3672 Series Vector Network Analyzers include 3672A (10MHz～13.5GHz), 3672B (10MHz～26.5GHz), 3672C (10MHz～43.5GHz), 3672D (10MHz～50GHz) and 3672E (10MHz～67GHz). In terms of hardware, comparing to last generation, the brand-new design concept and technical proposal have upgraded key performance indexes (KPI) of the complete machine such as sweep speed and dynamic range etc.; in terms of software, the embedded computer system (ECS) with high-performance microprocessor chip and the platform based on Windows operating system has greatly improved interconnectivity and usability of the complete machine. 3672 analyzers provide multiple calibration types including frequency response, single port, response isolation, enhanced response and full dual-port, electronic calibration etc., offer various display formats such as logarithmic amplitude, linear amplitude, standing-wave, phase, group delay, Smith chart and polar coordinates, etc. They are designed with several standard interfaces: USB, LAN, GPIB and VGA etc. Besides all measurement functions same as traditional vector network analyzer, through configuration of functional options, 3672 analyzers are also capable of multifunctional & compre