SHF Communication Technologies AGWilhelm-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 DX45RDiplexer

SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

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Description
The SHF DX45R diplexer is the RoHS compliant successor of the SHF DX45. A diplexer is essentially abias tee with a certain bandwidth in the low frequency path to combine or separate high frequency and low
frequency signals into or from a single line.
Any existing DC content is blocked from its HF input. Based on SHF’s air line construction, it offers
resonance-free transmission up to 45 GHz. In addition to the low 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- HF port: 2.92 mm male, HF+LF port: 2.92 mm female

B- HF port: 2.92 mm female, HF+LF port: 2.92 mm male

C- HF port: 2.92 mm male, HF+LF port: 2.92 mm male

D- HF port: 2.92 mm female, HF+LF 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. For Option X01 and X02 is configuration B not available.
The low frequency port is always SMA female.

Options

HVC50/1000

HVC100/2000 - High Voltage & Current (maximum voltage extended to ±100 V and maximumLF current extended to ±2 A)

X01- High Voltage & Current (maximum voltage extended to ±50 V and maximum
LF current extended to ±1 A); Crossover Frequency at ~ 1 GHz

X02- High Voltage & Current (maximum voltage extended to ±50 V and maximum
LF current extended to ±1 A); Crossover Frequency at ~ 2 GHz- High Voltage & Current (maximum voltage extended to ±50 V and maximum
LF current extended to ±1 A)

SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

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Specifications - SHF DX45R
Parameter

UnitSymbolMinTypMaxConditions

30

average power of a continuous 1 signal,50 Ω load and f ≥ 2 x fLow
voltage across the coupling capacitor
between HF and HF+LF port andbetween ports and GND

Absolute Maximum Ratings for SHF DX45R without Option
Maximum HF Input

dBm

Pin max

Maximum Voltage

V±20

Maximum LF Current

mA

±400

Case Temperature

Tcase°C

102550Electrical Characteristics SHF DX45R-A without Option (At 25°C case temperature)
High Frequency 3 dB PointHF-Path

GHz

fHIGH

Low Frequency 3 dB Point
HF-PathMHz

fLOW

High Frequency 3 dB Point
LF-Path

MHz

fHIGH

Low Frequency 3 dB Point
LF-PathHzfLOW0DC 2Insertion lossdB

HF+LF/HF

1.5>0.5 GHz <40 GHz

dB

HF-10-8>1 GHz <35 GHz

dB

HF+LF

-10-8>40 MHz <35 GHz

dB

LF-10<100 MHz±50

1 GHz … 40 GHz, 160 MHz Aperture

Reflection

Group Delay Rippleps

DC ResistanceΩ45

reference is insertion loss at 0.5 GHz

90

25

reference is insertion loss at 0.5 GHz

reference is insertion loss at 0.5 GHz

1<45 GHz<45 GHzLF to HF+LF Port

130 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 may be possible. The maximum RF input power does not change in case a signal is applied to the LFport.
2For resonance-free transmission the LF port requires a 50 Ω termination.
SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

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ParameterUnitSymbol

MinTypMax

Conditions

Mechanical Characteristics
Connector
HF ; HF+LF
LF

ΩDimensions

mmWeightg502.92mm
SMA
please see page 822

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

Unit

Nooption

HVC
50/1000

HVC
100/2000

X01

X02

Maximum Voltage

V±20±50±100±50±50

Maximum LF Current

A±0.4±1±2±1±1Min. High Frequency 3 dB
Point of HF-Path

GHz4545453240

Max. Low Frequency 3 dB
Point of HF-Path

MHz90100

100

1200

3000

Min. High Frequency 3 dB
Point of LF-PathMHz2525256001000

Low Frequency 3 dB Pointof LF-PathHz00000

Typical LF ResistanceΩ11111

SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

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Typical S-Parameters for a DX45R without Option

HF+LF/HF: blue ; HF+LF/LF: red ; HF/LF: green

HF+LF: blue ; HF: red ; LF: green(HF+LF/HF) Phase [°](HF+LF/HF) Groupdelay [ps]Please refer to the mechanical drawing for the pin assignment.

Aperture of group delay measurement: 160 MHz
Phase measurement has been compensated by propagation delay to visualize phase linearity.
SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

Page 5/8

Typical S-Parameters for a DX45R with Option X01

HF+LF/HF: blue ; HF+LF/LF: red ; HF/LF: green

HF+LF: blue ; HF: red ; LF: green(HF+LF/HF) Phase [°](HF+LF/HF) Groupdelay [ps]Please refer to the mechanical drawing for the pin assignment.

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 DX45R - V002 - Dec 21, 2021

Page 6/8

Typical S-Parameters for a DX45R with Option X02

HF+LF/HF: blue ; HF+LF/LF: red ; HF/LF: green

HF+LF: blue ; HF: red ; LF: green(HF+LF/HF) Phase [°](HF+LF/HF) Groupdelay [ps]Please refer to the mechanical drawing for the pin assignment.

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 DX45R - V002 - Dec 21, 2021

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Mechanical Drawing
Ø2.2 x 11mm

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

2.5

valid for all options
2.5

12.7

HF

9.8

6.5
6.3

40

12.7

HF + LF

9.8

6.5

22

LF
9.8

6.5

(2x)

3mm

M
2x

HF + LF

13

12.7

1390 MHz - 45 GHz

5.4

6.3

40

12.6

9.6

HF

22LFm3m

1

6.3

13406.3
12.6M2x

3

HF + LF

(2x)

6.5

9,613

9.8

5.4
90 MHz - 45 GHz

16V/0,4A(2x)

12.7

HF

13

SN XXXX DC - 25 MHzmm

2x
M

12.6

6.3

SHF DX45R-D

33

13
9.6

6.3

40

SN XXXX DC - 25 MHz

LF

1

HF

1316V/0,4A

22

5.4

6.3

SHF DX45R-C

3

12.6

90 MHz - 45 GHz

16V/0,4A

SN XXXX DC - 25 MHzmm

HF + LF13

SHF DX45R-B

1M
2x

6.3

3(2x)

9.6

1316V/0,4A

SN XXXX DC - 25 MHz

LF

5.4
90 MHz - 45 GHz

SHF DX45R-A22All dimensions in mm

SHF reserves the right to change specifications and design without notice - SHF DX45R - V002 - Dec 21, 2021

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