Radar Device Parameter Testing with Hardware-Triggered VNA Control
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Solution Overview
Problem
Existing automated test processes for radar systems are inefficient and time-consuming due to the need for software-based synchronization with conventional vector network analyzers, which are not adaptable to a broad range of electronic devices and cannot handle the large number of operational states in radar equipment.
Innovation Solution
An apparatus and method utilizing a device controller, analyzer controller, and determination controller to interact with a vector network analyzer on a hardware and firmware level, bypassing software-based synchronization, enabling rapid state setting and parameter determination of electronic devices in radar systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If software-based synchronization is used to control the vector network analyzer, then the system can be operated through standard interfaces, but the test process becomes time-consuming due to operating system latency
Solution Approach 1:
The patent introduces a dedicated controller as an intermediary device between the user interface and the vector network analyzer. This controller runs specialized firmware that directly communicates with the VNA hardware, bypassing the operating system software layer. The mediator enables fast mode measurements by eliminating OS latency while maintaining ease of operation through a standardized control interface.
Solution Approach 2:
The patent replaces the software-based control mechanism with a hardware-based control system. Instead of using software routines that incur operating system overhead, the invention implements direct hardware control through a dedicated controller with firmware that communicates via specialized protocols (such as GPIB or VXI) to the vector network analyzer, substituting the software control path with a more efficient hardware control path.
2Extent of automation
If automated testing is implemented for electronic devices with thousands of states, then the testing process can be performed systematically, but the accumulated time for all tests becomes unfeasible
Solution Approach 1:
The patent implements preliminary action by pre-configuring the vector network analyzer and controller in fast mode before testing begins. The system pre-loads test sequences and pre-establishes communication channels, so that when automated testing of multiple states is initiated, the system can rapidly cycle through all states without repeated setup overhead. This preliminary preparation enables the automated testing of thousands of states to be completed in feasible time.
Solution Approach 2:
The patent changes the operational parameters of the vector network analyzer by switching from standard measurement mode to fast mode. This parameter change involves adjusting the internal timing, trigger rates, and data acquisition settings of the VNA to operate at maximum speed. The dedicated controller manages these parameter changes dynamically, allowing the system to maintain high-speed operation throughout automated testing of multiple device states.
3Productivity
If a dedicated testing arrangement is customized for specific electronic devices, then the test speed can be reduced, but the arrangement cannot be easily used for other types of electronic devices
Solution Approach 1:
The patent achieves universality by designing a dedicated controller with a programmable architecture that can be configured for different types of electronic devices. The controller uses firmware that can be loaded and updated to support various device protocols and measurement requirements. This multi-functionality allows the same hardware platform to achieve fast testing speeds across multiple device types, including radar systems, satellite communications equipment, and other RF devices, without sacrificing adaptability.
Data Source
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AI summary
Disclosed is an apparatus (100) for determining parameters of an electronic device (10) by means of a vector network analyzer (20). The electronic device (10) is designed for a radar system and configured to be set in any one of a plurality of states. The vector network analyzer (20) is configured to run a test of the electronic device (10). The apparatus (100) comprises a device controller (no), configured to set a state of the electronic device (10), an analyzer controller (120), configured to send to the vector network analyzer (20) a test trigger signal (125) for triggering the test of the electronic device (10), and a determination controller (130), configured to determine the parameters based on setting the state of the electronic device (10), and on triggering the test of the electronic device (10).