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I size of the object is comparable to wavelength, it will cause error. In high frequency wavelength is very low. So small-small objects will also cause interference, thereby increasing attenuation. Waveguides are hollow metals. Thus wave does not go out and stay inside. Metals does not cause any attenuation. Propagation of EM wave in waveguide is similar to light in optical fiber.
What else can I help you with?
What are the types in waveguides?
3 types: 1.electromagentic waveguides 2.optical waveguides 3.acoustic waveguides
What is high frequency tuned amplifier?
High frequency amplifier is a device which is tuned by high frequency. Tuned means the overlapping of generated frequency with that amplifier.
How t convert high frequency into low frequency?
To covert a high frequency to a low one, we use flip-flops.
Is a GSS alternative that is used when the decision frequency is high and the location of group members is distant?
Teleconferencing
What is difference between Rectangular Waveguide and Circular Waveguide?
circular is easy to manufacture than rectangular As the name indicates the circular is circular in shape and rectangular is rectangular in shape its uses same modes that is Te and Tm I know this much only hope this helped u little bit atleast A: In principle waveguides act as the equivalent of wires for high frequency circuits. For such applications, it is desired to operate waveguides with only one mode propagating inside of the waveguide. With rectangular waveguides, it is possible to design the waveguide such that the frequency band over which only one mode propagates is as high as 2:1 (i.e. the ratio of the upper band edge to lower band edge is 2). With circular waveguides, the highest possible band width allowing only a single mode to propagate is only 1.3601:1. I found it on Wikileaks.
Why waveguides are used instead of antennas?
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.
Applications of a circular waveguides?
Circular waveguides are commonly used in various applications such as microwave communication systems, radar systems, and satellite communications. They are also used in medical imaging technologies like MRI machines and in industrial applications for non-destructive testing using electromagnetic waves. Circular waveguides are preferred over rectangular waveguides in high-frequency applications due to their ability to carry higher power levels with lower losses.
Brief explanation about the types of waveguides?
A waveguide is a structure which guides waves, such as electromagnetic waves or sound waves. There are different types of waveguide for each type of wave. The original and most common meaning is a hollow conductive metal pipe used to carry high frequency radio waves, particularly microwaves.Waveguides differ in their geometry which can confine energy in one dimension such as in slab waveguides or two dimensions as in fiber or channel waveguides. In addition, different waveguides are needed to guide different frequencies: an optical fiber guiding light (high frequency) will not guide microwaves (which have a much lower frequency). As a rule of thumb, the width of a waveguide needs to be of the same order of magnitude as the wavelength of the guided wave.
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.
Why are microwave signals used in wave guide channel justify?
Microwave signals are used in waveguide channels because they have a higher frequency compared to radio waves, allowing for greater data transfer rates. The structure of waveguides also helps to contain and guide the microwave signals efficiently, reducing signal loss and interference. This makes waveguides a preferred choice for high-frequency applications such as radar systems and telecommunication networks.
When is it advantageous to use a circular waveguide?
Circular waveguides are advantageous when working with high-frequency electromagnetic waves, such as in microwave and millimeter-wave applications. They are more efficient in guiding and transmitting these high-frequency signals due to lower losses and higher power-handling capabilities compared to other transmission mediums like coaxial cables. Additionally, circular waveguides are often used in radar systems and satellite communication due to their ability to pass through various bends and curves with minimal signal loss.
What are the types in waveguides?
3 types: 1.electromagentic waveguides 2.optical waveguides 3.acoustic waveguides
What is wr-821?
WR-821 is a type of waveguide used in microwave engineering, specifically designed for frequencies within the 18 to 26.5 GHz range. It is often used in applications such as radar, satellite communications, and other high-frequency transmission systems. The designation "WR" stands for "waveguide rectangular," and the number indicates its specific dimensions and frequency range. These waveguides facilitate the efficient transmission of microwave signals with minimal losses.
Why dipole antenna not used for high frequency?
Depends on what you mean by high frequency. The rabbit ears antenna used in broadcast TV is a dipole and is used for VHF.
Why high frequency is used in communication than low frequency?
High frequency is used because of the the size of antennas used to transmit and receive the communications signal. The higher the frequency the smaller the antenna.
What is a high end frequency scanner?
A: It is a terminology to imply that the scanner will be used at the hi end of frequency as opposed to low frequency
The frequency range 30MHz - 300MHz is?
The frequency range 30MHz - 300MHz is part of the VHF (Very High Frequency) spectrum. It is commonly used for applications such as FM radio broadcasting, air traffic control, and television broadcasting. It falls between the HF (High Frequency) and UHF (Ultra High Frequency) ranges.
