Name: Fast Warm-Up TWT Amplifiers
Brand: Teledyne MEC

Solutions

Three-model fast warm-up TWT amplifier family covering 8.0 to 18.2 GHz in X and Ku bands
Output power from 400 W to 1,000 W at duty cycles from 20 to 35 percent
Shadow gridded helix (GRID) construction across the full product family
TNC coaxial output (MEC 3106) and WR-51 waveguide output (MEC 3117X, MEC 3333) for X and Ku-band system integration
Lightweight form factors with units weighing as little as 0.9 kg
Efficiency ratings from 32 to 45 percent reducing thermal management and prime power requirements

Applications

Airborne electronic warfare jamming systems requiring fast operational readiness and low weight
Rapid-deploy ground radar systems where time-to-operate is a program specification
Ku-band communication and data link transmitters on airborne or mobile platforms
Electronic countermeasure systems operating across X and Ku bands
Airborne radar transmitters requiring sustained output above conventional pulsed TWT duty cycle limits
Test and evaluation systems requiring compact, high-efficiency X or Ku-band drive amplifiers

Platforms

Fixed-wing airborne EW aircraft requiring weight-optimized RF power amplification
Rotary-wing platforms where size and weight constraints are more severe than fixed-wing applications
Rapid-deploy and expeditionary ground systems under logistics-constrained conditions
Unmanned aerial systems (UAS) where payload weight budgets demand the highest power-to-weight ratio available
Shipborne and vehicle-mounted EW and radar systems requiring compact amplifier solutions

Specifications

Frequency Range: 8.0 to 18.2 GHz (X and Ku bands)
Output Power Range: 400 W to 1,000 W
Duty Cycle: 20 to 35 percent
Efficiency: 32 to 45 percent
Output Configuration: GRID (shadow gridded helix)
Output Interfaces: TNC coaxial; WR-51 waveguide
Weight: 0.9 kg to 1.5 kg

All TWTs for airborne defense applications require an export license and are controlled military technology.

Please contact our TWT business unit at 916-638-3344. Specifications are subject to change without notice.

Frequently Asked Questions

What is a fast warm-up TWT amplifier?

A fast warm-up TWT amplifier reaches full operational output power more rapidly than conventional TWT amplifiers, making it suitable for airborne and rapid-deploy platforms where time-to-operate is a system requirement. Fast warm-up TWTs operate at intermediate duty cycles of 20 to 35 percent, distinct from both continuous wave TWTs at 100 percent and conventional pulsed TWTs at 2 to 10 percent duty cycle.

What frequency bands do Teledyne MEC fast warm-up TWTs cover?

The product family covers 8.0 to 18.2 GHz spanning X band and Ku band. The MEC 3106 operates from 8.0 to 12.0 GHz, the MEC 3117X covers 15.2 to 18.2 GHz, and the MEC 3333 covers 15.5 to 16.5 GHz. This coverage addresses airborne EW, airborne radar, and Ku-band satellite communication transmitter requirements.

How much output power do fast warm-up TWT amplifiers deliver?

Output power ranges from 400 W (MEC 3117X) to 1,000 W (MEC 3106) depending on model and frequency band. The MEC 3333 delivers 850 W at 15.5 to 16.5 GHz with a 33 percent duty cycle and 34 percent efficiency. All models are rated at their specified duty cycles providing genuine sustained power at the rated level.

What duty cycle do fast warm-up TWTs operate at?

Duty cycles range from 20 percent to 35 percent, significantly higher than the 2 to 10 percent duty cycles of conventional pulsed radar TWTs. Higher duty cycles allow fast warm-up TWTs to sustain output for longer periods per transmission cycle, supporting jamming, data link, and airborne radar waveforms requiring more than brief pulse bursts.

Why are fast warm-up TWTs lightweight compared to other TWT amplifiers?

Fast warm-up TWT amplifiers are engineered for weight-constrained airborne and mobile platforms with units in this family weighing 0.9 kg to 1.5 kg. Shadow gridded helix construction contributes to compact dimensions by improving efficiency and reducing thermal mass. Reduced weight supports payload capacity on airborne platforms and reduces logistics burden on expeditionary systems.

What is shadow gridded helix (GRID) construction?

A shadow gridded helix uses a control grid to modulate electron beam current, improving efficiency and reducing DC power required to produce a given RF output. All three models in the Teledyne MEC fast warm-up TWT family use GRID construction with efficiency ratings from 32 to 45 percent, reducing prime power draw from the aircraft or platform power supply.

What output connector interfaces are available?

The MEC 3106 X-band model uses a TNC coaxial output interface compatible with standard coaxial transmission line used in airborne RF systems. The MEC 3117X and MEC 3333 Ku-band models use WR-51 standard waveguide output flanges for integration with Ku-band waveguide components and antennas.

How do fast warm-up TWTs differ from pulsed radar TWTs?

Pulsed radar TWTs are optimized for very high peak power at low duty cycles of 2 to 10 percent for short intense radar pulses. Fast warm-up TWTs operate at intermediate duty cycles of 20 to 35 percent prioritizing sustained output, low weight, and fast readiness over peak power density. Fast warm-up designs serve EW jamming, data links, and airborne radar waveforms requiring sustained transmission.

What platforms and applications are fast warm-up TWTs suited for?

Fixed-wing airborne EW aircraft and electronic attack platforms where amplifier weight directly affects mission capability. Rotary-wing and unmanned aerial system platforms with severe weight restrictions. Rapid-deploy and expeditionary ground systems where time-to-operate after power-up is a tactical requirement. Airborne Ku-band communication and data link transmitters requiring compact sustained-power amplification.

Fast Warm-Up TWT AmplifierA fast warm-up TWT amplifier is a microwave power amplifier engineered to reach operational output rapidly after power application, combining intermediate duty cycles of 20 to 35 percent with low weight for airborne and rapid-deploy platform use. Teledyne MEC offers fast warm-up TWT amplifiers from 8 to 18.2 GHz with output power up to 1,000 W.

Teledyne Microwave Solutions MEC offers fast warm-up TWT amplifier solutions for airborne electronic warfare, rapid-deploy radar, and Ku-band communication applications. Key capabilities include: 8 to 18.2 GHz coverage across X and Ku bands, output power from 400 W to 1,000 W, efficiency up to 45 percent, and unit weights as low as 0.9 kg.

Frequency Range: 8.0 to 18.2 GHz
Output Power: 400 W to 1,000 W
Duty Cycle: 20 to 35 percent
Efficiency: 32 to 45 percent
Weight: 0.9 kg to 1.5 kg
Number of Models: 3

Fast warm-up TWT amplifiers from Teledyne MEC are used in airborne electronic warfare jamming systems, rapid-deploy radar platforms, unmanned aerial systems, Ku-band airborne communication transmitters, and compact electronic countermeasure systems in the defense and aerospace industry.