Title :
An X-Band Magnetoresistive Sensor for Active Pulse Power Measurements
Author :
Vountesmeri, Valeri ; Gura, K. ; Chenakin, Alexander
Author_Institution :
Mexico National University, Centro de Instrumentos - UNAM, A.P. 70-186, Cd. Universitaria, C.P. 04510 México, D.F., Mexico. TeL: 525-622-8619, Fax: 525-622-8620, E-mail: valeri@aleph.cinstrum.unam.mx
Abstract :
A new magnetoresistive sensor for measurement of transmitted pulse power in an unmatched waveguide transmission line has been developed. The sensor has a linear dependence of output signal in a dynamic range of 40 dB at 42 kW maximum pulse power and average power level of 50 W. The output signal of the sensor is proportional to the instantaneous value of the input active power level. It displays an input pulse form in the 0.2-500 ¿s time band and has the equivalent directionality up to 30 dB for a bandwidth of 2% and up to 20 dB for a bandwidth of 8% respectively.
Keywords :
Electromagnetic fields; Electromagnetic waveguides; Magnetic field measurement; Magnetic sensors; Magnetoresistance; Microwave sensors; Power measurement; Pulse measurements; Sensor phenomena and characterization; Transmission line measurements;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337898
