SPE-12-8-013/E/ZL

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1.Overview

The FXP70 Freedom 2.4GHz Antenna works on WiFi, ZigBee, Bluetooth and ISM band

at 2.4GHz. This antenna has been designed as a general solution to cover the current

market applications, with easy installation through a cable connection. The antenna

has been designed to work on different plastics material and thickness. We have

selected a piece of ABS plastic with 1.5 mm of thickness as a baseline for testing.

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 don’t 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 device housing. If you want to be