표 2. | Table 2. 1단 및 2단 반사 위상 천이기 성능 비교 | Performance comparison of 1-stage and 2-stage reflection-type phase shifters.

	Circuit size (λg×λg)	IL (dB)	Phase shifting range	Number of varactor diodes	Required maximum DC control voltage resolution
Ref. [12]	n/a	4.4±0.2	0~407°	4	n/a
Ref. [13]	0.35×0.65	1.4±0.9	0~220°	2	n/a
Ref. [14]	n/a	1.3±0.3	0~147°	2	n/a
One-stage phase shifter	0.2×0.52	2.8±1.5	0~370°	4	10 mV/deg
Two-stage phase shifter	0.26×0.39	2±0.5	0~370°	4	10 mV/deg