Wifi Antenna and right angles

[johnnyfp]

Hi,

I'm putting together a Wifi enabled board and have a ceramic antenna positioned close to the wifi chip. The datasheet says that sweeping curves must be used to connect to the antenna and that sharp corners must be avoided to stop any reflections.

Now the circuit requires a couple of caps and inductor on the line. If I arrange the caps as shown, and try and cheat, is that still regarded as a right angle or sharp corner?

[Gustav]

Using a cap as a corner point should be fine. I have used it in a couple of designs with out any noticeable effect, and i also know TI uses it on their reference design for the CC3000 module.

[KJDS]

If you want perfection, then use a mitered corner. I really don't like putting components on corners, it just adds to the to the stray excess capacitance to ground at a right angle bend. I suspect it won't make much difference, probably less difference than placement accuracy of the antenna ceramic.