Pasternack-Enterprises-PEWGA3212

WR-19 Waveguide Voltage Variable Attenuator,  

U Band, 40 GHz to 60 GHz, 0 dB to 30 dB  

Attenuation, 3.4 dB Loss, UG-383/U-M Flange  

TECHNICAL DATA SHEET  

PEWGA3212  

Features  

• WR-19

 

Waveguide Voltage Variable Attenuator  

• 50

 

Ohm Design  

• 40

 

GHz to 60 GHz  

• U

 

Band  

• Insertion

 

Loss: 3.4 dB typ  

• Attenuation

 

Range: 0 dB to 30 dB typ  

• DC

 

Control Voltage: 0 Vdc to +5 Vdc  

• Max

 

RF Input Power (CW) +23 dBm  

• RF

 

Input and Output Waveguide Flange UG-383/U-M  

• Solder

 

Pins for DC Control Voltage and Ground  

• Operational

 

T

e

mperature Range -40°C to +80°C  

• Rugged

 

and Compact Aluminum Gold Plated Package  

Design  

Applications  

• Military

 

& Space  

• R&D

 

Labs  

• Communicatoin

 

Systems  

• Radar

 

Systems  

Description  

• Microwave

 

Radio Systems  

• RF

 

Wideband Front Ends  

•

T

e

st

 

Instrumentation  

The PEWGA3212 is a WR-19 Waveguide Voltage Variable Attenuator, operating across the U Band from 40 GHz to 60  

GHz. This

 

50 Ohm design has 3.4 dB

 

typ insertion loss with a maximum (CW) input power handling of +23 dBm.

 

The  

control voltage is 0 Vdc to +5 Vdc to adjust the attenuation level from 0 dB to 30 dB typ across the full frequency band.

 

The  

rugged and small size aluminum package design is gold plated and supports a UG-383/U-M waveguide flange pattern at the  

RF input and output ports.

 

Solder pins are used for DC voltage control and ground.

 

The module operates across a wide  

temperature range from -40°C to +80°C.  

Configuration  

Waveguide  

WR-19  

Flange  

Body Material and Plating  

UG-383/U-M  

Aluminum, Gold  

Electrical Specifications

Values at 25°C, sea level  

Description  

Minimum  

Typical  

Maximum  

Units  

Frequency Range  

40  

0

60  

30  

3.7  

23  

5

GHz  

dB  

Typical Attenuation Value  

Insertion Loss  

Maximum Pin (CW)  

Control Voltage  

.

3.1  

3.4  

dB  

dBm  

Vdc  

0

Electrical Notes:  

1.) Open and short-circuit loads are not recommended at the attenuator output.  

2.) Ensure proper 50 Ohm load before turning the attenuator “ON”.  

3.) Do not put any foreign objects inside the waveguide. Warranty will be voided.  

Click the following link (or enter part number in “SEARCH” on website) to obtain additional part information including price,  

inventory and certifications:

PEWGA3212 REV

 

1  

1

WR-19 Waveguide Voltage Variable Attenuator,  

U Band, 40 GHz to 60 GHz, 0 dB to 30 dB  

Attenuation, 3.4 dB Loss, UG-383/U-M Flange  

TECHNICAL DATA SHEET  

PEWGA3212  

Biasing Up and Power Down Procedure  

Biasing Up Procedure  

Power Down Procedure  

Step 1  

Step 2  

Step 3  

Connect Ground Pin  

Step 1  

Step 2  

Step 3  

Turn OFF RF input  

Turn OFF DC Supply Voltage  

Remove Ground  

Apply DC Supply Voltage  

Turn ON RF input  

.

Mechanical Specifications  

Description  

Flange 1  

Waveguide  

Flange 2  

Interface  

UG-383/U-M  

WR-19  

UG-383/U-M  

…  

Temperature  

Operating Range  

Storage Range  

Size  

-40 to +80 deg C  

-40 to +100 deg C  

Length  

Width  

1.5 in [38.1 mm]  

1.5 in [38.1 mm]  

1.2 in [30.48 mm]  

Height  

.

Weight  

0.15 lbs [68.04 g]  

Compliance Certifications

(see

for current document)  

Plotted and Other Data  

Notes:  

• Values

 

at 25 °C, sea level  

Click the following link (or enter part number in “SEARCH” on website) to obtain additional part information including price,  

inventory and certifications:

PEWGA3212 REV

 

1  

2

WR-19 Waveguide Voltage Variable Attenuator,  

U Band, 40 GHz to 60 GHz, 0 dB to 30 dB  

Attenuation, 3.4 dB Loss, UG-383/U-M Flange  

TECHNICAL DATA SHEET  

PEWGA3212  

Absolute Maximum Rating  

Parameter  

Rating  

Operating Temperature  

-40°C to +80°C  

-40°C to +100°C  

0.1W  

Storage Temperature  

Total Power Dissipation  

Power Handling (CW)  

Control Voltage  

+23dBm  

.

+10V  

Typical Performance Data  

dB  

50  

Insertion Loss vs. Frequency  

40  

30  

20  

10  

0

-10  

-20  

-30  

-40  

-50  

40.0

GHz

42.0  

44.0  

46.0  

48.0  

50.0  

52.0  

54.0  

56.0  

58.0  

60.0  

dB  

Input Return Loss vs. Frequency  

2.00  

1.60  

1.20  

0.80  

0.40  

0.00  

-0.40  

-0.80  

-1.20  

-1.60  

-2.00  

40.0GHz  

42.0  

44.0  

46.0  

48.0  

50.0  

52.0  

54.0  

56.0  

58.0  

60.0  

Click the following link (or enter part number in “SEARCH” on website) to obtain additional part information including price,  

inventory and certifications:

PEWGA3212 REV

 

1  

3

WR-19 Waveguide Voltage Variable Attenuator,  

U Band, 40 GHz to 60 GHz, 0 dB to 30 dB  

Attenuation, 3.4 dB Loss, UG-383/U-M Flange  

TECHNICAL DATA SHEET  

PEWGA3212  

dB  

5

Output Return Loss vs. Frequency  

4

3

2

1

0

-1  

-2  

-3  

-4  

-5  

40.0 GHz  

42.0  

44.0  

46.0  

48.0  

50.0  

52.0  

54.0  

56.0  

58.0  

60.0  

dB  

Control Voltage vs. Attenuation  

40  

35  

30  

25  

20  

15  

10  

5

@40 GHz  

@50 GHz  

@60 GHz  

0

-5  

-10  

0.0 Vdc  

0.5  

1.0  

1.5  

2.0  

2.5  

3.0  

3.5  

4.0  

4.5  

5.0  

WR-19 Waveguide Voltage Variable Attenuator, U Band, 40 GHz to 60 GHz, 0 dB to 30 dB Attenuation, 3.4 dB Loss, UG-383/  

U-M Flange from Pasternack Enterprises has same day shipment for domestic and International orders. Our R

F

,

m

icrowave  

and millimeter wave products maintain a 99.4% availability and are part of the broadest selection in the industry.  

Click the following link (or enter part number in “SEARCH” on website) to obtain additional part information including price,  

inventory and certifications:

URL:

PEWGA3212 REV

 

1  

4

CAD Drawing  

WR-19 W

, U Band, 40 GHz to 60 GHz,  

0 dB to 30 dB Attenuation, 3.4 dB Loss, UG-383/U-M Flange  

PEWGA3212 REV

 

1  

5