I have this 2.4ghz antenna. What way is the antenna supposed

>>915015
Both I'd imagine.

Looks like a patch antenna. If the metal plate there is the driven element and the PCB is the ground plane, then it's A. If it's the other way around, then B. If I had to guess I'd say B (for the lack of an apparent feed point connecting the coax to the plate), but I'd need to see the other side - ideally in clear enough detail to see traces on the PCB - to say for sure.

File: 20151215_205355.jpg (2MB, 3264x1836px) Image search: [Google]

2MB, 3264x1836px

cant see traces

File: 20151215_205344.jpg (2MB, 3264x1836px) Image search: [Google]

2MB, 3264x1836px

wires go to pcb

Anyone?

>>915015
it's a bidirectional antenna

>>915072
This. Test with laptop or phone, should be pretty obvious.

>>915523
If the wires go to the PCB, that will be driven element as >>915072 indicated. This most likely means that the metal plate is a reflector, to redirect outputted power. I believe this is the case because the power can freely radiate to the other side.

Source: Designed, calculated, modelled and build FM-antennas at university a couple of years ago.

>>915523
In that case it's B.

File: images (1).jpg (4KB, 250x201px) Image search: [Google]

4KB, 250x201px

>>915015
Its lock like is B ( down )
Metal plate is a reflector screen.
but better result you will get with double BiQuad antenna this is 5DB - 9DB in real terms.