Wideband Dual-Polarized Differential-Fed Filtering Microstrip Patch Antenna with High Suppression and Wide Stopband

Figure 12

Photographs of the proposed filtering antenna: (a) 3D view (front), (b) 3D view (back), and (c) bottom view of the top substrate, (d) top view and (e) bottom view of the bottom substrate, and (f) digital phase shifter.

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