Directional characteristic and polarization of microwaves in front of a horn antenna

VP3.7.4.1
Directional characteristic and polarization of microwaves in front of a horn antenna
Directional characteristic and polarization of microwaves in front of a horn antenna

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Description

The experiment P3.7.4.1 investigates the orientation and polarization of the microwave field in front of a radiating horn antenna. Here, the field in front of the horn antenna is measured point by point in both the longitudinal and transverse directions using the E-field probe. To determine the polarization, a rotating polarization grating made of thin metal strips is used; in this apparatus, the electric field can only form perpendicular to the metal strips. The polarization grating is set up between the horn antenna and the E-field probe. This experiment shows that the electric field vector of the radiated microwaves is perpendicular to the long side of the horn radiator.

Components of equipment sets

1 73701  8  Gunn oscillator LD
1 737020  4  Gunn power supply with amplifier LD
1 73721  8  Large horn antenna LD
1 73735  8  Electric field probe LD
1 688809  8  Stand rod 245 mm, 10 mm Ø, with thread M6 LD
1 73727  4  Physics microwave accessories I LD
1 531120 Multimeter LDanalog 20 LD
2 30011  4  Saddle base LD
2 501022  4  BNC cable, 2 m LD
2 500444  4  Connecting lead 19 A, 100 cm, black LD
Additionally recommended:
1 737390  4  * Set of Microwave Absorbers LD

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

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