GW593153 Datasheet, PDF (2/16 Pages) Taoglas antenna solutions – 2.4GHz/5.1~5.85GHz 3dBi Screw mount Dipole Antenna

1. Introduction
The GW.59 dipole RP-SMA plug mount antenna is ideal for 2.4GHz/5.15~5.85GHz
wireless applications such as Bluetooth and Wireless LAN. At 156mm in length
omni-directional 3dBi gain across all bands ensures constant reception and
transmission. The antenna structure is designed for robust handling and the housing is
made with TPU giving superior environmental reliability and a quality finish. The
antenna can be rotated 90 degrees on the base hinge for ease of placement.
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 plane, surrounding components, and device
housing. If you want to be absolutely sure, contact Taoglas and we will test.
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