What is the frequency range referred to as Microwave Frequencies?

Microwave frequencies are generally defined within the frequency range of 1 GHz to 300 GHz. This frequency range is significant in various applications, including telecommunications, radar, and microwave heating.

At the lower end, 1 GHz is the starting point of the microwave range, where waves can be effectively used for communication and imaging systems. As frequencies increase, they offer improved resolution and bandwidth for data transmission, utilized in various technologies such as Wi-Fi, satellite communication, and even in medical imaging techniques like MRI.

The upper limit of this range, 300 GHz, defines the transition point where microwaves start to blend into the millimeter wave region, which is used for higher frequency applications, including advanced broadband and automotive radars.

The other options listed fall outside of this recognized frequency range of microwaves, making them incorrect in identifying what constitutes microwave frequencies.