표 1. | Table 1. 선행연구와의 비교표 | Comparison table with previous studies.

Ref.	[4]	[5]	[6]	This work
Freq. (GHz)	8.0~11	8.0~11	8.5~10.5	27.5~31
Phase range/step(°)	360/11.25	360/11.25	360/11.25	360/2.8
Att. range/step (dB)	31/1	31/1	31/1	31.75/0.25
Gain (dB)	17	30	3.5	25
RMS Amp. Err. (dB)	2	1.5	1.5	0.4
RMS Pha. Err. (°)	6	6	4.3	4.5
Chip Area (mm2)	15.5	8.4	4.9	12.6