0
waveguides are used instead of coax because at the high microwave frequencies coax would radiate the signal right through its shield.
waveguides do not replace antennas.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What are the types in waveguides?
3 types: 1.electromagentic waveguides 2.optical waveguides 3.acoustic waveguides
How do you implement launching a spacetime perturbation em wave from a wire antenna cheniere org images emfndns1 emwave2sm jpg on rf circuits antennas and waveguides?
thats a hard question
What is circular waveguide?
It is a waveguide that is circular. Circular waveguides have modes that are described in terms of Bessel functions instead of the sines/cosines used for rectangular waveguides. The disadvantage is that the two lowest modes have cutoff frequencies spaced by less than an octave. Circular waveguides are used for rotating joints, for example in radar. The H01 mode in circular waveguide was used as a low-loss mode for transmitting signals over distance, but this technique has been replaced by fibre-optic cables.
Do ants react differently in the dark?
No, I don't think it would be a problem for them. They live in the ground and it is dark under ground, and they have excellent sense of feel and smell to help them get around.
Difference between coaxial cable and wave guide?
Waveguides are used at higher frequencies where their loss is lower than coaxial cable. Coaxial cable is used at lower frequencies where waveguides are too large and heavy. Lastly Coaxial cable is also used at higher frequencies where some flexibility is required.
Why 625 lines choice instead of 15625 lines in television?
Because frogs do not have antennas
What antennas used in wireless technology?
three basic types of antennas are: omnidirectional; semidirectional and highly directional antennas. typically when you purchase wireless access point and wireless NIC it has attached 2.14dbi omnidirectional antennas
What is the purpose of Cisco antennas?
Cisco antennas are used to stream internet signals to locations that would be difficult to route cables to. The internet signals used by Cisco antennas are between a 2.4-5 GHz range.
Applications of a circular waveguides?
attenuators and phaseshifters
Is an antennas length dependent on the frequency used?
Yes.
What is the average cost of a digital antenna?
Digital antennas usually cost around $40. However you can find cheaper digital antennas that are used.
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.
