MICROWAVE OPTICS - Granular Materials Laboratory

Microwave Optics012-04630FExp 5– PolarizationNotes – on Procedure2Answers – to Questions1/ 2 The meter reading more closely matches the intensity than it does the electric field.äNOTE: There is a consistent “glitch” in thedata at a polarization angle of about 40 and 140degrees which is not entirely explained by thenon-linearity of the receiver. (This glitch is alsopresent when the polarizer slits are used in part 5of this lab.) If you have an explanation of whythis occurs, please let us know.3 The polarizer transmits only the component of thewave parallel to the polarizer.3 Continued rotation of the receiver results in duplicationof the pattern above.54 When the transmitter and polarizer are at 90°, thewave is completely blocked. Placing a polarizer at 45°,however, introduces a component of the wave parallelto the receiver so that some of the wave is then pickedup.6 The meter reading is zero when the polarizer slits areoriented vertically or horizontally. When the slits areat 45°, the meter reads about 30% of its maximumvalue for that distance.38