표 7. | Table 7. 20 GHz~100 GHz 삽입손실 측정의 불확도 총괄표 | Uncertainty budget of insertion loss 20 GHz to 100 GHz.

Uncertainty sources		Value	Distribution	Division factor	ui
		dB			dB
A type		0.007	Normal	1	0.007
Instrument	Network analyzer S21 accuracy	0.089	Rectangular	3	0.051
	Network analyzer power level linearity	0.090	Normal	2	0.045
	Network analyzer frequency accuracy	0.000	Rectangular	3	0.000
	Dynamic accuracy	0.100	Rectangular	3	0.058
Cable	Tx cable amplitude stability	0.150	Rectangular	3	0.087
	Rx cable amplitude stability	0.150	Rectangular	3	0.087
Mismatch	Network analyzer - Tx cable	0.023	Rectangular	2	0.016
	Tx cable - Tx Ant	0.076	U Type	2	0.054
	Network analyzer – Tx Ant	0.002	U Type	2	0.001
	Rx ant - Rx cable	0.045	U Type	2	0.032
	Rx cable - Network analyzer	0.087	U Type	2	0.062
	Rx Ant – Network analyzer	0.003	U Type	2	0.002
Antenna arrangement	Antenna position (up and down)	0.135	Rectangular	3	0.078
	Antenna position (left and right)	0.335	Rectangular	3	0.193
	Antenna position (array)	0.065	Rectangular	3	0.038
	Effects of phase position	0.382	Rectangular	3	0.221
Effects of site	Reflect wave effect from wall, floor and ceiling	0.080	Rectangular	3	0.046
Fitting error	Reactive range (more than about 50 % distance from source)	0.25	Rectangular	3	0.144
	Fresnel range	0.48	Rectangular	3	0.277
	Far field range	0.42	Rectangular	3	0.242
Combined standard uncertainty (reactive range), uc					0.384
Combined standard uncertainty (fresnel range), uc					0.451
Combined standard uncertainty (far field range), uc					0.430
Expanded standard uncertainty (The worst value), U (k=2)					0.902