Arrow [Q] Boosting WiFi reception with this adapter ?

The WiFi reception on the 8.4" tablet seems pretty poor compare to my HTC One (m7), so I need a boost when in the garden or in a hotel etc.

Could anyone give me a quick answer and tell me would this adapter or similar would boost the reception capabilities of the 8.4" ?
It seems to me that I would just connect it via OTG and and select Ethernet on the device.

And if it would work, would you recommend buying a better antenna (more dB's) as well or not ?

Thank you

Edit: Never mind.