e2v' Coupled-Cavity TWTs are ideal for compact, reliable, high performance multi-function radars. They have high gain, high efficiency, shadow grid modulation, and PPM (periodic permanent magnet) focusing.
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e2v has been leading the way in the design, development and manufacture of a wide range of reliable gas sensors for OEMs since developing the catalytic bead gas sensor (which became known as the Pellistor) in 1967.
As an independent OEM supplier of gas sensors, e2v pride themselves on providing customers with unrivalled product reliability and personal product support via specialist engineers.
e2v gas sensors are built to the highest standards with all pellistor and infrared gas sensors achieving ATEX and IECEx certification, e2v gas sensors are also UL and CSA approved.
e2v is ISO9001:2000 certified with the automotive semiconductor types also ISO/TS16949:2002 certified.
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e2v manufactures a range of gridded tubes for FM, MW and SW radio transmission. Ranging in power output from 4.5 kW to 530 kW, many of the triodes and tetrodes that we manufacture are either direct equivalents for other manufacturers' tubes, or can be used to replace them with our guidance and at relatively low cost. Our dedicated engineering team will be pleased to advise on any particular tube or application.
At e2v we have a long history of manufacturing industrial power tubes. For over 50 years, we have been supplying our customers with power tubes providing outstanding performance and long life. We pride ourselves on our exceptional technical support, both during the initial product selection and once the tubes are in operation, and find that our customers value being able to speak directly to the experts.
We are committed to working in partnership with our customers to provide them with exactly what they need. Most new products are developed in close cooperation with key OEMs. We continually strive to be ever more responsive to customer needs, investing in manufacturing lead-time reduction and improved customer service. All our tubes are subjected to extensive high voltage conditioning and full functional RF/DC testing procedures.
Ranging in power output from 4.5 kW to 530 kW, many of the triodes and tetrodes that we manufacture are either direct equivalents for other manufacturers' tubes, or can be used to replace them with our guidance and at relatively low cost. Our dedicated engineering team will be pleased to advise on any particular tube or application.
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e2v has extensive expertise in the design and manufacture of high quality helix TWTs (travelling wave tubes), producing the first glass tube devices in the 1950s before progressing to the production of metal/ceramic tubes a decade later. These rugged and compact designs have since become the market leaders. e2v now supplies to both commercial and military markets.
We specialise in developing tailor-made products to satisfy the specific requirements of our customers. Our engineers draw upon world-class facilities and decades of technical knowledge, while using the most advanced TWT simulation tools.
Our range of helix TWT products covers both commercial and military applications:
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e2v is a world leading supplier of a wide range of plug-in and build-up Inductive Output Tubes (IOTs) and their high efficiency versions, the Energy Saving IOT (ESCIOT®). which are used as the final amplifier stage in UHF television transmitters and more recently in high power scientific power supplies.
IOT technology is a highly cost-effective solution for analogue television transmitters over 10kW peak sync and digital transmitters over 5kW average power.
Whilst an IOT powered television transmitter will consume typically 50% of the power of a klystron transmitter they usually replace. Tests have proved that the ESCIOT® offers ever greater savings, being 40-50% more efficient than an IOT in both analogue and digital service. The graph below illustrates the substantially improved efficiency levels experienced with the e2v ESCIOT® in comparison to an IOT:
The final choice of whether to use a conventional IOT or an ESCIOT® comes down to a calculation comparing the saving in electricity consumption to the additional cost of the transmitter system.
The graph below compares the cost of running a 30kW average digital power transmitter, over a 20 year period, of replacement tubes (assuming 30,000 hours life), and electricity costs, against varying costs of electricity per hour.
As you would expect, the savings achievable with an ESCIOT® powered transmitter are based on efficiency and so increase linearly with electricity cost.
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Inductive Output Tubes (IOTs and ESCIOTs)
e2v klystrons are in use worldwide in analogue television transmitters and will fit most transmitter types. The range consists of pulsed wideband types. Although now replaced in new transmitters by IOTs and their even higher efficiency versions, ESCIOTs, they are still used globally for spares to keep analogue services running.
More recently Klystrons have been used in high power supplies for Scientific establishments, specificaly in the High Energy Physics arena.
e2v is the world's largest manufacturer of pulse magnetrons anda world leader in magnetron technology. Its product capabilities range in frequency from 1GHz to 95GHz at powers from 1.5kW to 6MW and encompass a wide range of anode, cathode and tuning technologies, dependent upon the application.
The company has been manufacturing magnetrons, established under the EEV brand, for several decades. e2v aims to meet the stringent specifications for the military market, the power, long life and low running costs for industry and medicine, and to achieve the price performance requirements for the highly competitive marine and airborne radar markets.
In 2003, e2v won a Queen's Award in the International Trade category for its low-power linear accelerator (LINAC) magnetrons, which provide the vital microwave energy in radiotherapy machines. In 2004, e2v was presented with a Queen's Award for Innovation for its fast tune magnetron.
e2v recently launched its new MG6090 series of magnetrons to the market. The tunable S-band MG6090 has been developed in direct response to customer requirements, and has been designed specifically for radiotherapy linear accelerator use.
View the MG6090 series datasheet.
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Magnetrons
e2v is recognised and respected for pioneering new developments in microwave devices: specifically microwave radar components, microwave products and RF technology. Within the solid-state microwave and electronics operation, this respect continues as customers choose e2v's products and engineering skills to meet ever more demanding technological challenges.
Today's solid-state microwave and electronics operation provides a wide range of microwave and electronic components and sub-systems to markets including defence radar, marine radar, civil airborne radar, communications, medical and most recently automotive.
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Microwave devices
e2v offers a range of compact modulator systems based around its patented solid-state switching technology. High power pulsed systems are developed for radar and for linear accelerators used in industrial, scientific and medical applications.
The compact modulator is a direct switching unit, designed to drive either e2v's microwave tubes or those from other manufacturers. The high voltage modulators and semiconductor switches provide a real proven alternative to conventional “line and hard valve type” modulator technology. Using innovative assemblies of solid-state switches, together with compatible power supplies and energy storage units, gives a significant improvement in pulse shape and quality. A flexible control system gives the ability to remotely vary the pulse parameters on a pulse-to-pulse basis. These features make the units ideal for systems where precise energy control is essential.
e2v's MTP5838 and MPT5839 modulator systems are designed for medical radiotherapy LINAC use. When combined with an e2v magnetron, a reliable, high energy, pulsed microwave source for electron acceleration is provided.
Product Features
Control Interface
The modulator system can be controlled and monitored by the use of the RS485 serial bus interface or the hard wired user interface, or the fibre optic interface. For a given application a customer can select between these options or e2v can configure and combine them in order to integrate with the host system. The control interface can also be configured so the modulator system operates at a single operating point autonomously.
e2v works closely with customers to provide generic or bespoke modulator system solutions as required. The company prides itself on its exceptional technical support, both during the initial product selection and once products are in service.
Modulators
e2v has decades of experience in the design and production of component technology, such as magnetrons, thyratrons, klystrons and IOTs. Building upon this expertise and the company's excellent reputation in vacuum tube technology, e2v today offers a complete RF system capability, which aims to serve ‘next generation' science projects.
e2v offers:
1.3GHz IOT amplifier systems, developed specifically for 4th generation light source applications, and based around e2v's IOT116LS
Applications include:
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e2v have been developing and manufacturing Exploding Foil Initiators (EFIs) and Electronic Safety and Arming Units (ESAU) since the mid 1980s.
Containing approved secondary explosive materials, e2v EFIs have been fully characterised against STANAG 4560 and are available in both standard and custom outlines.
e2v ESAU technology employs solid-state sensing and switching components providing a fully electronic solution in a small volume.
Developed entirely in the UK, e2v EFI/ESAU technology is available with 100% European content and is suitable for application in all weapon system types including missiles, bombs, sea mines, torpedoes and Explosive Ordnance Disposal Systems.
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e2v designs and manufactures a wide range of High Power Satellite Uplink Amplifiers (HPAs) under the Stellar, StellarCool™ and Stellarmini™ brands.
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The Stellar range covers all of the primary satellite frequency bands including: C-band, X-band, Ku-band, DBS and Tri-band.
With over 30 years experience in the design and manufacture of high powered Travelling Wave Tube (TWT) amplifiers, the Stellar family is designed to be extremely robust and highly efficient, yet lightweight, with proven performance in high temperature and high humidity environments.
The Stellar family of high power outdoor amplifiers are ideal for use in:
The range includes:
| 750W | 600W | 500W | 400W | 180W | 150W | 140W | 120W | |
| C-band | Ö | Ö | ||||||
| X-band | Ö | Ö | ||||||
| Ku-band | Ö | Ö | Ö | Ö | Ö | |||
| DBS | Ö | |||||||
| Tri-Band | Ö | Ö |
Accessories
in support of the Stellar family e2v offer a wide range of accessories, including:
Stellar Satcom Amplifiers
e2v produces a range of specialised two- and three-electrode spark gaps and trigger transformers. These were originally developed for specific customer applications, but we also offer bespoke solutions.
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Spark gaps
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Our team of dedicated thyratron specialists work on the design and manufacture of our high quality thyratrons, providing technical support for existing applications and developing appropriate solutions for new projects.
Five decades of research, development and continuous production experience in the field of hydrogen thyratron manufacture, coupled with our extensive testing facilities and test programmes, guarantee the strictest control over design, materials and manufacturing processes.
Our policy of continually developing thyratron technology and circuit techniques ensures the best possible solution is available to our customers.
Our Capabilities
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Thyratrons
e2v offers a proven, high-power, robust, super-heterodyne RF transceiver, AT86RF211S, for ISM (Industrial, Scientific and Medical) applications (up to + 16dBm) in the 433, 868 & 915 MHz bands. It provides a high integration level and enables easy implementation.
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Specific applications include:
Please follow the links below to the products we offer for this application.
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