Title :
Ultra-wideband duplexers for low and high peak power applications
Author_Institution :
R. Mil. Acad., Brussels, Belgium
Abstract :
Two different duplexers have been conceived, designed and tested that allow for using an impulse ultra-wideband (UWB) radar in a monostatic configuration. The first one, which is based on a fast GaAs SPDT switch, is usable with a low peak power transmitter (<100 mW), while the second one, completely passive, is intended for high peak power applications (up to 50 kW). Both exhibit an instantaneous bandwidth covering the frequency range (400 MHz-4 GHz) which is the most suitable frequency band for detecting buried antipersonnel landmines by means of UWB radar. These duplexers contribute to a gain of space, weight and cost, three important factors in the design of portable detection systems for humanitarian operations
Keywords :
UHF devices; antenna accessories; buried object detection; gallium arsenide; power dividers; pulsed power technology; radar equipment; remote sensing by radar; semiconductor switches; weapons; 100 mW to 50 kW; 400 MHz to 4 GHz; GaAs; UWB radar; buried antipersonnel landmines; fast GaAs SPDT switch; high peak power applications; humanitarian operations; impulse ultra-wideband radar; landmine detection; low peak power applications; monostatic configuration; portable detection systems; ultra-wideband duplexers; Bandwidth; Frequency; Gallium arsenide; Impulse testing; Landmine detection; Radar detection; Switches; Transmitters; Ultra wideband radar; Ultra wideband technology;
Conference_Titel :
Ultra-Wideband Short-Pulse Electromagnetics 4, 1998
Conference_Location :
Tel-Aviv
Print_ISBN :
0-306-46206-0
DOI :
10.1109/UWBSP.1998.818952
