Multi-beam Amplitude and Phase Modulation Antenna Testing Application Experiment
Multi-beam Amplitude and Phase Modulation Antenna Testing Application Experiment · System Principle
The multi-beam amplitude and phase modulation antenna testing application experiment is constructed from a host computer (upper computer), the main experimental equipment vector network analyzer (VNA), a multi-beam amplitude and phase modulation module, and the TestESR110 RF and microwave teaching and research platform kit. The kit includes antenna test fixtures, antenna test jigs, teaching experimental antennas, cable assemblies, installation tools, etc.
Experimental Procedure: First, install and combine the multi-beam amplitude and phase modulation module with the phased array antenna. Mount the combined antenna as the transmitting antenna on the antenna test fixture. The excitation signal from port 1 of the vector network analyzer is delivered to the transmitting antenna via an RF cable for emission. At the receiving end, a standard gain horn antenna is mounted on a slider. Under the control of the host computer, the receiving antenna, along with the turntable on the antenna test jig, receives signals at predetermined rotation angles. The received signals are fed into port 2 of the vector
analyzer for processing. Additionally, the angle for each channel can be set using the multi-beam amplitude and phase modulation module control software. The host computer acquires raw test data from the v
ector network analyzer via the LAN bus, while simultaneously controlling the antenna turntable through the serial port bus. By rotating the turntable, measurement data from all directions of the antenna under test are collected. Post-processing is then performed to calculate the antenna’s radiation pattern parameters, plot the radiation pattern curve, and complete the radiation pattern experiment. Based on this, parameters related to antenna gain and polarization characteristics are derived, finalizing the antenna gain and polarization characteristics experiments.
This testing application experiment enables students to understand and learn:
※ RF fundamental knowledge and skills
※ Electromagnetic wave interference
※ Beamforming and beam steering, antenna verification
※ Receiver gain and phase alignment
The multi-beam amplitude and phase modulation antenna testing application experiment can be upgraded to a millimeter-wave (mmWave) phased array communication system teaching experiment. This upgraded system consists of the multi-beam amplitude and phase modulation module, phased array antenna, 28GHz CoCo antenna, amplifiers, up/down converters, signal generator, software-defined radio (SDR), etc. The mmWave phased array communication system teaching experiment kit (optional) enables the development of mmWave transmission algorithms using general-purpose programming languages such as LabVIEW, MATLAB, Python, C#, and C++. This facilitates experiments in communication sensing, data streaming, and video transmission.
This experimental test application enables students to enhance their skills in millimeter-wave-related technologies:
※ Prototyping of millimeter-wave systems and development of millimeter-wave algorithms
※ Research on beamforming techniques
Upgrades and Optimization: With fixed configurations, experimental modes can be iterated through self-developed/self-purchased/optional experimental components.
※ Provides interfaces for multi-beam amplitude and phase modulation modules, supporting secondary development
※ Offers mounting hole dimensions for antenna fixtures, allowing users to design and fabricate mounting adapters for self-developed phased-array antennas to facilitate application expansion
※ Provides functional upgrade options for the TestESR110 RF/microwave teaching and research platform kit, enabling extended experiments and applications
※ Offers functional upgrade options for multi-beam amplitude and phase modulation modules, supporting expanded experiments and applications
· Experiment Rendering 
· Main Indicators and Experimental Configuration
1.System Indicators
Operating frequency range: 26.5GHz～29.5GHz
2.Turntable Indicators
Payload: ≥0.5kg
Rotation range: -180°~180°
Rotation speed: 3°/s
3.Antenna Indicators
Phased Array Antenna: Frequency range 26.5GHz~29.5GHz
Standard Horn Antenna: Frequency range 18GHz~40GHz，Gain 10dB
Standard Horn Antenna: Frequency range 18GHz~40GHz，Gain 20dB
4.Power Supply
AC voltage: 220V±10%
Frequency: 50Hz±10%
Power: ≤400W
· Software Introduction Independent channel angle settings: Allow angle configuration for each channel during a single scan.
User-driven software: The 2D far-field measurement software simplifies parameter input and enables direct result viewing within the same interface.
Software customization: Supports versatile interface customization and modification. 
