Difference between Travelling Wave Tube and Klystron. 1. In TWT, field travels along with the beam. In Klystron, the field is stationary and only. A traveling-wave tube (TWT, pronounced “twit”) or traveling-wave tube amplifier ( TWTA, pronounced “tweeta”) is a specialized vacuum tube that is used in electronics to amplify radio frequency (RF) signals in the microwave range. The TWT belongs to a category of “linear beam” tubes, such as the klystron, Coupled cavity TWT – in which the radio wave interacts with the beam in a. between magnetrons, klystrons, traveling-wave tubes (TWTs), and gyrotrons. They are quite old books but they will give you a start in the area of cross field.

Author: Kajigar Shaktitilar
Country: Jordan
Language: English (Spanish)
Genre: Sex
Published (Last): 5 May 2010
Pages: 208
PDF File Size: 16.45 Mb
ePub File Size: 8.96 Mb
ISBN: 544-5-12098-204-3
Downloads: 43445
Price: Free* [*Free Regsitration Required]
Uploader: Faukinos

Sorry to say; wrong! Also in my personal opinion Water Tubing is awesome!

Difference between Travelling Wave Tube and Klystron

The interaction of an electron beam and RF field in the TWT is continuous over the entire length of the circuit. Main content starts here.

Theactual OD of a tube is just the same as it’s nominal OD. British inventions Microwave technology Vacuum tubes.

What is the difference between tube and rail? Helix TWTs are limited in peak RF power by the current handling and therefore thickness of the helix wire. Pipes areused to transport something, and tubes to construct something;hence, tubes are defined by the od “outside diamater” and wt “wallthickness” for construction stabilityand pipes id insidediamater to allow a calculation for transportation viz. Microwave tubes used in satellite communications and troposcatter differencw systems are mainly TWTs Traveling Wave Tubes and klystrons.


The electron gun, the collector and the electron beam focusing structure are common elements to all of these tubes. It is known by this name due to its reflex action of electron beam.

Electron beams and microwave vacuum electronics. These configuration changes resulted in much greater wave amplification than Haeff’s design as they relied on the physical principles of velocity modulation and electron bunching. The main difference between tube and pipe arises while consideringthe standard dimensions.

Usuallythis tube does not stay in for very long. As it passes through the RF circuit, the velocity-modulation in the electron beam changes gradually to density-modulation, and then induces an amplified RF wave at the output section of the slow-wave circuit.

The TWTs are of two types viz. This page was last edited on 18 Septemberat It is used to produce high-power radio frequency signals. TWT uses non-resonant wave circuits for input and output and is a wide band device.

The Copper industry calls all cooper tubular products “Tubes” butthey designate a “Type”. Actually tube is used when we need to transfer heat from its wallsand we want this to be happen while in pipes we try to stop theheat transfer such klysttron we use tubes in boilers because we make steamwe need to transfer the heat while when we transport steam we usepipes because we wana save heat energy.


This is mainly a feeding tube andcan stay in for weeks to a few months. Klystron diffedence as buncher catcher is used as microwave tube for? Retrieved 2 July A pre-set tuning mechanism is installed in some klystrons to change channels quickly to save customers the extra task of channel tuning.

Pipe is designated by a “Nominal Pipe Size” based uponthe ID inside diameter of the most common … wall thickness. When it’s thicknessis schedule xxs 0.

M&MA: Difference between Travelling wave tube and klystron

TWT has wider bandwidth of operation. Klystron usually will have two or more cavities as per gain and bandwidth requirements needed for different applications.

In klystron, instead of air, electrons are used which vibrate at desired frequency inside the glass tube and generates microwave energy. This structure provides a helical waveguideand hence amplification can occur via velocity modulation. Potentiometer digital Variable capacitor Varicap. They are used as low power amplifier. It uses helix structure. TWT does not have resonant cavity. The signal is normally fed into the helix via a waveguide or electromagnetic coil placed at one end, forming a one-way signal path, a directional coupler.

The electron beam is velocity-modulated by the RF field in a gap of the input cavity.