I’ve been investigating how to use this device as an external antenna for an Android phone. Ideally I’d like to be able to take advantage of the phone's Micro USB port to connect the device and provide the phone with LTE service without rooting the phone. Is it possible to take advantage of the phone Micro USB port, and if so how? Ive search the web looking for direction and answers, and have failed to find much of anything.
That's not an antenna but an entire radio, modem, and antenna packaged together.
You cannot use this with an android phone unless you make major software modifications to the platform and kernel drivers, of a sort that require not only root but a lot of specialized knowledge and determined, pioneering work. Essentially you need a kernel that supports USB host mode, a linux driver for that dongle that can be built in your android kernel, and then you need to convince the userspace parts of android to use that radio modem instead of the built-in one.
You will also need a custom wiring harness that supplies USB power to the modem, as most android phones cannot supply power to a usb accessory even once the software is changed to put them in usb host mode.