Datenblatt-Suchmaschine für elektronische Bauteile |
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K-LC7 Datenblatt(PDF) 5 Page - RFbeam Microwave GmbH |
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K-LC7 Datenblatt(HTML) 5 Page - RFbeam Microwave GmbH |
5 / 7 page © RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LC7 | data sheet 12/2018 - Revision C | Page 5/7 Angle measurement The angle of arrival θ of an object in front of the sen- sor can be determined by the phase difference ∆Φ of the output signals I1_Out/I2_Out or Q1_Out/Q2_Out. Use the following equation for calculation: APPLICATION INFORMATION Wavelength: l = = = 12.43 mm ƒ c 24.125 GHz 300 10 m/s l = 345 mil = 8.763 mm Antenna Spacing: v = arcsin $ % Angle of Arrival in radian: 2πl l ∆f = arcsin $ % 2π 8.763 mm 12.43 mm ∆f = arcsin( 0.2257 ∆f ) Object Radar v Figure 4: Angle of arrival Figure 5: Phase difference vs. object angle -90 -80 -70 -60 -50 -40 -30 -20 -10 0102030405060708090 Object angle in [°] -270 -240 -210 -180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180 210 240 270 Antenna Rx1 / Rx2 output phase difference |
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