In this article, an affordable system to demonstrate some antenna parameters is described. It consists of a transmitter (Tx) based on a voltage-controlled oscillator (VCO), a receiver (Rx) implemented with radio-frequency (RF) detectors, and a rotary mechanical arrangement based on a stepper motor. A microcontroller (?C) performs the rotation, acquires data, and manages a set of peripherals. The measurements can be observed in real time and sent to a PC. The setup is easy to operate, making it a convenient tool for demonstrations in high schools to attract students to telecommunications.

中文翻译：

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2019 IEEE AP-S 学生设计大赛-Team KnowAntenna [教育角]

在本文中，描述了一个经济实惠的系统来演示一些天线参数。它由基于压控振荡器 (VCO) 的发射器 (Tx)、使用射频 (RF) 检测器实现的接收器 (Rx) 和基于步进电机的旋转机械装置组成。微控制器 (?C) 执行旋转、获取数据并管理一组外围设备。可以实时观察测量结果并将其发送到 PC。该设置易于操作，使其成为高中演示以吸引学生使用电信的便捷工具。