Simple Integration of Cavity-Backed Antenna with Patch Antenna for Developing Hybrid Antenna Using SIW Technology

Table 2

A comparison of both simulated and experimental data.

Parameters	Hybrid antenna
	Simulated (13.12 GHz)	Measured (13.1 GHz)
S11	-27.0 dB	-35.0 dB
BW	410 MHz	450 MHz
VSWR	1.02	N/A
Gain (dBi)	-3.09 (), 6.06 ()	6.45 (), 6.24 ()
SLL (dB)	-5.9 () -2.1 ()	-7.93 (), -2.56 ()
XPL (dB)	-2.06 (), -5.11 ()	-1.56 (), -4.07 ()
Beam directions	359° (), 44° ()	358° (), 309° ()
HPBW	143.3° (), 47.28° ()	70.83° (), 46.07° ()
FTBR	12.59 dB	23.2 dB
-field	15.2 dBV/m	N/A
-field	-36.4 dBA/m	N/A
Radiated power	0.4163 W	N/A
Copper loss	0.01797 W	N/A
Dielectric loss	0.05220 W	N/A
-factor	32	29.11
	33.79	31.8
Rad. efficiency	94.68%	91.30
Total efficiency	92.36%	N/A