This application note discusses how to use VNAs for time domain measurements, as well as how the time and frequency domain relate, and what to look out for when measuring them.
There is a driving need for more accurate and compact waveguide components at higher frequencies, while maintaining cost-effective solutions. This application note presents a handful of benchmark simulations of waveguide components performed with FEKO.
Channel Environment Replicator (CER) applications simulate and recreate outdoor environments in which radar systems must operate. It’s a much less expensive testing method when compared to the potential complications encountered in more traditional field testing, though testing a moving target in such an application isn’t all that simple.
Tactical radios typically use frequency hopping in order to minimize interference and jamming threats. However, when a frequency hopping technique is applied, the radio may interfere with adjacent signal bands or inband communications technologies. This application note explains the benefits of using a Rohde & Schwarz signal and spectrum analyzer (with realtime option) to enable wideband signal analysis and high probability of intercept in the testing of radios in a frequency hopping mode.
Nearly all tests in accordance with the Bluetooth low energy test specification V4.0  can be performed using the R&S®CBT alone. Some tests additionally call for signal generators to provide interference signals. This application note describes the tests performed with additional equipment and presents straightforward solutions based on the R&S®CBTgo software.