Figure 7
From: A digital SIW-slot antenna array with FPGA implementation of beamforming

(a) Binary coding for bias voltage distributions (‘0101’ state as example). (b) Simulated realized gain of both ‘0000’ and ‘1111’ states. (c) Simulated far field normalized radiation patterns of the tunable designed SIW-slot antenna array in several on/off states of diodes (\(\varphi =90^\circ\)).