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	Siz (inches) L x W x H	Mass (g)
L-Band*	83200H	1.0 - 2.0	150 - 200	Conduction	68 - 70%	26 x 3.5 x 3	2950
	83200HR			Radiation		28 x 6.5 x 6.5	2795
S-Band	8412HR	2.3 - 2.8	90 - 140	Radiation	63 - 66%	20.8 x 5 x 5	1250
	84250HR		200 - 300	Radiation	74%	27 x 5 x 5	2250
C-Band	8555H	3.4 - 4.2	20 - 120	Conduction	66 - 70%	15 x 3.1 x 2.9	790
	8555HR			Radiation		18.3 x 5 x 5	1070
X-Band	86100H/86160H	7.0 - 9.0	25 - 170	Conduction	55 - 65%	14.6 x 3 x 3.2	965
	86160HR		100 - 165	Radiation	60 - 62%	17.2 x 5 x 5	1350
Ku-Band	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-Band	9100H	17.0 - 22	30 - 130	Conduction	66%	11.3 x 3 x 2.5	695
	9100HR			Radiation		11.3 x 5 x 5	950
Ka-Band	999H	22 - 40	20 - 200	Conduction	50 - 60%	14.1 x 3.5 x 2.7	1495

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* = In development

Space LTWTA Products
Space Qualified EPCs Product Listing

View a printable version of this chart

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

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