Device Overview

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General Description

The BTN1-0026 is constructed using a custom-made, resonance-free conical inductor to achieve extremely broadband performance. By minimizing the overall inductor size and using proprietary packaging techniques, the BTN1-0026 is a superior option in terms of performance, reliability and ease-of-use when compared to cumbersome user-designed bias tees employing off-the-shelf conical inductors. The extremely low cutoff and resonance free operation makes the BTN1-0026 suitable for biasing amplifiers, lasers, and modulators driven with high frequency data patterns.

Photo of BTN1-0026

Features

  • Broadband: 500 kHz to 26.5 GHz
  • Low Insertion Loss
  • High Power
  • Non-Resonant
  • Compact Size

Applications

  • Test and Measurement Equipment

Functional Block Diagram

Block Diagram

Part Ordering Options

Part Number Description Connectors Green Status Product Lifecycle Export Classification
BTN1-0026 High Power Bias tee Standard

REACH

RoHS

 Released EAR99

Table Of Contents

Revision History

Revision Code Revision Date Comment
B 2020-05-01 RoHS Compliant Assembly

Rev: B | Copyright © 2020 Marki Microwave Inc.

29438

Port Configuration and Functions

Port Functions

Port Function Connector Type Description Equivalent Circuit
for Package
Common RF+DC SMAM This port is DC blocked to the RF port and DC connected to the DC port trough an internal RF choke. Equivalent circuit for the RF+DC undefined
DC DC - This port is internally connected to an RF choke which is DC connected to the RF+DC port and DC blocked to the RF port. Equivalent circuit for the DC undefined
RF RF SMAF This port is internally DC blocked to the RF+DC and DC ports. Equivalent circuit for the RF undefined

Rev: B | Copyright © 2020 Marki Microwave Inc.

29439

Specifications

Absolute Maximum Ratings

Parameter Maximum Rating Unit
DC Current 1 A
DC Voltage 50 V
Maximum Storage Temperature 125 °C
Minimum Storage Temperature -65 °C
RF Power Handling 10 W

Package Information

Parameter Details Rating
Weight - 10g
Dimensions - 11.94 x 11.94 mm

Rev: B | Copyright © 2020 Marki Microwave Inc.

29440

Electrical Specifications

Specifications guaranteed from -55 to +100°C, measured in a 50Ω system.

Parameter Test Conditions Minimum
Frequency
(GHz)		 Maximum
Frequency
(GHz)		 Min Typ Max Unit
Capacitance - - - - 100 - nF
DC Port Isolation - 0.0005 1 - 50 - dB
DC Port Isolation - 1 26.5 - 30 - dB
DC Resistance - - - - 0.5 - Ω
Inductance - - - - 22 - μH
Insertion Loss - 0.004 26.5 - 1 2 dB
Insertion Loss - 0.0005 0.004 - 2 - dB
Return Loss - 0.0005 26.5 - 14 - dB
Risetime/Falltime 1 - - - - 10 - ps

[1] Specified as 90%/10%. Calculated from 𝜏bt2 = (𝜏out2 - 𝜏in2)

Rev: B | Copyright © 2020 Marki Microwave Inc.

29441

Typical Performance Plots

Band 3 Insertion Loss (dB) graph for BTN1-0026
Return Loss graph for BTN1-0026
Low frequency RF response graph for BTN1-0026
Low frequency isolation graph for BTN1-0026
DC-RF isolation graph for BTN1-0026
Near DC isolation graph for BTN1-0026
Group Delay graph for BTN1-0026
Performance over temperature graph for BTN1-0026

Rev: B | Copyright © 2020 Marki Microwave Inc.

29442

Typical Performance vs Bias Current at Low Frequencies

Insertion Loss vs Bias Current graph for BTN1-0026
Common Return Loss vs Bias Current graph for BTN1-0026
RF Return Loss vs Bias Current graph for BTN1-0026

Time Domain Performance Plot

Oscilloscope measurements of the BTN1-0026 with a 10Gb/s PRBS pattern. Eye diagrams are taken with a 231-1 PRBS input demonstrating minimal eye distortion/closure afforded by the extremely low frequency operation of the bias tee.

Oscilloscope measurements of the BTN1-0026 with a 10Gb/s PRBS pattern graph for BTN1-0026

Rev: B | Copyright © 2020 Marki Microwave Inc.

29443

Mechanical Data

Outline Drawing

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Outline Drawing

Rev: B | Copyright © 2020 Marki Microwave Inc.

29444