Terahertz Antenna Testing Application Experiment
Terahertz Antenna Testing Application Experiment
· System Principle
The Terahertz Antenna Testing Application Experiment is constructed using an upper computer, a vector network analyzer (VNA) as the main equipment, frequency extension modules, and a TestESR110 RF/microwave teaching platform kit. The kit includes an antenna test fixture, antenna test jig, standard horn antennas, cable assemblies, installation tools, etc.
Experimental Procedure: A standard horn antenna is mounted on the antenna test fixture as the transmitting antenna. The excitation signal from Port 1 of the vector network analyzer is delivered via an RF cable to the transmitting antenna for emission. At the receiving end, another standard horn antenna is mounted on a slider. Under the control of the upper computer, the receiving antenna rotates within a set azimuth range at a specified speed via a turntable on the antenna test jig. The received signal is fed into Port 2 of the vector network analyzer for processing. At specific angular intervals, a small receiving turntable sends a trigger pulse to the vector network analyzer. Upon receiving the pulse signal, the VNA performs one acquisition of the signal from the receiving antenna. The upper computer retrieves raw test data from the VNA via the LAN bus while controlling the antenna turntable through a serial bus. By rotating the turntable, measurement data for all directions of the antenna under test (AUT) are obtained. Subsequent processing calculates the antenna’s radiation pattern parameters and plots the radiation pattern curve, completing the radiation pattern experiment. Building on the radiation pattern experiment, parameters related to antenna gain and polarization characteristics are further derived, finalizing the antenna gain and polarization characteristic experiments.
※ Terahertz Antenna Far-Field Testing Verification
※ Application of Frequency Extension Modules
· Experiment Rendering
· Main Indicators and Experimental Configuration
1.System Indicators
Operating frequency range: 67GHz～110GHz
2.Turntable Indicators
Payload: ≥0.5kg
Rotation range: -180°~180°
Rotation speed: 3°/s
3.Antenna Indicators
Standard Horn Antenna: Frequency Range 49.8GHz~75.8GHz, Gain 25dB
Standard Horn Antenna: Frequency Range 73.8GHz~110GHz, Gain25dB
4.Power Supply
AC voltage: 220V±10%
Frequency: 50Hz±10%
Power: ≤400W
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· Software Introduction
Supports multi-band scanning: Allows measurements at multiple frequencies in a single scan, providing rapid and comprehensive results.
User-driven software: The 2D far-field measurement software simplifies parameter input and enables direct viewing of results within the same interface.
Software customization: Supports versatile interface customization and modification. 
