Have you got any 2.4GHz monopole antenna referance design to use with nrf51822 and johanson balun? thanks for you attention
Have you got any 2.4GHz monopole antenna referance design to use with nrf51822 and johanson balun? thanks for you attention
Hi Giovanni,
please check the nrf51 dongle Reference design, which uses the meander antenna. In your design place a pi-shunt before antenna for tuning.
There is no special antenna for johanson balun, actually any can do if tuned. We used the meander with johanson and st baluns as well (additional cap of 1pF / 1.5 pF was added)
Also, search the forum for "pcb antenna" there are lots of like: link text
Cheers!
Hi Giovanni,
please check the nrf51 dongle Reference design, which uses the meander antenna. In your design place a pi-shunt before antenna for tuning.
There is no special antenna for johanson balun, actually any can do if tuned. We used the meander with johanson and st baluns as well (additional cap of 1pF / 1.5 pF was added)
Also, search the forum for "pcb antenna" there are lots of like: link text
Cheers!