Figure 2
From: A digital SIW-slot antenna array with FPGA implementation of beamforming
(a) The general view of a SIW-based slot antenna without on/off characteristics. Some optimized key parameters (length in mm) are: \(w_{slot}=0.5\), \(l_{slot}=18.4\), \(d_x=0.5\), P = 30. (b) SIW-based slot array with ideal on/off characteristics.
