Antenna type of QM33120WDK1 development kit

Hi there. I am trying to develop on QM33120WDK1 development kit, and I saw in the code that there are 3 types of antenna:


I am reffering to …\Src\UWB\dw3000_pdoa.c

Please help me understand the antenna types, their difference, and which should I use in my QM33120WDK1 development kit ?

Another question - there is a nice calculation in “fpdoa2aoa” function, that is not present in some other code example from qorvo - I mean to “ex_01h_simple_tx_pdoa” and “ex_01h_simple_rx_pdoa” - which only has rad-deg convertion (plus some extra consstants of 1<<11 etc.)

thanks, Yair

Hi yair,

QM33120WDK1 comes with the Jolie antenna included. So it can support both channels and give you an idea about your future application.

The Mona Lisa antenna is the previous generation antenna for our old development kits. Therefore, you can neglect that part in the code.

If you want to design your own antenna or use another antenna, you need to characterize the performance of that antenna and the CUSTOM field allows you to use the characterization data.

Kind regards,

How to connect if i buy an antenna? which pin?

thank you

Hi @HSJe ,

QM33120WDK1 has two SMA female connectors which allows you to attach two antenna arrays to do PDoA.
Moreover, you can simply use RF1 port if you want to attach a single antenna. If you want to use a custom antenna you need to have SMA male connector with custom antenna.

Kind regards,

Hello, sir.

Does is work if I connect dual custom antenna with SMA male connector on RF1 and RF2 on QM33120WDK1? Will be okay to use same SDK with this custom antenna?

Thank you

Hi @hank1 ,

Yes, you can use a custom antenna with SMA male connectors. It would be ok but the current SDK is optimized for the antennas that come with the kit. Therefore, you might expect some degradation in PDoA measurement but you can fix it by postprocessing the data by using a look-up table.

Moreover, you need to use a 0.45 lambda spacing between your antennas for the specific channel that you will use.


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