One method to characterize the radiated microwave field from a high-power microwave (HPM) source is to measure the radiated high-level electromagnetic field in several locations at a high sampling rate registering the frequency time dependence, thus being able to determine the radiated pattern and mode. A complete free-field measurement system for measuring the magnetic field component in high-level electromagnetic fields has been developed at FOI. The system consists of a B-dot sensor and a balun, both designed and constructed at FOI. The B-dot sensor is designed as two cylindrical loop sensors with differential output. The balun is a microstrip design etched on a dual sided PTFE circuit board. Complete systems have been calibrated at SP Technical Research Institute of Sweden. A method to analyze the data from the free-field systems has been developed.
Elfsberg, Mattias,KTH, Rymd- och plasmafysik(SwePub:kth)u1fljqtr
(författare)
Larsson, Anders,Swedish Defence Research Agency (FOI) Defence & Security, Systems and Technology, Grindsjön Research Centre, Tumba, Sweden(SwePub:)
(författare)
Nyholm, Sten,Swedish Defence Research Agency (FOI) Defence & Security, Systems and Technology, Grindsjön Research Centre, Tumba, Sweden(SwePub:)
(författare)
KTH.Skolan för elektro- och systemteknik (EES).Rymd- och plasmafysik.(SwePub:kth)5988
Sammanhörande titlar
Ingår i:Proc. of Radiovetenskap och kommunikation (RVK08)s. 86-93