0
A waveguide, is a hollow rectangular tube, designed to channel microwaves from the Magnetron to the outside world.
Rather than use a wire, this is found to be the best way to transfer microwaves at 3 cm to 10cm wavelength. (Some 10cm systems use large coax instead)
They are normally found on radar systems, to transfer the signal to and from the rotating scanner to the transceiver unit.
Modern radars keep the length of the waveguide to a minimum, by housing the transceiver in the motor unit of the scanner, instead of a separate room.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is detector mount in waveguide and its function?
used to detect the microwave signal
Why rectangular wave guide is preferred over a square waveguide for usual microwave transmissions?
A square waveguide does not allow single mode operation as for example fc(TEmn)=fc(TEnm).
How horn antenna is fed?
Horn antenna are typically fed by a section of a waveguide, the waveguide itself is often fed with a short dipole.
Which antenna is best guided by waveguide?
horn
What mode is less attenuation in circular waveguide?
TE10
What are the Differences between horn antenna and waveguide?
waveguide is a metal pipe that contains and guides microwaves from place to place in a microwave system (e.g. oscillators, amplifiers, mixers, modulators, filters, antennas)horn antenna has a waveguide connected at its focus, in transmit mode the waveguide feeds the horn which then emits a microwave beam, in receive mode the horn collects a microwave beam and concentrates it int the waveguide
Why is microwave circuit design often considered 'more of a plumbing job than a wiring job'?
Because microwave circuits in waveguide use hollow waveguide sections with flanges to bolt them together.
What is detector mount in waveguide and its function?
used to detect the microwave signal
Why must the air inside a waveguide be dehumidified?
Moisture in the air in a waveguide can scatter the microwave energy the waveguide is designed to transport. This translates into signal loss or attenuation. The VSWR drops, and that is not a good thing.
What are the practical applications of horn antenna?
microwave. it couples the waveguide to open space.
What is function of waveguide in microwave devices?
It replaces a coax cable, which won't work at those frequencies.
What is the use of attenuator in microwave test bench?
variable attenuator in microwave test bench is used to attenuate the amplitude of wave traveling through d rectangular waveguide
Why rectangular wave guide is preferred over a square waveguide for usual microwave transmissions?
A square waveguide does not allow single mode operation as for example fc(TEmn)=fc(TEnm).
What is the dominant mode in rectangular waveguide?
Rectangular Waveguide - TE10; (TM11 in case of TM waves) Circular Waveguide - TE11;
What are electromagnetic waveguides?
A waveguide is a metal tube that is used to carry radio frequency energy from one place to another. It is commonly used in microwave telecommunications and radar. A typical waveguide ifor 10,000 Megahertz is about 1" by 0.5 " rectangular cross-section. There are also circular and eliptical waveguides. The size of the guide depends on the frequency in use. The lower the frequency, the bigger the waveguide. I have seen a waveguide that you could walk around in for 100 Mhz. Once you get past about 1000Mhz, wire transmission lines become very inefficient, and waveguides are better.
When is it advantageous to use a circular waveguide?
Circular waveguides offer implementation advantages over rectangular waveguide in Calculations for circular waveguide requires the application of Bessel.
What has the author David Marlow Kerns written?
David Marlow Kerns has written: 'Basic theory of waveguide junctions and introductory microwave network analysis' -- subject(s): Microwaves, Wave guides
