SAR Antenna Pattern Measurement by Internal Calibration Method for GF-3 Satellite

Figure 7

Elevation pattern comparison of the internal calibration method (ICM) to the near-field method (NFM). (a) Boresight beam. (b) Beam scanning and broadening 1.8 times. (c) Beam scanning and broadening 3.4 times. The inserts are the zoomed plots of the main lobe.

(a)

(b)

(c)