Title :
Centimetre resolution time domain reflectometry using ultra-short millimetre wave pulses
Author :
Robertson, Duncan A. ; Bolton, David R. ; Cruickshank, Paul A.S. ; Smith, Graham M.
Author_Institution :
Sch. of Phys. & Astron., St. Andrews Univ., St Andrews, UK
Abstract :
We present a technique for making time domain reflectometry (TDR) measurements of mm-wave systems using sub-nanosecond 94GHz pulses which yields distance resolutions of a few centimetres. Pulses as short as 115ps are generated using a novel switched 7.8 to 94GHz frequency multiplier chain. Applications include the characterisation of standing waves and reflections in quasi-optical systems, the evaluation of very low return loss quasi-optical loads, and high range resolution radar.
Keywords :
frequency multipliers; reflectometers; standing wave meters; time-domain reflectometry; 115 ps; 94 GHz; TDR measurements; frequency multiplier; high range resolution radar; mm-wave systems; quasi-optical systems; reflections characterisation; return loss; standing waves characterisation; sub-nanosecond pulses; time domain reflectometry; ultra-short millimetre wave pulses; Bandwidth; Detectors; Laser radar; Optical pulse generation; Optical pulses; Pulse generation; Pulse measurements; Reflectometry; Schottky diodes; Signal resolution;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572499
