This document provides a comprehensive antenna specification for the IBM 2.4 GHz wireless device. It details key parameters such as center frequencies at 2402 MHz, 2441 MHz, and 2480 MHz, along with their respective gain values of -1.98 dBi, -1.75 dBi, and -0.65 dBi. The maximum gain is specified as -0.65 dBi, and the antenna polarization is horizontal. The antenna is designed with an omni-directional azimuth beam pattern and has an impedance of 50 Ω.
The document includes a photo of the PCB antenna, with a length of 14 cm. Radiation patterns are provided for horizontal and vertical polarities at each of the center frequencies, showing maximum, average, and minimum gain values. The document also includes the address and company information for Shenzhen Hangshi Electronic Technology Co., Ltd.