Can this Antena cause the nRF51 chips to burn?

[myjtag]

Hi, I have used this antenna for my nRF51 layout, but it seems that the device is using very high currents! like in order of 200mA, I just wanted to know if this is because the antenna is a short circuit at DC or I have done something else wrong!

[myjtag]

Thanks, I have used the TI app note for their 2.4GHz antenna, also I have seen this design on a kick starter campaign containing the nRF51 parts, so I just give it a go! the design is an F inverted antenna and the feed line of antenna comes from C8 and since antenna has two ends, one of them should be grounded.

The TI app note is this swru120b

[Roger Clark]

Any reason you didnt just use the Nordic reference design ?

Antenna design is non trivial, and at these frequencies, tiny differences in track width or length or spacing make a big difference to the antenna performance

[bjorn-spockeli]

I agree with @rogerclark, the inverted F antenna is harder to get right compared to the simpler quarter length antenna used on our nRF 5x DKs.