Design of Rhombus-Shaped Slot Patch Antenna for Wireless Communications

Table 2

Performance comparison of the proposed model with the traditional antenna model.

Parameter	Ref. [12]	Ref. [13]	Ref. [14]	Ref. [15]	Proposed model
Reflection coefficient (dB)	−21 dB	−13 dB	−20 dB	−25 dB	−20.6 dB
Maximum gain (dB)	4.5 dB	5.3 dBic	6.8 dBic	6.1 dBic	5.16 dBic (LHCP); 4.82 dBic (RHCP)
3 dB axial ratio bandwidth (dB)	55 MHz	40 MHz	100 MHz	40 MHz	140 MHz
3 dB axial ratio beamwidth (dB)	176°	140°	100°	180°	95°
Cross-polarization isolation (dB)	NA	NA	NA	NA	−17 dB