High-Power Amplifiers
Our extensive portfolio of RF high-power amplifiers (HPAs) includes travelling wave tube amplifiers (TWTAs), solid-state power amplifiers (SSPAs), redundant system controllers, and sub-systems.
The widest HPA range on the market
ETL’s range of high power amplifiers offers comprehensive coverage. These amplifiers are the most compact and lightweight available, as much as 40% smaller and lighter than competitor products. They offer modern design with common parts, reducing cost burdens for spares and maintenance across the range. The amplifiers feature flexible protocols to allow interoperability with other manufacturers’ products, and we provide a proactive support service. For customer ease, our redundancy systems are provided ready for tool-free installation, and the units can be easily installed/removed with a few simple movements.
Reliable solutions for mission-critical applications
Our high-power amplifiers (HPAs) are reliable solutions for mission-critical applications. These are powerful solutions tailored to real-world customer needs.
Designed by industry-leading experts, this diverse range has rapidly become a trusted provider among system vendors across the international satcoms market.
Travelling Wave Tube Amplifiers (TWTA)
TWTAs use vacuum tube technology to amplify RF signals, offering high power output, wide bandwidth, and efficiency at high frequencies (above 10GHz). They are commonly used in satellite communications due to their ability to handle high peak power.
However, they are larger, require high voltage, and have a limited lifespan compared to solid-state alternatives. Despite their higher cost and maintenance needs, TWTAs remain the preferred choice for high-frequency, high-power applications where efficiency and bandwidth are critical.
Solid-State Power Amplifiers (SSPA)
SSPAs use semiconductor technology (e.g., GaN or GaAs transistors) to amplify RF signals, offering high reliability, compact size, and better linearity. They are commonly used in satellite communications, radar, and broadcasting, particularly in lower-frequency and digital applications.
While they typically provide lower power output than TWTAs, they are more efficient at lower frequencies, require less maintenance, and have a longer lifespan. SSPAs are ideal for applications where reliability, efficiency, and cost-effectiveness are key considerations.
SpacePath TWTA product range
Our SpacePath Travelling Wave Tube Amplifiers (TWTAs) utilise third-generation high-power amplifier technology with market-leading features to streamline maintenance, drive down cost and simplify overall system operation.
Our comprehensive range of high-power amplifiers support all mission-critical satellite communication segments, including digital satellite newsgathering (DSNG), military satellite communications, large teleports, mobile applications and flyaway systems.
With outdoor and indoor units available, the range covers C, X, Ku, DBS, K, Ka, Q & V-Band frequency ranges (5.85 – 52.4 GHz) and power outputs ranging from 85W to 1250W.
SSPA product range
Our solid-state power amplifiers (SSPA) offer unmatched reliability and linearity for SATCOM and military applications.
Powered by advanced GaN technology, they deliver superior power density, efficiency, and up to 10x more output than GaAs HEMT, withstanding extreme conditions.
With outdoor and indoor units available, the range covers C, X, Ku, and Ka-band frequencies, with L-band inputs, and 8W to 1500W output power.
Troposcatter product range
We design and manufacture Block Upconverters (BUCs) for troposcatter communication.
Troposcatter uses high-frequency radio signals directed at specific angles over the horizon to create a ‘scatter field’ utilising the troposphere, with the refracted signals then received up to 300 miles away.
Related products
View our selection of TWTAs, SSPAs, and Troposcatter solutions
STA5340
SPACEPATH 400W Ku-band TWTA
With variable gain, optional BUC/lineariser and frequency range options
IPB-CB00625-RMSX
1800W C-Band Indoor SSPA
Super high power density GaN-powered indoor BUC/SSPA
STR73125P
SPACEPATH 1250W Ku-band indoor TWTA
With variable gain, optional lineariser and frequency range options
TPB-KUB05XX-HMS
150W-200W Ku-band GaN BUC/SSPA range
Super compact GaN-powered outdoor BUC/SSPA
STA6275
SPACEPATH 750W X-band TWTA
With variable gain, optional BUC/lineariser and frequency range options
IPB-KXB0XXX-RMSX
50W-1000W Ku-Band Indoor SSPA range
Super high power density indoor BUC/SSPA
TPB-CB005X0-HMS
150W-250W C-band BUC/SSPA range
Super high power density GaN-powered outdoor BUC/SSPA
STA5725P
SPACEPATH 250W peak V-band TWTA
With variable gain, optional lineariser and frequency range options
TPB-KXB05X0-HMX
250W-500W Ku-band GaN BUC/SSPA range
Compact GaN-powered outdoor BUC/SSPA
STR5340
SPACEPATH 400W Ku-band indoor TWTA
With variable gain, optional lineariser and frequency range options
We support customers in over 130 countries, with over 40 years of experience in design and manufacturing.
1/3
Engineered for Reliable RF Performance
Every RF environment is unique. Our expert engineers design and manufacture systems tailored to your specifications — ensuring unmatched scalability, reliability, and performance.
