First Microwave link was designed and Implemented by Marconi which was used to connect the Vatican City with the Castel Gandolfo.
AT&T built a 10-channel
microwave radio relay system
in the US.
Analog RF systems began
giving way to more efficient,
higher-capacity digital systems
The first commercial digital cellular network, the 2G generation, was launched in 1991.
Until 2005 the highest data rate supported by Microwave link over a 56Mhz channel using a 128QAM was 2 x STM-1 or 311 Mbps.
Dual Polarized Microwave Links became common in year 2009 which increased the capacity upto 1Gbps.
In 2016 Eband Microwave links deployment increased providing Capacity upto 10Gbps.
Point-to-Point links supporting more than
100Gbps capacities using D Band, MIMO are expected to be commercially available within the next 5–8 years.