Circularly Polarized Wearable Antenna Based on NinjaFlex-Embedded Conductive Fabric

Table 1

Simulated and measured efficiency, peak gain, and directivity in all situations.

	Efficiency: s/m	Peak gain: s/m (dBi)	Directivity: s/m (dBi)
Flat	25.9%/25.8%	0.97/0.96	6.83/6.84
Bending 25 mm along x-axis	27.6%/27.5%	0.63/0.60	6.22/6.21
Bending 50 mm along x-axis	30.9%/30.7%	1.82/1.80	6.93/6.93
Bending 25 mm along y-axis	29.2%/29.1%	1.13/1.11	6.48/6.47
Bending 50 mm along y-axis	29.9%/29.8%	1.43/1.42	6.64/6.68