WPC25B35 TAOGLAS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 10
Technical content
SPE-14-8-113/D/WY Page 1 of 10 SPECIFICATION Part No. : WPC.25B.35 Product Name : 2dBi 25mm 2.4 GHz Patch Antenna With MMCX Female Connector Features : Ceramic Patch 25*25*4.5mm Compact Integration with On-board MMCX Female Connector ROHS Compliant Bottom Top
SPE-14-8-113/D/WY Page 2 of 10 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, depe nding 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 m onitoring 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 compe nsate 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
SPE-14-8-113/D/WY Page 3 of 10 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. Choosing a Taoglas antenna with a higher peak gain than what is specified by the module manufacturer and enlisting our help will ensure you are getting the best performance possible without exceeding the peak gain limits. 2. Specification Table No Parameter Specification
1 Frequency 2400 MHz - 2500 MHz
2 Impedance 50Ω
3 Bandwidth 100 MHz min Return Loss <-7dB
4 VSWR 2:1
5 Gain toward Zenith +3.5 dBic typ. 6 Efficiency 65% min. 7 Peak Gain 2 dBi min.
8 Polarization Broadly Linear
Coefficient（τf） 0 ± 20ppm/°C
10 Operating Temperature -40ºC to +85ºC
11 Weight 5g
*The antenna is testing in free space.
SPE-14-8-113/D/WY Page 4 of 10 3. Electrical Specification
3.1 Return Loss
3.2 Efficiency
SPE-14-8-113/D/WY Page 5 of 10
3.3 Peak Gain
3.4 Average Gain
SPE-14-8-113/D/WY Page 6 of 10
3.5 Radiation Pattern
The antenna was measured in an ETS certified Anechoic Chamber. XY Plane Y X Z X Y
SPE-14-8-113/D/WY Page 7 of 10 XZ-Plane YZ-Plane X Y Z Z
SPE-14-8-113/D/WY Page 8 of 10 4. Mechanical Drawing
SPE-14-8-113/D/WY Page 9 of 10 5. Packaging 50 pieces per Tray 200 per Box 4 x 200 – 800 pieces per Carton
SPE-14-8-113/D/WY Page 10 of 10 Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Taoglas reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly prohibited. Copyright © Taoglas Ltd.