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K252/V252 Kelvin Bias Tee

Kelvin Bias Tee K252/V252/W252MF/W252FM

K252/V252
Bias Tee is designed for applications where both DC and RF signals are applied to the Device under Test (DUT) and precision DC measurements are required
Overview

Kelvin Connection Bias Tee is designed for applications where both DC and RF signals are applied to the Device under Test (DUT) and precision DC measurements are required.  A high resistance of the DC coil results in a voltage drop that leads to a DC Biasing voltage error in the measurements.  A Kelvin connection bias tee is used to eliminate DC Biasing errors as the sense coil allows accurate measurement of the DC Voltage applied across the DUT.  All Kelvin bias tee models are available with precision connectors. A male connector for the RF input and a female connector for the output is the standard interface for K252 and V252 bias tees. For 110 GHz bias tees, there are two options for the RF input and output. W252MF assigns a W1(m) RF input and a W1(f) output. For the W252FM, the RF input is W1(f) and the output is W1(m). A SMC connector is standard for DC Bias and Sense connections. For K and V Kelvin bias tees, RF in and output gender configurations can be ordered through the factory.

  • Broadband performance up to 110 GHz frequency coverage
  • 50 V and 500 mA current capability
  • Low Insertion and SWR performance
Specifications

 Model

K252 

V252

 Frequency Range 3dB BW

 100 MHz to 40 GHz

100 MHz to 65 GHz 

 Insertion Loss

 <2.5 dB typical

 <3.7 dB typical 

 Return Loss

11 dB 

10 dB to 60 GHz
8 dB to 65 GHz 

 Max DC Current

500 mA 

500mA 

 Max DC Voltage

50VDC 

50VDC 

 Max RF Power

1 W 

1 W 

 Connector

 RF In: K(m)
RF Out: K(f)
Bias: SMC(m)
Sense: SMC(m)

RF In: V(m)
RF Out: V(f)
Bias: SMC(m)
Sense: SMC(m) 

 Inductance

Bias: 6  µH
Sense: 8 µH

Bias: 6  µH
Sense: 8 µH 

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