Taoglas´ 5150-5900 MHz ceramic chip antenna is specifically designed for Wi-Fi/ WHDMI/ High Bandwidth 5GHz band applications. It is a high efficiency miniature SMD edge mounted ceramic monopole antenna with small footprint requirement. This ceramic chip antenna uses the main PCB as its ground plane, thereby increasing antenna efficiency. It is tuned for different PCB sizes by simply changing the value of the matching circuit. CA.50 antenna electrical properties are symmetrical therefore the antenna can be soldered to the board from either side. At 3.2mm*1.6mm*0.5mm, it is one of the smallest antennas available worldwide. This antenna is delivered on tape and reel. Many module manufacturers specify peak gain limits for any antennas that are to be connected to that module. Those peak gain limits are based on free-space conditions. In practice, the peak gain of an antenna tested in free-space can degrade by at least 1 or 2dBi when put inside a device. So ideally you should go for a slightly higher peak gain antenna than mentioned on the module specification to compensate for this effect, giving you better performance.