1.Introduction

The FW.24 is a flexible 2.4GHz omni-directional whip antenna with an N type (M)

connector for outdoor use. It features excellent efficiency (>75%) and high peak gain

(>4 dBi) between 2400-2500MHz on a 30x30 cm ground plane.

The antenna was specifically developed for applications in outdoor monitoring systems,

such as weather monitoring, motion/vibration sensors, and pollutants monitoring.

The FW.24 works in the 2.4GHz WiFi/Bluetooth/ISM band. It has excellent

omni-directional radiation properties providing a wide coverage area in the azimuth. Its

high efficiency means that it allows your radio to consume less power than with a lower

efficiency antenna when transferring data, while also achieving better sensitivity of

reception. The antenna performs at its best while attached to a ground plane with

dimensions of at least 30x30 cm, though it can be used even without ground-plane.

The whip is made of a flexible inner steel core covered by PE so it is extremely resistant

to abrasion and springs back to its original shape if bent. The rugged design and its

housing’s IP67 rating ensure it can withstand bad weather, environmental stress and

physical shock in the field.

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