Circularly Polarized Omnidirectional Antenna with Dipole Core and Diagonally Adjoined Parasitic Braces for ISM Band Applications

Table 1

Parameters of the CP omnidirectional dipole antenna operable at 2.45 GHz.

Parameter	Description	Electrical size	Physical size
	Length of sectional core (single section)	0.22λ	27.0 mm
	Distance between bi-sectional cores	0.02λ	2.0 mm
	Radius of bi-sectional core	0.08λ	10.0 mm
	Width of rectangular plate	0.13λ	16.0 mm
	Height of rectangular plate	0.14λ	17.5 mm
	Adjoining region of two rectangular plates	0.01λ	1.0 mm
	Distance between parasitic braces and core center	0.21λ	26.0 mm
	Angle between two adjacent plates	90.0°