SPE-11-8-092/D Page 2 of 19

1. Introduction

This specification covers the Dielectric PIFA Antenna for 2400-2484MHz,

covering such applications as Wi-Fi, Bluetooth and Zigbee. A ceramic

dielectric

PIFA antenna offers smallest footprint, superior gain characteristics and

improved isolation over traditional PCB based antennas. This antenna has

been developed for the top left hand corner edge of the component side of

the Board (bottom right corner edge), the antenna has to be positioned on a

non-ground (copper/metal free) area with the feed-point matched direct to

the module. Please refer to Recommended Foot print Diagram (8.0 Page 13.).

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.