SPE-11-8-049/E/WY

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1. OVERVIEW

The FXP73 Blue Diamond 2.4GHz Antenna works on WiFi, ZigBee, Bluetooth and ISM

band at 2.4 GHz. This antenna has been designed with a specific solution to cover the

current market applications that require rectangular form-factor, with easy installation

through a cable connection.

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 absolutely sure, contact Taoglas and we will test. Choosing a Taoglas

antenna with a higher peak gain than what is specified by the module manufacturer and

enlisting our help will ensure you are getting the best performance possible without

exceeding the peak gain limits.