The 2118316-1 is a small embedded surface-mount antenna designed for IEEE 802.11 a/g/n/ac Wi-Fi products operating across the 4900–5875 MHz frequency range. It features a peak gain of +4.9 dBi, linear polarization, and omni-directional azimuth beamwidth, with a VSWR less than 2.5:1 and 50 Ohms unbalanced feed point impedance. The antenna has a compact size of 11.00 mm × 4.25 mm × 4.90 mm, weighs 0.2 g, and can handle 3 Watts continuous wave power, with an operating temperature range of -40°C to +85°C. It requires minimal or no matching circuits and is available in tape & reel format for automatic mounting, making it ideal for developers seeking adjustment-free, reliable antenna technology for PCB integration with a suggested minimum ground plane length of 15 mm from the antenna feed.