SPE-11-8-026/H/SS

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US Patent #9252486

1.Introduction

The FXP831 is a high efficiency, small, dual-band, dipole antenna for 2.4/4.9-6GHz

band including DSRC, V2V, WiFi, Bluetooth, Zigbee and other applications in these

bands. The FXP.831 has a peak gain of 2.5dBi at 2.4GHz and efficiencies of 56%, and

4.5dBi and 55% along bands 4.9GHz to 6GHz.

This Taoglas patent granted antenna is unique in the market because it is made from

poly-flexible material, has a tiny form factor (45*7*.01mm) and has double-sided 3M

tape for easy “peel and stick” mounting.

The cable routes conveniently directly out of the bottom of the antenna, reducing the

volume the antenna takes up in the device to an absolute minimum compared to other

designs. The FXP.831 is the ideal all-round antenna solution for squeezing into narrow

spaces and still maintaining high performance, for example on the inside top or

adjacent side applied directly to the plastic housing of LCD devices.

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