Low-Profile Medium-Wave Antenna Phase Control for Higher Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional crossed-field antennas (CFAs) for long and medium wave broadcasting do not achieve the expected efficiency levels, necessitating a design that maintains size advantages while enhancing efficiency.
Innovation Solution
A low-profile medium wave transmitting system with separate power and phase control for each radiator, utilizing RF amplifiers and a control module to adjust the delta phase and power output of E-cylinder and D-plate radiators, supported by environmental and far field sensor feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional crossed-field antenna designs are used, then the antenna achieves a reduced geographical footprint, but the efficiency does not meet initial expectations
Solution Approach 1:
The patent implements dynamic control of the crossed-field antenna system by using multiple amplifiers with independent power and phase control, allowing the system to adaptively optimize its performance. The control module continuously adjusts the delta phase and power output based on feedback from environmental and far field sensors, enabling the antenna to maintain high efficiency across varying operating conditions while preserving its compact footprint.
2Reliability
If separate power and phase control for each radiator is implemented, then efficiency and power output are improved, but device complexity increases
Solution Approach 1:
The patent divides the antenna system into separate radiator components (E-cylinder and D-plate), each with its own amplifier and control circuitry. This segmentation allows independent optimization of each radiator's power and phase characteristics, improving overall efficiency while making the complex control functions modular and manageable through distributed control architecture.
Solution Approach 2:
The control module receives feedback from environmental sensors and far field sensors, using this information to dynamically adjust the power and phase settings of each amplifier. This closed-loop feedback system automates the optimization process, reducing the need for manual intervention and simplifying operation despite the underlying system complexity.
3Productivity
If control module adjusts delta phase and power output based on sensor feedback, then signal transmission is optimized, but system complexity increases
Solution Approach 1:
Environmental sensors monitor conditions such as temperature, humidity, and atmospheric pressure, while far field sensors measure the actual transmitted signal characteristics. The control module processes this feedback information and automatically adjusts the delta phase and power output of the amplifiers to optimize signal transmission quality, creating a self-regulating system that maintains high performance without requiring constant manual adjustment.
Solution Approach 2:
The system performs self-optimization by using its own sensors to monitor performance and automatically adjusting its parameters through the control module. This self-service capability allows the antenna system to maintain optimal signal transmission quality autonomously, reducing the need for external intervention and operational complexity.
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
Improves efficiency and power output of the antenna system by reducing electrical strain and optimizing phase and amplitude control, enabling better signal transmission with reduced land usage.
Implementation Method 1
one of which produces a high frequency electric field
Implementation Method 2
the other of which produces a high frequency magnetic field
Implementation Method 3
The electric and magnetic field lines are arranged to cross, and thereby synthesize and propagate radio waves
Data Source
AI summary
Techniques for controlling a low-profile medium wave transmitting system are provided. An example of an antenna system according to the disclosure includes a first radiator operably coupled to a first amplifier, a first modulator operably coupled to the first amplifier and configured to provide a first radio frequency signal to the first amplifier, a second radiator operably coupled to a second amplifier, a second modulator operably coupled to the second amplifier and configured to provide a second radio frequency signal to the second amplifier, a control module operably coupled to the first modulator, first amplifier, the second modulator, and the second amplifier, the control module being configured to control a delta phase value based on the first radio frequency signal and the second radio frequency signal, and control the power output of the first amplifier and the second amplifier.