A precision fixed termination (or load) consists of an immovable, (fixed) termination which, when mated to the end of a trans-mission line or cable, absorbs nearly all of the signal energy traveling toward it. An ideal “matched” condition exists when a termination with an impedance value of Z0, is connected to the end of a transmission line or cable that also has a characteristic impedance of Z0. Such an ideal “matched” condition (one with no mismatch between the termination and its mated line or cable) is critical if a voltage standing wave ratio (VSWR) of 1.0:1 is to be achieved in a system with a 50 or 75 ohm impedance value. Simply put, the more closely the 1.0:1 ratio is approached, the more accurate the measurements that can be made from a system.
Features and Benefits
- Calibration-grade metrology standards
- Used for VNA calibration and/or calibration validation
Key Specifications
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FREQUENCY RANGE (COAXIAL)DC to 67 GHz
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FREQUENCY RANGE (WAVEGUIDE)2.6 to 50 GHz
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VSWR1.02:1 to 1.2:1
Models Table
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NameDescriptionFrequency Range (GHz)VSWR (max)Connector 1Gender 1
332E – DC-18 DC-4 GHz, 1.06,
4-12 GHz, 1.1,
12-18 GHz, 1.15TNC Female 332F – DC-18 DC-4 GHz, 1.06,
4-12 GHz, 1.1,
12-18 GHz, 1.15TNC Male 351A2 – DC-10 DC-2 GHz, 1.04,
2-4 GHz, 1.1,
4-10 GHz, 1.2BNC Female 351B2 – DC-10 DC-2 GHz, 1.04,
2-4 GHz, 1.1,
4-10 GHz, 1.2BNC Male 2510F2 – DC-18 DC-2 GHz, 1.025,
2-4 GHz, 1.04,
4-18 GHz, 1.065Type N Male 2610F1 – DC-18 DC-2 GHz, 1.02,
2-8 GHz, 1.03,
8-18 GHz, 1.067mm – 7831A1 – DC-67 DC-1 GHz, 1.02,
1-10 GHz, 1.07,
10-26.5 GHz, 1.1,
26.5-67GHz , 1.21.85mm Female 7831B1 – DC-67 DC-1 GHz, 1.02,
1-10 GHz, 1.07,
10-26.5 GHz, 1.1,
26.5-67GHz , 1.21.85mm Male 7931A2 – DC-50 DC-4 GHz, 1.02,
4-50 GHz, 1.162.4mm Female 8031A6 – DC-26.5 DC-2 GHz, 1.025,
2-18 GHz, 1.045,
18-26.5 GHz, 1.0853.5mm Female 8031B6 – DC-26.5 DC-2 GHz, 1.025,
2-18 GHz, 1.045,
18-26.5 GHz, 1.0853.5mm Male 8583A1 – DC-12 DC-2 GHz, 1.02,
2-4 GHz, 1.04,
4-12 GHz, 1.1BNC 75Ω Female 8583B1 – DC-12 DC-2 GHz, 1.02,
2-4 GHz, 1.04,
4-12 GHz, 1.1BNC 75Ω Male 8684A – 2-20 DC-4 GHz, 1.04,
4-12 GHz, 1.08,
12-20 GHz, 1.1AFTNC Female 8684B – DC-20 DC-4 GHz, 1.04,
4-12 GHz, 1.08,
12-20 GHz, 1.1AFTNC Male 8775A4 – DC-40 DC-4 GHz, 1.02,
4-40 GHz, 1.122.92mm Female 8775B4 – DC-40 DC-4 GHz, 1.02,
4-40 GHz, 1.122.92mm Male 8883A1 – DC-18 1.1 Type N 75Ω Female 2510E2 – DC-18 DC-2 GHz, 1.025,
2-4 GHz, 1.04,
4-18 GHz, 1.065Type N Female C301 – 5.85-8.2 1.02 WR137 – G301 – 3.95-5.85 1.02 WR187 – K301 – 18-26.5 1.025 WR42 – N301 – 15-22 1.025 WR51 – U301 – 26.5-40 1.025 WR28 – F301C – 4.9-7.05 1.02 WR159 – H301A – 7.05-10 1.015 WR112 – E301F – 3.3-4.9 1.02 WR229 – J301A – 33-50 1.04 WR22 – M301A – 10-15 1.02 WR75 – P301A – 12.4-18 1.02 WR62 – Q301A – 22-33 1.025 WR34 – S301A – 2.6-3.95 1.025 WR284 – X301A – 8.2-12.4 1.15 WR90 –