A Compact, Bistatic Antenna System with Very High Interport Isolation for 2.4 GHz In-Band Full Duplex Applications

Table 1

The comparison of interport isolation and dimensions of presented antenna with some of the previously reported dual polarized, full duplex antennas [14, 26–30].

Reference	Center freq. (GHz)	Peak isolation (dB)	Isolation (dB)/B.W. (MHz)	Antenna size ()  λo	SIC topology
[14]a	2.5	70	64/110	(1.10.6)	DFN
[14]b	2.5	75	60/160	(1.00.6)	DFN
[26]	2.5	≥75	40/220	(1.10.7)	Polarization diversity
[27]	2.45	≥50	30/300	(1.20.8)	Analog SIC
[28]	2.45	≥90	40/65	Not applicable	Analog SIC
[29]	2.4	∼50	47/75	(1.5 × 1.4)	DFN
[30]	3.35	≥55	40/250	Not given	Using circulators
This work	2.40	≥105	90/60 and 95/40	(0.90.6)	Polarization diversity + DFN