Powering ground station

The RPi and the antenna must be powered continuously at 5V 3A.
I would like to print a case and I need to do make some power supply.
Will this configuration be ok?

What is USB to 7.2v doing? Is that a boost converter?

Looks ok to me otherwise, but be aware that connecting a phone to a raspberry pi with a usb cable can cause the phone to try to charge itself, which can cause problems.

USB-ethernet adapters are a common workaround and generally work on most android devices. There is an adapter for iPhones/iPads as well but it isn’t as cheap.

Yes, it’s a booster, something like that:

So I assume that I shouldn’t charge phone via RPi and use ethernet to usb cable instead (for communication)?