Two-Group RF Circuit Time-Sharing Control for Heat Management
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Solution Overview
Problem
Existing radio frequency circuits experience heat accumulation and reduced reliability due to long-term use of a single frequency, concentrating the action area and overloading key components.
Innovation Solution
A two-group portable same-frequency or different-frequency control radio frequency circuit that employs two groups of RF circuits and a control circuit to switch signals in a time-sharing manner, using quartz crystal oscillators, harmonic suppression circuits, and antenna matching circuits to distribute power and suppress harmonics, thereby preventing heat accumulation and reducing component load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-frequency radio frequency circuit is used for long-term operation, then the circuit structure is simple, but heat accumulation occurs and reliability of key components is reduced
Solution Approach 1:
The radio frequency circuit is divided into two groups (first group with first antenna, second group with second antenna) that operate in a time-sharing manner. This segmentation allows the system to switch between different signal groups, distributing the operational load and preventing heat accumulation in a single concentrated area, thereby improving reliability while maintaining reasonable structural complexity
Solution Approach 2:
The control circuit implements periodic switching between the first and second signal groups at predetermined intervals. This periodic action ensures that no single group operates continuously, allowing heat dissipation time for each group and preventing thermal overload, thus maintaining component reliability
2Device complexity
If a single-frequency radio frequency circuit is used, then the circuit design is simple, but the action area is too concentrated causing heat accumulation
Solution Approach 1:
The circuit is segmented into two independent signal groups with separate antennas, each capable of operating independently. This spatial segmentation enlarges the action area from a single concentrated point to multiple distributed areas, reducing heat accumulation by spreading the energy distribution across different physical locations
Solution Approach 2:
The system dynamically switches between the first and second signal groups based on predetermined timing. This dynamic operation allows the action area to be distributed over time and space, preventing heat concentration in any single location while maintaining efficient circuit design
3Ease of operation
If a single-frequency radio frequency circuit is used for multiple times, then the operation is simple, but the load on key components increases reducing reliability
Solution Approach 1:
The control circuit automatically performs periodic switching between signal groups at predetermined intervals, creating a simple yet effective load distribution mechanism. This automated periodic operation reduces the load on individual key components by sharing the operational burden across two groups, thereby improving reliability without complicating the operation
Solution Approach 2:
The system is designed to automatically switch between signal groups without requiring manual intervention. The control circuit self-manages the load distribution by implementing predetermined switching intervals, making the load reduction mechanism transparent and simple to operate while effectively protecting key components from excessive load
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 effectively enlarges the action area, reduces the load on key components, and improves the reliability and application range of the radio frequency circuit by preventing heat accumulation and ensuring stable power distribution.
Implementation Method 1
The quartz crystal oscillator has good frequency stability and more accurate frequency accuracy compared to an LC crystal oscillator and a ceramic crystal oscillator
Implementation Method 2
Three capacitors filter out ripples with different frequencies in power, and small-ripple and stable power is provided for the quartz crystal oscillator
Implementation Method 3
The harmonic suppression circuit performs harmonics suppression on a signal generated by the quartz crystal oscillator, is composed of three capacitors and two inductors, filters out harmonic components and other clutter components
Implementation Method 4
The amplifier has a function of amplifying the signal
Implementation Method 5
The antenna matching circuit is composed of two inductors and one capacitor, completes impedance matching with the antenna, and can transmit the signal more efficiently
Data Source
AI summary
The present disclosure discloses a two-group portable same-frequency or different-frequency control radio frequency circuit, including two groups of radio frequency circuits and a circuit for controlling the two groups of radio frequency circuits; each group of radio frequency circuit includes a power filter circuit, a quartz crystal oscillator, a harmonic suppression circuit, an input end bias circuit, an input matching inductor, an amplifier, an output end bias circuit, an output matching circuit, a detection circuit, an antenna matching circuit, and an antenna. According to the disclosure, a controller and the detection circuits are used to perform time-sharing work on two groups of signals, and the two groups of signals are continuously switched to work, so that the problem of local heat accumulation is not caused, an action area is enlarged, and a load on key components is reduced, thereby improving the effect, the application range, and the reliability.