Figure 1
From: A digital SIW-slot antenna array with FPGA implementation of beamforming
(a) Three views of the SIW structure. Some key parameters (length in mm) are: \(h_1=0.762\), \(h_2=0.762\), \(w_1=17.6\), \(w_2=1.7\), \(w_3=4.4\), \(l_1=2\), \(l_2=7\), s = 1, d = 0.3. (b) Scattering parameters of the SIW structure.
