Glossary of Terms
MS20xxC UG PN: 10580-00305 Rev. L H-9
SSL : SSL or Short Short Load or Offset Short 1, Offset Short 2, Load
calibration method for waveguide line types uses Shorts with different
offset lengths. It is a calibration (common in waveguide) with simple
and redundant standards, but it is band-limited. It requires
well-defined standards. It has lower accuracy at higher frequencies.
Offset Short 1 is 1/8 wavelength, and Offset Short 2 is 3/8 wavelength.
Calibrations standards with known reflection coefficients are used to
calculate the correction factors. Refer to Calibration. Compare this with
OSL or Open Short Load calibration method for coaxial line types.
SSLT : SSLT or Short Short Line Thru or Offset Short 1, Offset Short 2, Load,
Thru calibration method for waveguide line types uses Shorts with
different offset lengths. It is a calibration (common in waveguide) with
simple and redundant standards, but it is band-limited. It requires
well-defined standards. It has lower accuracy at higher frequencies.
Offset Short 1 is 1/8 wavelength, and Offset Short 2 is 3/8 wavelength.
Calibrations standards with known reflection coefficients are used to
calculate the correction factors. Refer to Calibration. Compare this with
OSLT or Open Short Load Thru calibration method for coaxial line
types.
VSWR : Voltage Standing Wave Ratio (VSWR). VSWR is another method to
measure reflected energy caused by impedance mismatch. It is
expressed as a ratio of X:1. VSWR measures the voltage peaks and
valleys. A ratio of 1:1 would be a perfect match. A typical cable and
antenna system would be around 1.43:1 (VSWR) or 15 dB Return Loss.
Watt : Watt (W) is a unit of measure for power.
:
To Next Page
Loading...
