The arhcitecture of the generator network is as shown in the figure.
The skeleton code is take from github.com/brade31919/SRGAN-tensorflow which is the implementation of https://arxiv.org/pdf/1609.04802.pdf I have designed my own generator architecture. For the reference,one can go through the paper
References: github.com/brade31919/SRGAN-tensorflow (for skeleton code) https://arxiv.org/pdf/1609.04802.pdf for theory