Compact Wideband Circularly Polarized Antenna with Symmetric Parasitic Rectangular Patches for Ka-Band Applications

Table 2

Comparison of CP Antennas at mmWave.

ANT type	Size ()	IMBW (%)	3-dB ARBW (%)
Aperture [16]	1.58  1.58  0.16	18	16.3
Aperture [17]	2  1.82  0.16	>17.9	16.3
Aperture and patch [18]	1.14  1.32  0.105	12	10
Waveguide [19]	3.57  2.07  0.90	1.3	1.1
Patch [20]	1.12  0.86   (>0.12)	10.9	>11.57
Proposed ANT	0.27  0.31  0.047	35.97	15.19