Cascaded RF Switch Circuit for 128-Channel Antenna Arrays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radio frequency high-speed switchers are limited by their maximum eight switching ports, making them inadequate for large-scale antenna arrays like 128-channel systems, which require more output ports and result in increased consumption and system performance issues.
Innovation Solution
A radio frequency high-speed switching control circuit and device design featuring a cascaded toggle switch chip architecture with a control module and switching module, utilizing QPC6044SQ toggle switch chips and ATXMEGA32A4-AU control chips, enabling sixteen radio frequency signal outputs and covering a 5 MHz to 6 GHz frequency range, with an RJ45 interface for power and control, and an octagonal layout for convenient wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cascading structure is used to support 128-channel large-scale antenna array, then the number of output ports increases, but consumption and system structure performance are greatly affected
Solution Approach 1:
The patent divides the large-scale antenna array into multiple sub-channels, with each sub-channel handled by a dedicated RF switch module. This segmentation allows the system to support 128 channels without requiring a single complex cascading structure, thereby reducing overall power consumption while maintaining the required number of output ports.
2Quantity of substance
If cascading structure is used to support 128-channel large-scale antenna array, then the number of output ports increases, but system structure performance deteriorates
Solution Approach 1:
The system is segmented into multiple independent RF switch modules, each handling a subset of channels. This modular approach reduces the complexity of the overall system structure compared to a single cascading structure, while still achieving support for 128 output ports through coordinated operation of the modules.
Solution Approach 2:
The patent transitions from a single-dimensional cascading structure to a multi-dimensional modular architecture. By organizing RF switch modules in a distributed manner across different dimensions (spatial arrangement, functional grouping), the system achieves high port count without the performance degradation associated with deep cascading structures.
3Adaptability or versatility
If electronic radio frequency high-speed switcher supports more output ports, then adaptability to large-scale antenna arrays improves, but control complexity increases
Solution Approach 1:
The control system is segmented to match the modular RF switch architecture. Each RF switch module can be controlled independently, and the control unit manages multiple modules through standardized interfaces. This segmentation reduces control complexity compared to managing a single large cascading structure, while maintaining adaptability to 128-channel arrays.
Solution Approach 2:
The RF switch modules are designed with universal control interfaces and standardized functionality, allowing the same module design to be reused across different channel configurations. This multi-functionality enables the system to adapt to various antenna array sizes without increasing control complexity, as the same control principles apply regardless of the number of active channels.
Data Source
AI summary
A radio frequency high-speed switching control circuit comprises: a control module, outputting a control signal according to a preset algorithm; and a switching module, connected with the control module, and switching an input radio frequency signal to different radio frequency signal output ports for outputting according to the control signal output by the control module; wherein a plurality of toggle switch chips are provided in the switching module, and the toggle switch chips are electrically connected in a cascading manner. The advantages of the present disclosure lie in that through the design of a byte logic control circuit, toggle switches are cascaded to achieve that one input signal is switched to sixteen signal outputs (SPT16) and radio frequency signals within a frequency band range of 5 MHz to 6 GHz can be covered.