Microwave Vision Group (MVG) has developed a Pulse Synchronization Unit (PSU) for RF and antenna measurement systems. This Pulse Synchronization Unit (PSU) is a signaling control unit, designed for advanced synchronization, devices/units triggering, high speed pulse chains and arbitrary remote control applications. It uses an integrated Field-Programmable Gate Array (FPGA) allowing it to act as a master control unit capable of generating high speed pulse chains with exceptional accuracy for signaling, advanced timing, system level synchronization, and remote-control applications within high-performance and demanding RF subsystems.
The PSU generates high-speed LVDS pulse chains with nanosecond-level accuracy (approximately 2.5 ns resolution) and distributes them via four independent RJ45 output ports. Each port supports four synchronized pulse chains, enabling a total of 16 outputs. These signals are transmitted over standard shielded CAT5 cabling to peripheral boards, where they are converted into TTL signals for controlling local high-speed RF devices.
In parallel, the unit provides multiple discrete I/O interfaces, including RJ45-based optically isolated channels and a 26-pin high-density D-Sub connector with 16 I/O channels (8 inputs and 8 outputs), enabling device triggering and system state control. Connectivity is supported through an Ethernet interface (TCP/IP) for remote configuration and integration into distributed or automated environments, alongside a USB Type-C port for local access. A 24 V DC locking connector ensures stable and uninterrupted operation in demanding test conditions.
Applications
The PSU is used in RF and electromagnetic test environments where precise timing directly impacts measurement accuracy and system performance. In antenna measurement systems, it ensures that signal transmission and reception are aligned, enabling accurate characterization of antenna behavior. In phased array calibration, it synchronizes multiple antenna elements, so beamforming and steering can be correctly measured, which is essential for radar and advanced communications systems.
It is also used in radar cross-section (RCS) testing, where precise coordination between transmitted and reflected signals is required to assess how objects interact with radar. In automated test environments, the PSU supports repeatable and high-throughput testing by maintaining consistent timing across all measurement cycles, and in distributed setups, it keeps physically separated components synchronized.
These applications require strict timing control because even small timing errors can lead to incorrect measurements, system drift, or inconsistent results. By providing deterministic synchronization and coordinated triggering across devices, the PSU ensures that complex RF systems operate as a unified and repeatable test environment.
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