SPE-15-8-046/A/AW Page 1 of 19
SPECIFICATION
PATENT PENDING
Part No.
:
WDMP.2458.A
Description
:
5dBi Embedded Dual-Band WiFi Circular Polarized
50mm Patch Antenna With SMA(F) Connector
Features
:
High efficiency Dual-band WiFi 2.4GHz / 5~6GHz
RHCP
5dBi + at 2.4GHz / 7dBi + at 5~6GHz
Military grade dielectrics & low loss substrates.
50mm x 50mm x 16.57 mm ( with connector )
50 x 50 x 7.07 mm (without connector )
Screw mount with SMA(F) ST connector
RoHS Compliant
Photo:
Front
Back
SPE-15-8-046/A/AW Page 2 of 19
1. Introduction
The WDMP.2458.A antenna with SMA(F) connector is a circular polarized dual-band
Wi-Fi antenna which consists of an advanced composite dielectric structure,
providing better performance at greater distance and a broader band frequency
range in the smallest package in the market.
Using military grade substrates, the WDMP.2458.A is aimed at unmanned systems,
such as unmanned aerial/ground vehicles (UAVs/UGVs), robotics, and ground
controllers/stations, applicable in different sectors from civilian, law enforcement, to
defence.
Taking advantage of substrates of low dielectric constant and low dissipation factor,
the WDMP.2458.A uses glass microfiber reinforced PTFE substrates to minimize
signal transmission loss in order to achieve high efficiency. It performs with high
efficiencies at WiFi bands from 2400~2500MHz and 5150~5850MHz of 74% and
67%, and with peak gains of 5.5 dBi and 7.3 dBi respectively.
Using circular polarized signals means the link is more stable for devices where the
direction of orientation is unknown or where multipath is an issue.
The WDMP.2458.A’s low profile design, equipped with a SMA(F) connector, is easy
to install inside a housing or directly onto a PCB mainboard. It has four thru-holes at
the patch corners, allowing users to fix the antenna with screws. The antenna has
passed ISO 16750 high/low-temperature test and random vibration reliability
testing.
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.