Anritsu enhances broadband VNA
Staff -- Test & Measurement World, 3/1/2007
Anritsu has enhanced its Lightning Broadband ME7808C vector network analyzer (VNA), which characterizes devices over a wide 40-MHz to 110-GHz frequency range. The VNA has been redesigned to provide higher output power to drive active and passive components at optimum measurement levels, and it features improved calibration stability.
Engineers can use the ME7808C in coaxial or on-wafer environments. Among the design enhancements are the relocation of couplers inside the instrument’s multiplex combiners, improved Kelvin design bias tees, better RF and LO stability, and greater short-term and long-term calibration and measurement stability. The system now includes an option providing direct sampler access for improved raw directivity and to optimize calibration while optimizing system dynamic range.
The new multiplexing coupler/combiner allows all essential DC signals and RF sampling to be in close proximity to the device under test (DUT), further improving raw directivity as well as increasing measurement system stability. Designed into the multiplexing modules are the Kelvin bias tees for enhanced performance and sensitivity. The ME7808C has also been designed with improved phase-stable cables for better calibration and measurement stability.
The ME7808C can provide up to –13 dBm of power across the entire 40-MHz to 110-GHz frequency range, which, Anritsu says, is 9-dB better than competitive models. Power output is a significant factor in measurement accuracy because losses between the coax output port and the probe tips can be dramatic.
The ME7808C can be configured for three configurations: a 40-MHz to 110-GHz 1-mm broadband coaxial system; a 65-GHz V-connector coaxial system; and a 65-GHz to 110-GHz extended W-band waveguide mm-wave system. The system may be upgraded to include a range of banded mm-wave modules, which can be used to extend the frequency range beyond 110 GHz in stand-alone waveguide bands. In addition, it is now possible to extend the maximum waveguide frequency range up to 500 GHz in a WR-2.2 waveguide.
Base price: $384,455. Anritsu, www.us.anritsu.com.
