Title :
Impulse response measurements with 50-GHz bandwidth
Author :
Schulz, P.A. ; Hall, K.L.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
We report on a general technique to characterize the impulse response of a microwave device or network. Very short microwave pulses that approximate an impulse are generated from a mode-locked laser impinging on a fast photodetector. Impulse response measurements have been made with a dynamic range of 40 dB for frequencies up to 50 GHz. A frequency resolution of 50 MHz has been obtained. The accuracy of the measurement is 1 dB in amplitude and 0.1 rad in phase
Keywords :
circuit testing; laser beam applications; microwave circuits; microwave devices; microwave measurement; photodetectors; transient response; 50 GHz; fast photodetector; impulse response measurements; microwave device; microwave network; mode-locked laser; short microwave pulses; Bandwidth; Dynamic range; Frequency measurement; Laser mode locking; Masers; Microwave devices; Microwave generation; Microwave theory and techniques; Optical pulse generation; Photodetectors;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
