A Comparative Study of Compact Multiband Bio-Inspired Asymmetric Microstrip Fed Antennas (BioAs-MPAs) for Wireless Applications

Table 4

Comparative analysis of the Bio-ACS antenna with recent works in the literature.

Ref	Size	Substrate	Freq (GHz)	S11 (dB)	Impedance bandwidth (MHz)	Gain	Eff (%)
[1]	0.08 × 0.70 (3.05 × 5.29)	FR4	2.4/5.2	−25/−37	NR	3.6/2.8 (dBi)	48/72
[21]	0.49 × 0.35	FR4	2.4/3.5/5.2	−40/−22/−13	120/340/1450	0.6/1.8/3.7 (dBi)	NR
[2]	0.38 × 0.42	FR4	2.48/3.49	−13.2/−32.67	340/390	2.4/3.5 (dB)	NR
[3]	0.50 × 0.52	FR4	2.4/3.5	−21/−14	200/390	2.25/0.88 (dBi)	76/85
[4]	0.49 × 0.91	Polyester	1.8/2.4/3.5/5.2	−33.7/−22.3/−23.6/−25.6	320/120/480/570	3.3/3.24/1.86/2.01 (dBi)	91.92/82.16/80.89/80.20
[5]	0.49 × 0.38	FR4	2.49/4.2/7.4	−17.09/−27.42/−20.56	300/1000/800	2.92/4.13/5.85 (dB)	76.96/67.92/85.61
[22]	0.86 × 0.86	FR4	2.45/3.42/5.13	−21/−21/−30	200/600/2330	3.29/3.37/4.16 (dB)	NR
This work
CP-A	0.39 × 0.18	Rogers 5880	2.4/4.4	−45.40/−26.51	120/110	2.17/1.73 (dB)	97.4/93.0
MD-A	0.42 × 0.19	Rogers 5880	2.6/4.4/5.5	−20.26/−33.05/−19.28	130/60/420	2.25/1.46/4.67 (dB)	97.5/86.6/98.3
V-A	0.41 × 0.19	Rogers 5880	2.5/5.4	−32.71/−10.02	120/60	2.23/3.48 (dB)	97.2/99.9

NR: not reported, CP-A: Carica papaya antenna, MD-A: Monstera deliciosa antenna, V-A: Vine-leaf Antenna. The supported ground plane dimension; which may not be supported in wireless sensor network and airborne applications.