412 
Fig. 1: Bandwidth for a 4 look image and a 
unweighted resolution of 10 x 10 m. 
Fig. 2: Minimum antenna area for an altitude of 
440 km and a radar frequency of 9.6 GHz. This 
antenna size is required to ensure a good 
ambiguity suppression. 
Fig. 3: The antenna gain corresponds to the Fig. 4: The elevation beamwidth corresponds to 
antenna area of Figure 2. the antenna gain of Fig. 3. The azimuth beamwidth 
remains constant over the incidence angle range. 
Fig. 5: The achievable swath width by changing 
the antenna beam width according to Fig. 4.