This document provides comprehensive specifications for the HLK-AT2 PCB antenna, manufactured by Shenzhen Haiqi Electronic Technology Co. The antenna is designed for operation within the 2402-2480MHz frequency band, commonly used for Bluetooth and Wi-Fi applications. The document details the antenna's type, model, and manufacturer information, along with performance metrics such as return loss and gain at specific frequencies (2.402GHz, 2.441GHz, and 2.480GHz).
The document includes detailed radiation patterns in XZ, YZ, and XY planes, illustrating the antenna's directional characteristics and polarization. These patterns are crucial for understanding the antenna's performance in different orientations. Additionally, the return loss graph provides insights into the antenna's impedance matching and efficiency across the specified frequency range. The document also includes a table summarizing gain measurements for vertical and horizontal polarizations, along with corresponding angles for maximum gain.