Microwaves have a higher frequency than radio waves. The frequency range for microwaves is approximately \( 3 \times 10^9 \) Hz to \( 3 \times 10^{12} \) Hz, while the frequency of radio waves ranges from about \( 30 \, \text{Hz} \) to \( 3 \times 10^9 \, \text{Hz} \).