Setup for studying reflection
Setup for studying refraction
Setup for microwave interference of double slits 
Intensity distribution of microwave interference of double slits
Setup for studying standingwave
Setup for demonstrating Doppler effect
Introduction
Microwave and light wave are both electromagnetic waves. They share common phenomena of all waves, such as reflection, refraction, polarization, interference, and diffraction. However, as the wavelength of a microwave is about 4 orders of magnitude larger than that of a visible light wave, their experimental phenomena and apparatus are different.
This LEEI-61 microwave demonstrator consists of a microwave transmitter, a microwave receiver with amplifier, a receiving dipole, and other accessories. It can be used to demonstrate many interesting microwave experiments. By using a protractor/ruler and a multimeter or an oscilloscope, the following demonstrations and measurements can be performed.
1. Relay of microwave
2. Transmission and absorption of microwave
3. Microwave as polarized wave
4. Reflection of microwave on a metal plate
5. Refraction of microwave
6. Interference of microwave
7. Formation of standing electromagnetic wave
8. Diffraction of microwave
9. Directional transmission of microwave
10. Doppler effect
The instruction manual contains experimental configurations, principles, step-by-step instructions, and examples of experiment results. Please click Experiment Contents to find more information about this apparatus.
Specifications
| Item | Specifications |
| Microwave transmitter | Operating frequency: 11 ± 1.1 GHz Output power: ≥10 mW Internal modulating signal: monotone, diphone, music External modulating signal: ≥1 VPP |
| Microwave receiver with amplifier | Gain of amplifier: ≥60 dB Receiving distance: ≥1 m (indicator); ≥3 m (speaker) |
Part List
| Description | Qty |
| Microwave transmitter | 1 |
| Microwave receiver with amplifier | 1 |
| Receiving dipole | 1 |
| Cable, L=1.5 m | 1 |
| Cable, L=1.2 m | 1 |
| Large metal plates, 170 mm × 150 mm | 2 |
| Small metal plate, 170 mm × 50 mm | 1 |
| Paraffin prism | 1 |
| Board for refraction 150 mm × 80 mm × 40 mm | 1 |
| Board for absorption 150 mm × 80 mm × 20 mm | 1 |
| Shelves | 4 |
| Stainless protractor/ruler (0~180°/0~250 mm) | 1 |
Setup for studying reflection
Setup for studying refraction
Setup for microwave interference of double slits
Intensity distribution of microwave interference of double slits
Setup for studying standingwave
Setup for demonstrating Doppler effect
