National Instruments. has filed a patent for a reflectometer with two directional couplers placed parallel to each other on a signal line, reducing size and signal loss. This configuration enhances output power and dynamic range in vector network analyzer systems. GlobalData’s report on National Instruments gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on National Instruments, Digital twins was a key innovation area identified from patents. National Instruments's grant share as of January 2024 was 80%. Grant share is based on the ratio of number of grants to total number of patents.
Reflectometer with parallel directional couplers for signal power measurement
The patent application (Publication Number: US20230393180A1) describes a reflectometer with a unique configuration involving directional couplers and signal lines. The reflectometer includes a first port and a second port, with directional couplers positioned on opposite sides of a signal line section. These directional couplers are designed to couple signal power from one end of the signal line to the respective ports, enabling the measurement of signal reflections and power flow.
Furthermore, the reflectometer can be part of a larger measurement system, such as a vector network analyzer (VNA) system. In this system, multiple reflectometers are associated with signal lines and ports, allowing for comprehensive signal analysis. Each reflectometer within the VNA system includes additional ports and terminations to minimize signal reflections and optimize signal measurement accuracy. The physical length of the reflectometer is also carefully designed to ensure optimal performance at the operating frequencies. Overall, the patent application outlines a sophisticated reflectometer design suitable for precise signal analysis in various measurement applications, particularly in VNA systems.
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