CONNECT WITH MWRF
 |
March [Test & Measurement] VNA Extends Four-Port Measurements To 50 GHz VNA Extends Four-Port Measurements to 50 GHz Yassen Mikhailov Product Manager, Network Analyzers Rohde & Schwarz, 8661A Robert Fulton Dr., Columbia, MD 21046-2265; (410) 910-7800, FAX: (410) 910-7801, e-mail: info@rsa.rohde-schwarz.com, Internet: www.rohde-schwarz.com. This instrument brings high performance and four independent test... February [Test & Measurement] Converter Eases Multiport Testing From 75 To 110 GHz Characterizing multiport devices with a vector network analyzer (VNA) in the 75-to-110-GHz range has always been performed using an external frequency converter that increases the usable frequency range of the VNA. Such converters are invariably offered as options by VNA manufacturers and, while they generally offer adequate frequency coverage through millimeter-wave frequencies, are often limited in terms of test signal power and dynamic range.... May 2007 [Test & Measurement] Technique Sets Standard For Balanced VNA Tests Differential or balanced measurements performed with a vector network analyzer (VNA) are typically done with a "virtual" approach. The device under test (DUT) is stimulated with unbalanced signals as in the manner of testing single-ended devices, and the VNA mathematically transforms these unbalanced wave quantities into balanced S-parameter results.1 The approach is adequate for evaluating active or passive DUTs under small-signal (linear) conditions. But ... |
|
||||||
| CONNECT WITH MWRF |
|