Shelter Unit Design for Phase Stability in RF Transmitters
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Solution Overview
Problem
Conventional methods for maintaining phase stability of intermediate frequency signals in transmitters either increase power consumption or are not suitable for multi-scenario applications, as they involve changing the load during transmission unit switching or compensating for phase changes after RF and IF mixing.
Innovation Solution
A shelter unit determining method and apparatus that simulates a high-frequency circuit model to determine the size of a shelter unit based on phase stability indications, allowing for capacitance compensation without increasing power consumption, by using a simulation module to design the shelter unit in an actual circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the turn-on and turn-off of the transmission unit are set at an output end with signal shorting to achieve ATT function, then the phase of intermediate frequency signal remains stable, but power consumption increases
Solution Approach 1:
A shelter unit (dummy transmission unit) is introduced as an intermediary component that remains constantly on to provide a stable load. The actual transmission unit can then switch without affecting phase stability, as the shelter unit compensates for load changes. This resolves the contradiction by using an additional component that enables phase stability without requiring the main transmission unit to maintain stable loading during switching.
Solution Approach 2:
The invention changes the parameter of load configuration by adding a parallel transmission unit (shelter unit) that operates in a constant state. This parameter change allows the system to achieve phase stability through load compensation rather than through signal shorting, thereby reducing power consumption while maintaining phase stability.
2Stability of the object's composition
If an additional compensation unit is added to the output side of the transmission unit to compensate for phase change, then phase stability is improved, but device complexity increases
Solution Approach 1:
The shelter unit serves multiple functions: it provides load compensation, maintains phase stability, and enables the main transmission unit to switch without affecting signal integrity. By making the shelter unit multi-functional, the invention reduces the need for separate compensation circuits, thereby reducing overall device complexity while maintaining phase stability.
Solution Approach 2:
The transmission system is segmented into a main transmission unit and a shelter unit, each with specific functions. The shelter unit handles load compensation and phase stability, while the main unit handles signal transmission. This segmentation allows for simpler individual components rather than a single complex compensation circuit.
3Use of energy by moving object
If the load changes during transmission unit switching to achieve ATT function, then power consumption is reduced, but phase stability deteriorates
Solution Approach 1:
The shelter unit acts as a counterweight to the load changes caused by transmission unit switching. When the main transmission unit turns off to reduce power consumption, the shelter unit remains on to compensate for the load change, preventing phase instability. This counterbalancing approach allows power consumption reduction while maintaining phase stability.
Data Source
AI summary
Provided are a shelter unit determining method and apparatus, a device, and a storage medium. The method includes: simulating a high frequency circuit model through simulation software to obtain a simulation result; and determining a size of a shelter unit in a high frequency circuit according to the simulation result and a phase stability indication. In this manner, a shelter unit can be designed in an actual circuit based on a determined size, thereby implementing capacitance compensation without increasing the power consumption of a system.