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Description

An RF/microwave bias tee is a device that combines (or separates) a DC signal with an RF signal, generally for biasing amplifiers or other active microwave devices. Our bias tees offer low insertion loss and high return loss to from kHz to Ka band frequencies. They are available in connectorized, surface mount, and RoHS surface mount versions. The surface mount bias tees come in an extremely compact .150” x .240” package. Marki offers two basic designs for surface mount bias tees. The design used in the BT-0010SMG and BT-0030SMG includes a bypass capacitor on the DC input line, making it immune to external disturbances on the bias line, but it also cannot be improved with additional external components. The performance of the BT-0010SMG and BT-0030SMG does not change with the current load on the DC bias line. The design used in the BT-0014SMG, BT-0024SMG, and BT-0034SMG does not include an internal bypass capacitor on the DC blocking line. The low frequency on these bias tees is lower (500 kHz instead of 10 MHz), but is dependent on the bias conditions. It can be extended lower and made more insensitive to current with an external coil (down to 4 kHz). An external bypass capacitor can also be added to make it more immune to bias line disturbances.

Specifications

Electrical Specifications - Specifications guaranteed from -55 to +100°C, measured in a 50-Ohm system
Parameter Frequency Range Min Typ Max
Insertion Loss (dB) 5 MHz to 24 GHz   1 2.0
  500 kHz to 5 MHz   1 6
DC Current (mA)    

500 kHz to 24 GHz

     500
DC Resistance (Ohms)   <1.5
DC Port Isolation (dB)   40  
DC Voltage Maximum (V)     30
RF Power Maximum (W)     1

Packages

Download our 3D models here.
BT-0024SMG Bias Tee Package Diagram
BT-0024SMG Bias-Tee - Surface Mount, Lead-Free / RoHS Compliant

Model

Stock

Price


Volume Pricing

ModelPort Configuration
BT-0024SMG-1-1
BT-0024SMG-2-2

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