RPK
SENIOR MEMBER
- Joined
- Jul 6, 2009
- Messages
- 6,862
- Reaction score
- -6
- Country
- Location
Where microwave tubes take shape - The Hindu
Microwave tube is of vital import in defence operations and a Bangalore-based centre develops its advanced variants.
You and I may think of the microwave oven, when we hear the word microwave. However microwaves make greater impacts in other places, including defence. Microwave tubes produce microwaves. More precisely, a microwave tube generates and amplifies higher frequencies in the microwave range of the frequency spectrum. Microwave tubes usually work on the principle of velocity modulation.
There are different types of microwave tubes such as klystrons, travelling-wave tubes, backward-wave oscillators, magnetrons, and crossed-field amplifiers. Klystrons require a strong electrostatic field for efficient emission of an electron beam. Two-cavity klystrons are often used as communication equipment and radar devices. Crossed-field amplifiers are generally used in master oscillator power amplifiers. The magnetron reigns well in consumer electronics. It is the heart of the microwave oven.
The electron beam generated by a microwave source would operate well at temperatures between 910 and 1200°C. Materials like tungsten, molybdenum, molybdenum-ruthenium, rhenium, tungsten-rhenium, nickel, and stainless steel are needed to make microwave tubes.
We are now discussing the use of microwave tubes in defence services,. Under the Defence Research and Development Organisation, there is an institution that focusses on R&D on this significant component of several devices: The Microwave Tube Research & Development Centre (MTRDC), BEL Complex, Jalahalli, Bangalore - 560 013; website: http://drdo.gov.in/drdo/labs
/MTRDC/English
/index.jsp?pg=homebody.
jsp.
MTRDC was established in 1984 to develop advanced types of microwave tubes establish self-reliance in this strategic area. The centre is housed in the Bharat Electronics Complex at Bangalore.
What is of interest to prospective research scholars is that the centre has a rich team of committed scientists and support personnel engaged in the research and development of this highly specialised area. Some of the realms of studies are various kinds of microwave tubes, electronic power conditioners, and microwave power modules, transmitters for communication, radar, and electronic warfare systems. The technology developed is usually transferred to Bharat Electronics Ltd., which works under the Department of Defence Production, for appropriate use. MTRDC has an admirable track record, when you count its achievements in the forms of publications, patents, and awards.
Its areas of work are:
Microwave power modules
Design & development of microwave tubes for electronic warfare, communication, and radar.
Enabling technologies for vacuum microelectronic devices
High-emission density electron emitters for microwave tubes
High-power microwave generation and its industrial, scientific applications
New generation devices, like multi-beam klystron, and relativistic magnetron
Computer-aided design and simulation of microwave tubes
Products
Some of the quality products of MTRDC are:
High temperature sintering, brazing furnaces: for high temperature processing, brazing, and treatment of a wide variety of materials such as Kovar (an iron-nickel-cobalt alloy), cupro-nickel, molybdenum, oxygen-free high conductivity copper, and stainless steel.
Dispenser cathodes: State-of-the-art dispenser cathodes with emission densities up to 30 A per sq. cm.
Thin film coating, sputtering facilities: for coating of thin films of materials such as titanium, zirconium, copper, and silicon carbide, using techniques like electron beam evaporation.
Technical facilities
Computer-aided Design Centre helps the design and simulation of different types of microwave tubes.Precision machining facilities, including special purpose facilities such as wire electrical discharge machining, honing machine, ceramic dicing machine, laser interferometer controlled helix winding, and pitch measurement machines.
Facilities for baking and vacuum processing of different types of microwave tubes to achieve sealed-off vacuum.
Thin film facilities for vacuum evaporation/electron-beam evaporation/RF-DC sputtering/X-ray fluorescence for coating thickness measurement/table-top scanning electron microscope
Heat treatment and brazing facilities include high temperature vacuum and hydrogen furnaces/RF induction heater
Power electronics lab had facilities for design and realisation of compact electronic power conditioners.
High voltage test laboratory
Environmental testing facility
Microwave tube is of vital import in defence operations and a Bangalore-based centre develops its advanced variants.
You and I may think of the microwave oven, when we hear the word microwave. However microwaves make greater impacts in other places, including defence. Microwave tubes produce microwaves. More precisely, a microwave tube generates and amplifies higher frequencies in the microwave range of the frequency spectrum. Microwave tubes usually work on the principle of velocity modulation.
There are different types of microwave tubes such as klystrons, travelling-wave tubes, backward-wave oscillators, magnetrons, and crossed-field amplifiers. Klystrons require a strong electrostatic field for efficient emission of an electron beam. Two-cavity klystrons are often used as communication equipment and radar devices. Crossed-field amplifiers are generally used in master oscillator power amplifiers. The magnetron reigns well in consumer electronics. It is the heart of the microwave oven.
The electron beam generated by a microwave source would operate well at temperatures between 910 and 1200°C. Materials like tungsten, molybdenum, molybdenum-ruthenium, rhenium, tungsten-rhenium, nickel, and stainless steel are needed to make microwave tubes.
We are now discussing the use of microwave tubes in defence services,. Under the Defence Research and Development Organisation, there is an institution that focusses on R&D on this significant component of several devices: The Microwave Tube Research & Development Centre (MTRDC), BEL Complex, Jalahalli, Bangalore - 560 013; website: http://drdo.gov.in/drdo/labs
/MTRDC/English
/index.jsp?pg=homebody.
jsp.
MTRDC was established in 1984 to develop advanced types of microwave tubes establish self-reliance in this strategic area. The centre is housed in the Bharat Electronics Complex at Bangalore.
What is of interest to prospective research scholars is that the centre has a rich team of committed scientists and support personnel engaged in the research and development of this highly specialised area. Some of the realms of studies are various kinds of microwave tubes, electronic power conditioners, and microwave power modules, transmitters for communication, radar, and electronic warfare systems. The technology developed is usually transferred to Bharat Electronics Ltd., which works under the Department of Defence Production, for appropriate use. MTRDC has an admirable track record, when you count its achievements in the forms of publications, patents, and awards.
Its areas of work are:
Microwave power modules
Design & development of microwave tubes for electronic warfare, communication, and radar.
Enabling technologies for vacuum microelectronic devices
High-emission density electron emitters for microwave tubes
High-power microwave generation and its industrial, scientific applications
New generation devices, like multi-beam klystron, and relativistic magnetron
Computer-aided design and simulation of microwave tubes
Products
Some of the quality products of MTRDC are:
High temperature sintering, brazing furnaces: for high temperature processing, brazing, and treatment of a wide variety of materials such as Kovar (an iron-nickel-cobalt alloy), cupro-nickel, molybdenum, oxygen-free high conductivity copper, and stainless steel.
Dispenser cathodes: State-of-the-art dispenser cathodes with emission densities up to 30 A per sq. cm.
Thin film coating, sputtering facilities: for coating of thin films of materials such as titanium, zirconium, copper, and silicon carbide, using techniques like electron beam evaporation.
Technical facilities
Computer-aided Design Centre helps the design and simulation of different types of microwave tubes.Precision machining facilities, including special purpose facilities such as wire electrical discharge machining, honing machine, ceramic dicing machine, laser interferometer controlled helix winding, and pitch measurement machines.
Facilities for baking and vacuum processing of different types of microwave tubes to achieve sealed-off vacuum.
Thin film facilities for vacuum evaporation/electron-beam evaporation/RF-DC sputtering/X-ray fluorescence for coating thickness measurement/table-top scanning electron microscope
Heat treatment and brazing facilities include high temperature vacuum and hydrogen furnaces/RF induction heater
Power electronics lab had facilities for design and realisation of compact electronic power conditioners.
High voltage test laboratory
Environmental testing facility
