SHF Communication Technologies AG
Wilhelm-von-Siemens-Str. 23D • 12277 Berlin • Germany
Phone +49 30 772 051-0 • Fax +49 30 753 10 78
E-Mail: sales@shf-communication.com • Web: www.shf-communication.com

Datasheet
SHF BT45R
45 GHz Broadband Bias-Tee

SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Description
The SHF BT45R bias tee is the RoHS compliant successor of the SHF BT45. It outputs the superposition ofthe signals applied to the AC and to the DC port. Any existing DC content is blocked from its AC input while1
the DC input is practically only allowing transmission of pure DC .
Based on SHF’s air line construction, it offers resonance-free transmission up to 45 GHz. In addition to thelow insertion loss, all products have an extremely low group delay ripple.

Applications


Optical Communications

High-Speed Pulse ExperimentsSatellite Communications



Research and Development

Antenna MeasurementsData Transmission

Configurations
A- AC port: 2.92 mm male, AC+DC port: 2.92 mm female

B- AC port: 2.92 mm female, AC+DC port: 2.92 mm male

C- AC port: 2.92 mm male, AC+DC port: 2.92 mm male

D- AC port: 2.92 mm female, AC+DC port: 2.92 mm femaleOne of above configurations has to be chosen. For more information, please be referred to the mechanicaldrawing on the last page of this data sheet. The DC-port is always SMA female.

Options

HV100- High Voltage (maximum DC voltage extended to 100 V)

HV200- High Voltage (maximum DC voltage extended to 200 V)

HC1000- High Current (maximum DC current extended to 1 A)

HC2000- High Current (maximum DC current extended to 2 A)

HVC100/1000 - High Voltage & Current (maximum DC voltage extended to 100 V and maximumDC current extended to 1 A)

1

In case a low- and a high frequency signal should be combined a SHF Diplexer (essentially a bias tee with a certain bandwidth in thelow frequency path) would be the right choice.
SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Specifications - SHF BT45R
Parameter

Unit Symbol

MinTypMaxConditions

Absolute Maximum Ratings for SHF BT45R without Option
Maximum RF Input

dBmMaximum DC Voltage

VMaximum DC Current

mA

Case Temperature

Tcase

30

average power of a continuous 2signal, 50 Ω load and f ≥ 2 x fLow

-16

16

difference between ports and between
ports to ground

-400

400

Pin max°C

102550Electrical Characteristics SHF BT45R without Option (At 25°C case temperature)
High Frequency 3 dB Point

GHzfHIGH

Low Frequency 3 dB Point

kHzfLOW

20with 16 VDC applied

Insertion loss

dB

S211.5< 40 GHz>40 MHz <15 GHz

S11 ; S22-17-14-10±50

1 GHz … 40 GHz, 160 MHz aperture

Input ReflectiondB

Group Delay Ripple

45psIsolationdB<20 GHz<45 GHz

1 MHz … 30 GHz

30

Ω

3.5

DC to AC+DC portConnector

Ω502.92mm (K)Dimensions

mmWeightg

DC ResistanceMechanical Characteristics

please see page 5

25

In case an option is chosen the following variations to above specifications apply:
Parameter

Unit

Nooption

HV
100

HV200

HC1000

HC
2000

HVC
100/1000

Maximum DC Voltage

V-16…+16-100…+100-200…+200-16…+16-16…+16-100…+100

Maximum DC Current

A-0.4…+0.4-0.4…+0.4-0.4…+0.4-1… +1-2… +2-1… +1

Max. Low Frequency
33 dB Point

MHz

0.02

0.8

40.1

0.5

0.8

Typical DC Resistance

Ω

3.5

3.5

3.5

10.3

1230 dBm (1 W) equals 20 V peak to peak for continuous sinusoidal signals. A pulsed excitation with an average of 1 W and thus
having significantly higher peaks is possible. The maximum RF input power does not change in case a signal is applied to the DC port.
3

measured with maximum DC voltage applied
SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Typical S-Parameters for a BT45R without Option

Aperture of group delay measurement: 160 MHz
S21 phase measurement has been compensated by propagation delay to visualize phase linearity.
SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Typical Low Frequency Response of AC Path
Measurement without applied DC voltage.
W/o option: blue ; Option HC1000: red ; Option HC2000: green
Option HV100 and HVC100/1000: black ; Option HV200: gray

Typical Low Frequency Response of DC Path
Measurement without applied DC voltage.
W/o option: blue ; Option HC1000: red ; Option HC2000: green
Option HV100 and HVC100/1000: black ; Option HV200: grayNote: The isolation DC/AC is better at low frequencys by the effect of the coupling capacitor in this path.
SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Typical Waveforms
Input Eye Amplitude ~400 mV
Measurements had been performed using a SHF 613 A DAC and an Agilent 86100C DCA withPrecision Time Base Module (86107A) and 70 GHz Sampling Head (86118A).
Rise and fall time are measured from 20 to 80 percent.

Input Signal @ 28 Gbps

Output Signal @ 28 Gbps

Input Signal @ 56 Gbps

Output Signal @ 56 Gbps

Input Signal @ 56 GBaud

Output Signal @ 56 GBaud

SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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Mechanical Drawing
Ø2.2 x 11mm

Functional earth holes for 2mm banana plug2.522.
Ø

2.5valid for all options
2.512.7AC

9.8
6.340(2x)mm12.612.7

AC + DC

22DC136.340(2x)mm

1M2xAC

33

9.6

6.5

1316V/0,4A

SN XXXX 20 kHz - 45 GHz

9.8

5.4

SHF BT45R-B

12.6

12.7

AC22DC

6.340(2x)

mm

1M2x

AC + DC

1333

12.7

6.5

1316V/0,4A

SN XXXX 20 kHz - 45 GHz

9.8

5.4

SHF BT45R-C

12.6

9.6

AC

22DC

136.3

1340

6.3
12.6

M2x3

AC + DC(2x)9,66.51316V/0,4A

SN XXXX 20 kHz - 45 GHz

9.85.4SHF BT45R-Dmm

6.3

3M2xAC + DC

1313

9.6

6.5

1316V/0,4A

SN XXXX 20 kHz - 45 GHz

6.3

DC

5.4

SHF BT45R-A

6.3

22

All dimensions in mm

SHF reserves the right to change specifications and design without notice - SHF BT45R - V003 - Nov. 11, 2020

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