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L-3 Electron Technologies, Inc. (ETI) has a long history of designing and manufacturing space qualified Traveling Wave Tubes. ETI space TWTs and TWTAs have been used in scientific experiments, manned missions, and communication applications by both military and commercial customers.

Early programs included Syncom, the ATS series, and the Intelsat series. More recently, ETI Space TWTs have been used in domestic communication satellites both in the U.S. and abroad.

To meet the requirements for future space programs, these devices continue to be developed and refined. This work is advancing the state-of-the-art in areas of longer life, lighter weight, higher efficiencies, lower distortion, higher frequencies, and smaller size.

ETI's Linearized Traveling Wave Tube Amplifier (LTWTA) product line is recognized as the leading supplier of high efficiency, lightweight Electronic Power Conditioners (EPC) for satellite applications. ETI offers complete integration capability including linearizers and channel amplifiers and high voltage EPCs for commercial and government applications. Products are available in single, dual, regulated and unregulated configurations.

Our state-of-the-art designs yield cost effective LTWTA and sub-systems.

ETI LTWTA provides design, manufacturing, integration and test for the following:

Regulated bus single TWTA and LTWTA

Regulated bus dual TWTA and LTWTA

Unregulated bus single TWTA and LTWTA

Space LTWTA Products
Space Qualified TWT Product Listing

Band

L-3 ETI Model

Freq
(GHz)

Power Range
(W)

Cooling

Efficiency

Size (inches)
L x W x H

Mass
(g)

L

83200H

1.0 - 2.0

80 - 250

Conduction

68 - 70%

26 x 3.5 x 3

2950

83200HR

Radiation

28 x 6.5 x 6.5

2795

S

8412HR

2.3 - 2.8

90 - 150

Radiation

62 - 65%

20.8 x 5 x 5

1250

84250HR

200 - 300

Radiation

66 - 69%

27 x 5 x 5

2250

C

8555H

3.4 - 4.2

20 - 120

Conduction

54 - 65%

15 x 3.1 x 2.9

790

X

86160H

7.0 - 9.0

25 - 165

Conduction

55 - 65%

14.6 x 3 x 3.2

965

Ku

88150H

10.7 - 12.75

30 - 100

Conduction

60 - 70%

11.8 x 3.1 x 2.7

695

88150HR

100 - 150

Radiation

14.8 x 3 x 2.5

980

K

9100H

17.0 - 22

30 - 130

Conduction

65%

11.3 x 3 x 2.5

695

9100HR

Radiation

11.3 x 5 x 5

950

Ka

99XXH

22 - 40

20 - 200

Conduction

50 - 60%

14.1 x 3.5 x 2.7

1495

View a printable version of this chart

Space LTWTA Products
Space Qualified EPCs Product Listing

Bus
Voltage

Configuration

DC Processed
Power

Typical
Efficiency

Mass

ETI Model

Regulated
35V, 50V,
75V & 100V

Single
(1 TWT & 1 EPC)

up to 300W

94%

< 1200g

2000Hx

Single
(1 TWT & 1 EPC)

up to 500W

94%

< 1550g

2500Hx

Dual
(2 TWTs & 1 EPC)

up to 600W

94%

< 1750g

2400Hx

Unregulated
22V to 42V

Single
(1 TWT & 1 EPC)

up to 120W

91%

< 1250g

2300Hx

Single
(1 TWT & 1 EPC)

up to 250W

93%

< 1450g

2302Hx

View a printable version of this chart

We appreciate your interest in ETI products. Further information regarding products described on this page can be obtained by contacting Charles Scholz, LTWTA Product Marketing Manager, at 310/517-5640 or Charles.E.Scholz@L-3Com.com

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