This document presents a comprehensive test report for the Shengzhou Hengli external antenna, designed for operation in the 433MHz ISM band. The report details the test equipment and conditions used, including network analysis performed with Agilent 8753D and Agilent 5071B analyzers. Communication testing was conducted using Agilent E5515C and R&S CMW500 equipment. The test system setup, including the 3D anechoic chamber, is illustrated, along with the matching circuit diagram.
The antenna's standing wave ratio (SWR) is presented, demonstrating its performance across a frequency range. The antenna features a fixed external lead structure and has overall dimensions of 54.3mm x 7.6mm. The report emphasizes that all measurements were performed radiated, eliminating the need for additional antenna gain documentation. The antenna is designed to be small in size and low in cost, making it a practical solution for various applications.