SPECIFICATION Part No. : SDWA.01 Product Name : Dual-Band 2.4/5GHz Wi-Fi Ceramic SMD Antenna Features : High Efficiency/ High Peak Gain 2400 MHz to 2483 MHz - Peak Gain 4.4 dBi max 5180 MHz to 5825 MHz - Peak Gain 4.3 dBi max Low Profile 10*4*1.5mm RoHS SPE-11-8-129/H/NB Page 1 of 19 1. Introduction The SDWA.01 dual-band SMT ceramic antenna is an embedded, high efficiency, high peak gain solution for Wi-Fi 802.11n and other ISM band applications which require high-speed data rates and wide coverage areas. Designed for the 2.4 GHz and 5 GHz bands, the antenna delivers a peak gain of 3.5 dBi and 4.2 dBi, respectively. The antenna features excellent efficiency > 70% in both bands. It is designed to perform optimally mounted in the corner of a device PCB. Two SDWA.01 antennas can be used for MIMO applications. The antenna s low profile, at only 1.5mm, allows for use on extremely thin devices while still maintaining excellent performance characteristics. This antenna is delivered on Tape and Reel for SMT application. 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. Upon testing of any of our antennas with your device and a selection of appropriate layout, integration technique, or cable, Taoglas can make sure any of our antennas peak gain will be below the peak gain limits. Taoglas can then issue a specification and/or report for the selected antenna in your device that will clearly show it complying with the peak gain limits, so you can be assured you are meeting regulatory requirements for that module. For example, a module manufacturer may state that the antenna must have less than 2dBi peak gain, but you dont need to select an embedded antenna that has a peak gain of less than 2dBi in free-space. This will give you a less optimized solution. It is better to go for a slightly higher free-space peak gain of 3dBi or more if available. Once that antenna gets integrated into your device, performance will degrade below this 2dBi peak gain due to the effects of GND plane, surrounding components, and SPE-11-8-129/H/NB Page 2 of 19