistent effective radiated power across all antennas even when individual antenna loads vary, thus resolving the contradiction between simplified transmitter architecture and power consistency.
2Area of stationary object
If power is distributed to multiple antennas simultaneously, then treatment coverage is improved, but power control precision deteriorates due to varying antenna loads
Solution Approach 1:
The patent changes the power distribution parameters for each antenna element based on its individual load characteristics and treatment requirements. By adjusting power levels, phases, and timing parameters individually for each antenna, the system achieves precise power control across the entire array, maintaining both wide treatment coverage and high power control precision simultaneously.
Solution Approach 2:
The system implements feedback mechanisms to monitor and adjust power distribution to each antenna element. This feedback control allows the system to compensate for varying loads and maintain precise power control across all antennas, resolving the contradiction between expanded treatment coverage and maintained power control precision.
3Adaptability or versatility
If antenna loads vary across the array, then adaptability to different treatment scenarios is improved, but power output stability deteriorates
Solution Approach 1:
The system dynamically adjusts power distribution to each antenna based on real-time load conditions and treatment requirements. This dynamic adaptation allows the system to maintain stable power output across all antennas while being flexible enough to handle varying treatment scenarios, resolving the contradiction between adaptability and power stability.
Solution Approach 2:
The patent implements individual parameter adjustment for each antenna element, allowing power levels, phases, and timing to be customized based on treatment needs. This parameter flexibility enables the system to adapt to different treatment scenarios while maintaining stable and consistent power output through active control, resolving the contradiction between versatility and stability.
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 enables consistent and stable power delivery to multiple antennas in a TEMT device, ensuring effective treatment by maintaining target output power levels despite varying antenna loads, thereby improving treatment efficacy for Alzheimer's and other neuro-degenerative diseases.
Implementation Method 1
an array of antennas (104), each antenna to emit electromagnetic waves
Data Source
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AI summary
In one example in accordance with the present disclosure, an antenna system is described. The antenna system includes an array of antennas. Each antenna emits electromagnetic waves and is presented with a load that is different from other antennas in the array. The antenna system also includes a control system. The control system includes a single transmitter to sequentially drive antenna sets, a switching device to select, for each activation period in an activation sequence, an antenna set to be driven, and a controller. The controller determines an actual power output of each antenna and generates an adjusted control signal for the single transmitter such that the output of each antenna is controlled to match a target power for that antenna, regardless of a load for the antenna.