Switchable Phased Array Antenna Polarization Merging
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Solution Overview
Problem
Phased array antenna systems are complex and costly due to their need for separate transmit and receive modules and fixed polarization designs, making them inflexible for applications requiring changes in polarization, which involves significant redesign and requalification costs.
Innovation Solution
A switchable transmit and receive phased array antenna (STRPAA) with a multilayer printed wiring board (MLPWB) configuration that allows for easy switching between right-hand and left-hand circular polarizations by rotating radiating elements and swapping T/R modules, enabling operation with either polarization without extensive redesign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmit and receive modules are used, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines separate transmit and receive modules into a single integrated T/R module that can switch between transmit and receive modes. This integration reduces device complexity while maintaining reliability through the use of switching mechanisms that allow the same hardware to perform both functions.
Solution Approach 2:
The T/R module is designed as a universal component that can operate in both transmit and receive modes, as well as support multiple polarization configurations. This multi-functionality eliminates the need for separate dedicated transmit and receive modules, thereby reducing overall system complexity while preserving the reliability benefits of having distinct functional paths.
2Manufacturing precision
If fixed polarization design is used, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The patent implements a switchable polarization design where the antenna system can dynamically change between different polarization configurations (e.g., right-hand circular polarization and left-hand circular polarization). This is achieved through switchable feed networks and T/R modules that can reconfigure the signal paths, allowing the system to adapt to different operational requirements while maintaining manufacturing precision through standardized switching components.
Solution Approach 2:
The system allows changes in polarization parameters by switching between different feed configurations and T/R module settings. This enables the antenna to operate with different polarization states without requiring physical redesign or remanufacturing, thus maintaining manufacturing precision while significantly improving adaptability to different mission requirements.
3Adaptability or versatility
If polarization switching capability is added, then adaptability is improved, but device complexity increases
Solution Approach 1:
The polarization switching functionality is merged into the existing T/R module architecture rather than being implemented as a separate subsystem. The switching mechanisms are integrated within the same housing and share common components with the transmit and receive paths, thereby adding adaptability while minimizing the increase in device complexity.
4Adaptability or versatility
If redesign for polarization change is performed, then adaptability is improved, but loss of time increases
Solution Approach 1:
The switchable polarization design allows the system to change polarization modes dynamically through electronic switching rather than requiring physical redesign. This enables rapid reconfiguration between different polarization configurations, significantly reducing the time required to adapt to different operational requirements compared to traditional redesign processes.
Solution Approach 2:
The system achieves polarization changes by modifying electrical parameters and signal paths through switching mechanisms rather than altering the physical structure. This allows for quick reconfiguration without remanufacturing or extensive redesign, thereby improving adaptability while minimizing time loss.
Data Source
AI summary
A switchable transmit and receive phased array antenna (“STRPAA”) is disclosed. The STRPAA includes a housing, a plurality of radiating elements, and a plurality of transmit and receive (“T/R”) modules. The STRPAA may also include either a first multilayer printed wiring board (“MLPWB”) configured to produce a first elliptical polarization or a second MLPWB configured to produce a second elliptical polarization within the housing.