Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Portable appliance testing wikipedia , lookup
Mains electricity wikipedia , lookup
Utility frequency wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Alternating current wikipedia , lookup
Regenerative circuit wikipedia , lookup
Electromagnetic compatibility wikipedia , lookup
Quasi-Optical Detector • Frequency Range 1001000 GHz – Silicon Lens • Performance expected to ~2 THz Responsivity 500 V/W typical – NEP ~ 10 pW/rtHz • Antenna directivity 2535 dB nom. • Sub-ns response time QOD Responsivity Testing • Use lens to fully couple source power to detector • • Responsivity (V/W) Quasi-Optical Broadband Detectors Focusing Mirror 1200 See next page for THz measurement… 1000 800 600 400 200 0 100 200 300 400 Frequency (GHz) 500 Detector Allows direct measurement of detector responsivity Waveguide coupler used to measure transmitted power www.vadiodes.com Source 1 5/23/2017 Focusing Mirror 600-900 GHz QOD Testing Quasi-Optical Detector Voltage (mV) Removable mounting plate 10 1 0.1 0.01 600 700 800 Frequency (GHz) QOD B1-04 Photo of 600-900 GHz Testing • Source • QOD • www.vadiodes.com WR-1.2ZBD B70 The measured QOD response is comparable or higher than the waveguide ZBD in the 600-900 GHz band • 1” b/n Tx & Detector 900 ZBD responsivity 500-1500 V/W over WR1.2 band QOD and ZBD measured using identical test setup • Horn to horn coupling (1” distance) with no lens • Provides a relative measurement of two detectors Excellent responsivity to > 1 THz 2 5/23/2017