표 1. | Table 1. 이전 발표된 연구들과의 성능 비교 | Comparison with the previously reported works.

Ref.	[6]	[9]	[10]	This work
Center freq. (GHz)	2.4	3.15	1.5	3.1
Bandwidth (MHz)	25	500	800	100
SIC**	>25*	>22	>20	>25
Tx-Rx iso. (dB)	>37	N.A	>33	>45
Coupler implement	Ideal	Ideal	Ideal	Real
Methodology	Two circulators and RF-FIR filter	RF-FIR filter	RF-FIR filter	RF-FIR filter
Size (mm)	N/A	N/A	44×37	112.7×74.6

Graphically estimated.
SIC(SI canceling): Improving of Tx-Rx isolation.