Figure 12
From: Low-profile dual-band pixelated defected ground antenna for multistandard IoT devices
(a) Evolution of the antenna; Antenna 1-with full ground and patch, Antenna 2-with shorting via, Antenna 3-with rectangular slotted ground, Antenna 4-with pixelated defected ground, Software used: CST Microwave Studio 2019 (b) Simulated reflection coefficient of the antenna with VBPSO vs. BPSO.
