Equipment set for conducting wave optics experiments involving wavelengths in the cm range. A transmitter with a horn antenna radiates a narrow beam of linearly polarized electromagnetic waves with a wavelength of about 3 cm. The direction of polarization can be altered by rotating the antenna around the axis of propagation. To detect the waves, a horn antenna receiver and a microwave sensor are provided. A control unit converts the intensity of the signal received into a proportionally large output voltage that can be measured using a voltmeter. It is also possible to switch on an acoustic signal with a volume that is proportional to the intensity of the signal.
Oscillator frequency: 10.5 GHz

Experiment topics:

• Straight-line propagation of microwaves
• Reflection, absorption and transmission
• Shielding from microwaves
• Experiments on polarization
• Experiments on diffraction
• Experiments on refraction and interference
• Transmission of information

• Power of transmitter: 10 - 25 mW
• Internal modulator frequency: 3 kHz approx.
• Acoustic signal: Switchable
• External modulation: 100 Hz -20 kHz, 1 V max.
• Output voltage: 10 V max.
• Receiver with horn antenna: Silicon diode with resonator
• Microwave sensor: Silicon diode with resonator
• Dimensions of basic apparatus: approx. 170x200x75 mm³

• 1 Control unit
• 1 Transmitter with horn antenna
• 1 Receiver with horn antenna
• 1 Microwave probe
• 1 Microwave bench, 800 mm
• 1 Microwave bench, 400 mm with plate holder
• 1 Reflection plate 180x180 mm²
• 1 Polarization grating, 180x180 mm²
• 1 Absorption plate, fiberboard, 180x180 mm²
• 1 Paraffin prism
• 1 Stand for prism
• 1 Plate with double slit
• 1 Cover plate for double slit