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K-Band FMCW Dopplerradar

 

Fig. 1: The K-band Doppler Radar FCMW


Specifications of K-Band FCMW Dopplerradar
frequency : 24.230 GHz
wavelength : 1.24 cm
mode : FM-CW (sawtooth with downsweep)
Duration of a sawtooth: 0.514 ms
sawtooth frequency : 1953 Hz
Continuously radiated power : 50 mW
Diameter of the parabola : 60 cm
Beamwidth (-3-dB single-border) : 1.5 Grad
near-field distance : ∼ 20 m
Sidelobes : <-20 dB
sampling frequency of the A / D converter : 31.25 kHz
Discrete data points per FFT : 1024
Frequency sweeps per FFT (N) : 64
Period of an FFT : 33 ms
Nyquist frequency : 15.625 kHz
Discrete frequencies of the power spectrum : 512
Frequency resolution: : 30.25 Hz
Speed ​​resolution : 0.19 m/s
Number of height steps : 32 (of which 30 are usable)
Speed ​​channels per level: 64
Altitude resolution: 10-200 m (adjustable)
Number of spectra in a 10-s average 138
Averaging time for the output : 10-3600 s (adjustable)
For Manufacturer : Fa. Metek, Elmshorn