High Power Ultra Wide Band Source

Ultra Wide Band (UWB) sources provide valuable diagnostic tools for Electro Magnetic Compatibility (EMC) and Electro Magnetic Interference (EMI) design and analysis. By radiating electronic devices or systems with UWB energy, localized resonances can be determined for a better understanding of RF coupling mechanisms, and ultimately, the vulnerabilities of the device or system. Applied Physical Electronics reports the development of an UWB system for EMI/EMC testing in both laboratory and non-laboratory environments. The system is designed to deliver field strengths exceeding 600 kV/m at 1 m, with a spectrum of 125 MHz to 1.5 GHz. The antenna portion of the system has been tested with a low-power Marx generator source to demonstrate electric field strength of approximately 60 kV/m at 3 m. Development efforts continue to advance the system to the targeted field strength of 600 kV/m at 1 m, while compacting the system footprint for portability.