nrf51822-DK with patch antenna

RE: nrf51822-DK with patch antenna

Asbjørn — Tue, 24 Mar 2015 08:26:26 GMT

Yes, it's a 50 Ohm antenna that you have there. The link to partnumber and information can be found here.

The two antennas in the two first links you used are of the same kind. So they are both 50 Ohm.

RE: nrf51822-DK with patch antenna

peter — Tue, 24 Mar 2015 03:59:35 GMT

Attached is nRF51822-DK I got.

www.dropbox.com/.../2015-03-24 11.45.18.jpg

I would like to know if the antenna come with the EVboard (as following link) is 50Ohm. www.dropbox.com/.../2015-03-24 11.55.05.jpg

I use the phone apps to measure the RSSI The PCB Antenna I use as follow www.ti.com/.../swra117d.pdf

RE: nrf51822-DK with patch antenna

Asbjørn — Thu, 19 Mar 2015 11:29:44 GMT

The PCB antenna on the kit is tuned to be 50 Ohm. How have you implemented your antenna? Could you share some drawings or screen shots of what you are working on? What do you mean by it's not working very good at all? Do you test range or how are you doing the measurements?