CC1310: CC1310 antenna design for 718M~830M

Hi,

You will need to retune the antenna matching network for this frequency band, please see:

• SWRA161 (AN058 – Antenna Selection Guide): https://www.ti.com/lit/swra161

• SWRA726 (Antenna Impedance Measurement and Matching): https://www.ti.com/lit/swra726

Regards,

Zack

Everything else being equal: 868 MHz vs 718 MHz, ideally you need to make the antenna slightly longer when operating on a lower frequency. 

Hi Zack,

Is it possible to provide details document or pcb file for frequency 718~830MHZ pcb antenna and matching network. Now we want to use pcb anntena to reduce cost and maintain consistency. launchpad antenna is just for 868~915MHZ. but my end customer need 718M~830Mhz. Now project is pending, I may lost 1mpcs order due to project failure, hope to get TI expert great support. Thanks! ：-（

Basically you need to ask someone to design the antenna for you. If you look in the different app notes that TI provide you will see that the resonance frequency of the antenna is dependent on the size of the ground plane, the casing, where the antenna is placed in relation to batteries and other metal objects, what the product will be mounted on etc. Hence the antenna has to be adjusted to your use case which require S11 measurements etc. If it's a 1 M opportunity, TI should be able to help you. 

Hi,

As TheGhostOf points out it involves several steps to adjust the antenna for this frequency band (measurement of your board with the casing, ect.) so it would probably be best to move to email; I have contacted your listed TI representative(s) to progress this given the potential order size.

The antenna reference designs we provide (in this frequency range) are for 868/915 MHz, so we would need to adjust the antenna accordingly for 718-830 MHz. It is unfortunately not as simple as providing a PCB file in this case.

I will mark this thread as resolved if/when this gets moved to email.

Regards,

Zack

Hi Zack,

if we can move to email, that is better to talk. Thanks!

My email is rd01@adcmicro.com