CC1310的天线问题

你好。一开始我的CC1310是工作在912MHz的频率，我改成433MHz是不是得换相应的天线？如果换能推荐型号，和厂家吗？

您是自己设计的板子？433M的天线您可以使用PCB天线或外部天线

TI官网提供了相关的参考设计

http://www.ti.com/tool/CC-ANTENNA-DK-RD

433M 和868-915M的设计是不同的. 光换个天线是没用的. 另外,一般433M使用弹簧天线比较多,这个网上可以找到很多的.

可以对比433M和915M设计,TI的433M设计从如下link下载:

https://e2e.ti.com/support/wireless_connectivity/proprietary_sub_1_ghz_simpliciti/f/156/p/472245/1704838

Attached are preliminary design files. A full characterization has not yet been completed, but is expected to be completed in December 2015. The results so far looks good though.

CC13xxEM-7XD-4251_1_1_0.zip

另外,如果从成本考虑,可以参考antenna DK2, 如下Link, 很多PCB天线参考设计,包括433M天线

http://www.ti.com/tool/CC-ANTENNA-DK2?keyMatch=antenna&tisearch=Search-EN-Everything

上面的设计中就用到了PCB天线.

Description

This new antenna kit allows you to do real-life testing to find the optimal antenna for your application! The antenna kit includes 16 antennas for frequencies from 169MHz to 2.4GHz including PCB antennas, Helical antennas and Chip antennas as well as dual band band antennas for 868/915MHz combined with 2.4GHz.

The antenna kit includes a uSMA(JSC) cable to connect the wireless LaunchPads and SensorTags. The following kits are compatible with the JSC connector:

• LAUNCHXL-CC2650
• LAUNCHXL-CC1310
• LAUNCHXL-CC1350
• CC1350STK

The kit also include a uSMA(JSC)-SMA connector for connecting the kit or antennas to a standard SMA connector.

All antennas in the antenna kit are tested and characterized. The complete testing reports are included in the CC-Antenna-DK2 antenna measurement summary in the Application Notes.

Features

• 16 Antennas for 169MHz, 315MHz, 433MHz, 868MHz, 915MHz, 2.4GHz
• Compatible with LaunchPad and SensorTag
• Includes everything needed for real-life testing of antennas