SPE-14-8-113/D/WY

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1. Introduction

The WPC.25B 2.4 GHz Ceramic Patch Antenna is an excellent solution for Wi-Fi, ZigBee,

Bluetooth and ISM band at 2.4GHz. It has a PCB under the ceramic antenna with a MMCX

female mounted connector mounted to the back-side, allowing for simple installation in tight

device environments, and can be placed directly over metal ground-planes without

compromising performance.

The antenna can be stuck to the inside of a plastic enclosure by adding adhesive tape or glue.

Attaching a cable between the MMCX connector and device PCB completes the connection.

Taoglas offers many types of suitable cable assemblies from MMCX(M) to U.FL, MMCX(M) to

SMA, MMCX(M) to TNC, MMCX to Fakra, etc.

This passive patch antenna has a typical gain response from 2.5 dBi. The radiation pattern is

largely omnidirectional, with no distinct nulls, allowing for broad coverage area for wireless

applications. Higher gain can be achieved, depending on the ground-plane, the space

available, and clearance afforded. The antenna also delivers more than 70% efficiency across

the band. The WPC.25B.35’s high gain performance and excellent efficiency make it a perfect

solution for metering and remote monitoring applications. The ceramic used is robust and

reliable, can be used in automotive 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