Compact, Slotted, Printed Antennas for Dual-Band Communication in Future Wireless Sensor Networks

Table 4

Comparison of electrical performance between the four dual-band printed IFAs in each frequency band.

	K2		GK2		D-GK2		MK2
Band (GHz)	2-3	5-6	2-3	5-6	2-3	5-6	2-3	5-6
𝑓𝑐 (GHz)	2.530	5.310	2.500	5.410	2.500	5.410	2.450	5.450
BW𝑉 (GHz)	0.231	0.598	0.182	1.000	0.191	1.050	0.182	0.950
FBW𝑉	0.091	0.113	0.073	0.185	0.076	0.193	0.074	0.174
𝑄	7.3	5.9	9.1	3.6	8.7	3.4	9.0	3.8
𝑘𝑎 (rad)	1.60	3.35	1.56	3.38	1.57	3.41	1.50	3.20
𝐺max (dBi)	2.0	4.2	2.0	4.3	2.0	4.4	2.1	4.6
𝑛rad	0.94	0.97	0.94	0.97	0.94	0.97	0.94	0.97
𝑛total	0.87	0.82	0.83	0.86	0.84	0.87	0.83	0.84
FOM (dB)	−3.1	−5.6	−4.1	−3.3	−3.9	−3.1	−3.9	−3.4
𝑄𝑟 (dB)	+8.9	+7.8	+9.9	+5.7	+9.7	+5.4	+9.8	+5.9
𝑄𝑡 (dB)	+9.2	+8.6	+10.4	+6.2	+10.2	+5.9	+10.4	+6.6