Microwave Band, Frequency, and Wavelength Ranges
Microwave frequency

Note- The frequency and the Wavelength range are specified by the IEEE.

1. L–Band

Operating Frequency Range of L Band- 1-2 GHz

Wavelength Range of L-band- 30–15 cm

Application- Radars, Global positioning systems (GPS), Radio, Telecommunications, and Aircraft surveillance.

2. S-Band

Operating Frequency Range of S-band - 2-4 GHz

Wavelength Range of S-Band - 15 –7.5 cm

Application-  ATC(Automatic traffic Control for radar and Antenna system).

3. C–Band

Operating Frequency Range of C-Band- 4-8 GHz

Wavelength Range of C-Band- 7.5 – 3.75 cm

Application- Wi-Fi, Sattelite Communication
In satellite Communication There are Two frequency Uplink and Downlink frequency

Uplink frequency- 6 GHz

Downlink Frequency 4GHz.

4. X–Band

Operating Frequency Range of X-Band - 8-12 GHz

Wavelength Range of X- Band- ‎3.75 – 2.5 cm

Application- Radar, Military Purpose.

5. Ku–Band

Operating Frequency Range of Ku-Band - 12-18 GHz

Wavelength Range of Ku- Band- 2.5–1.67 cm

Application- DTH(Direct To Home Service)

Uplink frequency- 14 GHz

Downlink Frequency- 12 GHz.

6. K–Band

Operating Frequency Range of K-Band - 18-27 GHz

Wavelength Range of k-band- 1.67 – 1.11cm

Application- K band (infrared) an atmospheric transmission window centered on 2.2 μm.

7. Ka-Band

Operating Frequency Range of Ka-Band - 27-40 GHz

Wavelength Range of Ka-Band- 1.11 cm – 7.5 mm

Application- Military airplanes, Vehicle Speed Detection.

Note- In the case of Sattelite communication Uplink Frequency is always greater than Downlink frequency. While in the case of Mobile communication Uplink frequency is less than downlink frequency.

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