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 BT65R
65 GHz Broadband Bias-Tee

SHF reserves the right to change specifications and design without notice - SHF BT65R - V005 - April 20, 2020

Page 1/8

Description
The SHF BT65R bias tee is the RoHS compliant successor of the SHF BT65. 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 65 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: 1.85 mm male, AC+DC port: 1.85 mm female

B- AC port: 1.85 mm female, AC+DC port: 1.85 mm male

C- AC port: 1.85 mm male, AC+DC port: 1.85 mm male

D- AC port: 1.85 mm female, AC+DC port: 1.85 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)

HC800- High Current (maximum DC current extended to 800 mA)

HVC100/800- High Voltage & Current (maximum DC voltage extended to 100 V and maximum
DC current extended to 800 mA)

EM- Extended Measurement (inspection report up to 110 GHz)

1In 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 BT65R - V005 - April 20, 2020

Page 2/8

Specifications - SHF BT65R
Parameter

Unit

SymbolMin

TypMax

Conditions

Absolute Maximum Ratings for SHF BT65R without Option
Maximum RF InputdBmMaximum 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 BT65R without Option (At 25°C case temperature)
High Frequency 3 dB Point

GHzfHIGH

kHz

fLOW

Insertion lossdB

Reflection

dBLow Frequency 3 dB Point

Group Delay Ripple

65
20402550

with 1 VDC applied

S211.5< 65 GHz-17-14-9>40 MHz <10 GHzS11 ; S22±50

40 MHz … 50 GHz, 160 MHz aperture

psIsolation

dBwith 16 VDC applied<30 GHz<65 GHz

1 MHz … 40 GHz

30

Ω

3.5

DC to AC+DC portConnectorΩ50

1.85mm (V)DimensionsmmDC ResistanceMechanical Characteristics

please see page 8

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

HV
100

HC800

HVC
100/800

Maximum DC Voltage

V-16…+16-100…+100-16…+16-100…+100

Maximum DC Current

A-0.4…+0.4-0.4…+0.4-0.8…+0.8-0.8… +0.8

Max. Low Frequency3 dB Point

MHz0.05

30.1

3

Typical DC Resistance

Ω3.5

3.5

11Parameter

230 dBm (1 W) equals 20 V peak to peak for continuous sinusoidal signals.
SHF reserves the right to change specifications and design without notice - SHF BT65R - V005 - April 20, 2020

Page 3/8

Typical S-Parameters for a BT65R 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 BT65R - V005 - April 20, 2020

Page 4/8

dB(S21)

-2-3

THRU
incl. 1mm-V-adaptors-4
TypicalS-Parameters
for a BT65R with Option EM
DUT + 1mm-V-adaptors
When selecting the option EM the performance of the bias tee is measured up to 110GHz. The spikes at-5~67 GHz and ~75 GHz are due to moding of the V connectors.
0.05

10.05

20.05

30.05

40.05

Insertion loss

50.05

60.05

70.05

80.05

90.05

100.05110.05f [GHz]00-1-10dB(S11)dB(S21)-2-20-3-30

THRU incl. 1mm-V-adaptors-4

DUT + 1mm-V-adaptors-40-5-50

DUT + 1mm-V-adaptors
0.05

10.05

20.05

30.05

40.05

50.05

60.05

70.05

80.05

90.05

100.05110.05

0.05

10.05

20.05

30.05

40.05

50.05
60.05
f [GHz]

70.05

80.05

90.05

100.05110.05f [GHz]Return loss
00-10-10dB(S22)dB(S11)-20-20-30-30-40

DUT + 1mm-V-adaptors-40-50-50

DUT + 1mm-V-adaptors
0.05

10.05

20.05

30.05

40.05

50.05

60.05

70.05

80.05

90.05

100.05110.05

0.05

10.05

20.05

30.05

40.05

50.05
60.05
f [GHz]

70.05

80.05

90.05

100.05110.05f [GHz]0-10dB(S22)

SHF -20
reserves the right to change specifications and design without notice - SHF BT65R - V005 - April 20, 2020

-30

-40

Page 5/8

Typical Low Frequency Response of AC Path
Measurement without applied DC voltage.
W/o option: blue ; Option HC800: red ; Option HV100 and HVC100/800: green

Typical Low Frequency Response of DC Path
Measurement without applied DC voltage.
W/o option and HV100: blue ; Option HC800 and HVC100/800: redNote: 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 BT65R - V005 - April 20, 2020

Page 6/8

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 BT65R - V005 - April 20, 2020

Page 7/8

Mechanical Drawing
12.28

AC

9.812.3mmx)(2212.28

12.6

2DC

6.5

1316V/0,4A

M

2mACm

13AC

32x

12.3

SN XXXX 50 kHz - 65 GHz

9.85.4SHF BT65R-B(212.612.2840x)

6.3

132

DC

6.5

1316V/0,4A2mACm

13x)(213AC + DC2xM312.28

SN XXXX 50 kHz - 65 GHz

9.85.4SHF BT65R-C

6.3

4011.312.66.5

1316V/0,4Ax)(26.3
12.6mm13

AC + DC2x
M

13DC311.3

SN XXXX 50 kHz - 65 GHz29.8

5.4

SHF BT65R-D40

AC + DC340

6.3

AC + DC2xM

316.3

136.3

DC

6.5

1316V/0,4A

SN XXXX 50 kHz - 65 GHz

6.3

25.4

SHF BT65R-A

6.3

2All dimensions in mm

SHF reserves the right to change specifications and design without notice - SHF BT65R - V005 - April 20, 2020

Page 8/8