Design of Filtering Coupler Based on Patch Resonator with High Selectivity

Table 1

Comparisons with other previous works.

Refs.	Size ()	CF (GHz)	3 dB FBW (%)	IL (dB)	Isolation (dB)	Techniques	TZs
[5]		0.47	13.3	1.19	-30		2
[7]		9	0.77	1.9	-33.2	SIW	0
[10]		4.3	16.3	1.3	-28	Patch	2
[11]		11.5	0.4	0.25	-25	Waveguide	1
[12]		1.5	4	3	-30	Stub-loaded resonators	0
Our work		2.12	5.2	1.97	-26	Patch	2