The PC140 is an embedded lowest profile circularly polarized (RHCP) antenna working at the 2.4GHz band for mobile Wi-Fi, Bluetooth, and ISM applications where the orientation to the other device may be unknown. The use of a circularly polarized antenna will enable a more stable and reliable link when the orientation and the direction of the antenna to the communicating device are constantly changing.

Typical applications
  • Autonomous Vehicles
  • UAV’s
  • Robotics

The PC140 antenna is made from FR4 with 57*57*0.97mm (with a double-sided adhesive), and comes standard with a 100mm 1.13 coaxial cable and IPEX connector for easy installation. The double-sided 3M adhesive allows for easy peel and stick mounting, attaching securely to non-metal surfaces. The PC140 is designed for applications at 2.4GHz that require circular polarization and low cost. This antenna has a superior axial ratio between 3.2 and 3.75 in the 2.4GHz band. This is proof of it’s strengthened circular polarization. With a peak gain of 2dBi, the PC140 antenna has a typical efficiency of more than 60% across Wi-Fi bands and is designed to be mounted directly onto a plastic or glass cover. It is an ideal choice for any device maker that desires ease of integration and needs to keep manufacturing costs down over the lifetime of a product. Cable and connector can be customized, contact your regional Taoglas sales office for support.

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 2 dBi when putting 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 2 dBi peak gain, but you don’t need to select an embedded antenna that has a peak gain of less than 2 dBi 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 3 dBi or more if available.

Once that antenna gets integrated into your device, performance will degrade below this 2 dBi peak gain due to the effects of the 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.

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