The black 6-pin IC in the corner looks like it could be a SPDT RF Switch. I can't make out the markings to identify it, but I know Skyworks is pretty big in this market, so it could be one of theirs. I'm not all that sure why this would be included in the design since the antenna is strictly WiFi and not multiplexed with other RF (such as BTLE).
The second unidentified component is more than likely a passive RF low-pass filter. Again, visually identifying this to an exact part number is pretty tough, but to take a stab at it, I'd go with something from Johanson since they are big in this field, and the datasheet for their 2450LP07A0100 (http://www.johansontechnology.com/datas ... 7A0100.pdf
) looks like it's got the same footprint.
Of course, MXCHIP has probably found Asian sources of these parts in order to keep costs low, but they are probably functional equivalents of the devices made by the big players I mentioned.
Murata makes a module with the same BCM43362 chip and the block diagram published on page 5 of their datasheet supports my assumptions that the unidentified parts are an RF switch of sorts and a low-pass filter. You can have a look at it here: https://electricimp.com/docs/attachment ... 1ZV1CD.pdf
(electric imp flavor which includes on-board STM mcu)
and another version of it here:http://www.mouser.com/ds/2/281/sn8000-8 ... 514133.pdf
(murata flavor, no on-board mcu).
Hopefully my guess isn't too far off from the truth