SPE-13-8-042/B/SS Page 2 of 9

1.Introduction

The 4.4-5.0GHz Barracuda ISM Indoor/Outdoor antenna is designed to provide

long distance coverage for Public Safety applications. Omni-directional 7dBi

gain ensures constant reception and transmission. The UV resistant coating

with fiberglass housing makes this antenna suitable to be mounted in robust

outdoor environments.

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