The dominant mode in cylindrical waveguide

The dominant mode in cylindrical waveguide
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The dominant mode in cylindrical waveguide TE11

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A rectangular waveguide is 5.1 cm by 2.4 cm (inside dimension). The cut off frequency of the dominant mode is

Description : A rectangular waveguide is 5.1 cm by 2.4 cm (inside dimension). The cut off frequency of the dominant mode is

Last Answer : A rectangular waveguide is 5.1 cm by 2.4 cm (inside dimension). The cut off frequency of the dominant mode is 2.94 GHz

Draw the field pattern of circular waveguide for its dominant mode.

Description : Draw the field pattern of circular waveguide for its dominant mode.

Last Answer : TE1,1 Mode is the dominant mode in circular waveguides. In TEm,n/ TMm,nthe letter m denotes the number of full-wave intensity variations around the circumference and n represents the number of half-wave ... changes radially out from the center to the wall. (Cylindrical co-ordinates are used).

A rectangular waveguide is 4.2 cm by 1.85 cm. The cut-off frequency of the dominant mode through this

Description : A rectangular waveguide is 4.2 cm by 1.85 cm. The cut-off frequency of the dominant mode through this waveguide is  (a) 3.57 GHz (b) 3.75 GHz (c) 3.70 MHz (d) 3.57 MHz

Last Answer : A rectangular waveguide is 4.2 cm by 1.85 cm. The cut-off frequency of the dominant mode through this waveguide is  3.57 GHz 

In a circular waveguide the dominant mode is:

Description : In a circular waveguide the dominant mode is:  (1) TE01 (2) TE11 (3) TE20 (4) TE21

Last Answer : . In a circular waveguide the dominant mode is: TE11.

The power of a wave in a cylindrical waveguide of radius 2m with electric field 12 units is a) 2.39 b) 3.92 c) 9.23 d) 9.32

Description : The power of a wave in a cylindrical waveguide of radius 2m with electric field 12 units is a) 2.39 b) 3.92 c) 9.23 d) 9.32

Last Answer : a) 2.39

Propagation mode of microwave in a waveguide is known as _______. A. TM B. TE C. SW D. TEM

Description : Propagation mode of microwave in a waveguide is known as _______. A. TM B. TE C. SW D. TEM

Last Answer : B. TE

The electric field is perpendicular to the "a" dimension of a waveguide in what mode?

Description : The electric field is perpendicular to the "a" dimension of a waveguide in what mode?

Last Answer : TE.

A single-mode cable does not suffer from: a. modal dispersion b. chromatic dispersion c. waveguide dispersion d. all of the above

Description : A single-mode cable does not suffer from: a. modal dispersion b. chromatic dispersion c. waveguide dispersion d. all of the above

Last Answer : a. modal dispersion

Describe rectangular waveguide in TE & TM mode.

Description : Describe rectangular waveguide in TE & TM mode.

Last Answer : i. Mode is defined as all possible configuration of electric and magnetic field which can exists in the waveguide. ii. Modes in rectangular waveguides are labeled TEm,nif they are transverse ... exist in rectangular waveguides. The formula for characteristic wave impedance for TM modes is,

What is considered the most efficient mode in terms of energy transfer in waveguides? A. Dominant mode B. Normal mode C. Conventional mode D. Vertical mode

Description : What is considered the most efficient mode in terms of energy transfer in waveguides? A. Dominant mode B. Normal mode C. Conventional mode D. Vertical mode

Last Answer : A. Dominant mode

A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters affected. Which of the following mode of inheritance do you suggest for this disease? (a) Sex-linked dominant (b) Sex-linked recessive (c) Sex-limited recessive (d) Autosomal dominant

Description : A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none ... ? (a) Sex-linked dominant (b) Sex-linked recessive (c) Sex-limited recessive (d) Autosomal dominant

Last Answer : (b) Sex-linked recessive

When a dominant mode wave guide not terminated in its characteristic impedance is excited with a 10 GHZ

Description : When a dominant mode wave guide not terminated in its characteristic impedance is excited with a 10 GHZ signal then if d is the distance between two successive minima of the standing wave in the guide then   (A) d = 1.5 cm (B) d is less then 1.5 cm (C) d is greater then 1.5 cm (D) d = 3 cm

Last Answer : When a dominant mode wave guide not terminated in its characteristic impedance is excited with a 10 GHZ signal then if d is the distance between two successive minima of the standing wave in the guide then d = 1.5 cm

What typesAdvances of circular waveguide?

Description : What typesAdvances of circular waveguide?

Last Answer : Need answer

A dielectric waveguide for the propagation of electromagnetic energy at light frequencies a. Stripline b. Microstrip c. Laser beam d. Fiber optics

Description : A dielectric waveguide for the propagation of electromagnetic energy at light frequencies a. Stripline b. Microstrip c. Laser beam d. Fiber optics

Last Answer : d. Fiber optics

Proposed the use of clad glass fiber as a dielectric waveguide a. Karpon and Keck b. Karpon and Bockham c. Bockham and Kao d. Kao and Keck

Description : Proposed the use of clad glass fiber as a dielectric waveguide a. Karpon and Keck b. Karpon and Bockham c. Bockham and Kao d. Kao and Keck

Last Answer : c. Bockham and Kao

Which of the following antennas is best excited from a waveguide? A. Biconical B. Horn C. Helical D. Discone

Description : Which of the following antennas is best excited from a waveguide? A. Biconical B. Horn C. Helical D. Discone

Last Answer : B. Horn

What device in a waveguide system used for stopping or diverting electromagnetic wave as desired? A. Mechanical switch B. Electric switch C. Push-button switch D. Waveguide switch

Description : What device in a waveguide system used for stopping or diverting electromagnetic wave as desired? A. Mechanical switch B. Electric switch C. Push-button switch D. Waveguide switch

Last Answer : D. Waveguide switch

A waveguide passive component that brings a smooth change in the direction of axis maintained perpendicular to the plane of polarization? A. L bend B. H bend C. T bend D. X bend

Description : A waveguide passive component that brings a smooth change in the direction of axis maintained perpendicular to the plane of polarization? A. L bend B. H bend C. T bend D. X bend

Last Answer : B. H bend

Which of the following is not a bounded medium? A. Coaxial line B. Two-wire line C. Waveguide D. Free space

Description : Which of the following is not a bounded medium? A. Coaxial line B. Two-wire line C. Waveguide D. Free space

Last Answer : D. Free space

Best reason for pressurizing waveguides with dry air A. To maintain propagation B. To maintain temperature of the waveguide C. To reduce the possibility of internal arcing D. To increase the speed of propagation

Description : Best reason for pressurizing waveguides with dry air A. To maintain propagation B. To maintain temperature of the waveguide C. To reduce the possibility of internal arcing D. To increase the speed of propagation

Last Answer : C. To reduce the possibility of internal arcing

The advantage of periscope antenna in microwave A. Minimize interference to and from other neighboring stations B. Shorten waveguide link C. Reduce tower height D. All of these

Description : The advantage of periscope antenna in microwave A. Minimize interference to and from other neighboring stations B. Shorten waveguide link C. Reduce tower height D. All of these

Last Answer : B. Shorten waveguide link

When electromagnetic wave are propagated through a waveguide, they A. are reflected from the walls but do not travel along them B. travel along all four walls of the waveguide C. travel along the broader walls of the guide D. travel through the dielectric without touching the walls

Description : When electromagnetic wave are propagated through a waveguide, they A. are reflected from the walls but do not travel along them B. travel along all four walls of the waveguide C. travel along the broader walls of the guide D. travel through the dielectric without touching the walls

Last Answer : A. are reflected from the walls but do not travel along them

Proposed the use of a clad glass fiber as a dielectric waveguide. A. Kao and Keck B. Karpon and Keck C. Karpon and Bockham D. Bockham and Kao

Description : Proposed the use of a clad glass fiber as a dielectric waveguide. A. Kao and Keck B. Karpon and Keck C. Karpon and Bockham D. Bockham and Kao

Last Answer : D. Bockham and Kao

An example for lossless propagation is a) Dielectric waveguide propagation b) Conductor propagation c) Cavity resonator propagation d) It is not possible

Description : An example for lossless propagation is a) Dielectric waveguide propagation b) Conductor propagation c) Cavity resonator propagation d) It is not possible

Last Answer : d) It is not possible

Choose which of following condition is not required for a waveguide to exist. a) The dimensions should be in accordance with desired frequency b) Cut-off frequency should be minimum 6GHz c) The shape should be spherical d) No specific condition is required for waveguide design

Description : Choose which of following condition is not required for a waveguide to exist. a) The dimensions should be in accordance with desired frequency b) Cut-off frequency should be minimum 6GHz c) The shape should be spherical d) No specific condition is required for waveguide design

Last Answer : c) The shape should be spherical

What is the most likely cause of losses in waveguide systems?

Description : What is the most likely cause of losses in waveguide systems?

Last Answer : Improperly connected joints or damaged inner surface.

What is the most common type of waveguide joint?

Description : What is the most common type of waveguide joint?

Last Answer : Choke joint.

A waveguide bend must have what minimum radius?

Description : A waveguide bend must have what minimum radius?

Last Answer : Greater than 2 wavelengths.

What is the result of an abrupt change in the size, shape, or dielectric of a waveguide?

Description : What is the result of an abrupt change in the size, shape, or dielectric of a waveguide?

Last Answer : Reflections.

When a waveguide is terminated in a resistive load, the load must be matched to what property of the waveguide?

Description : When a waveguide is terminated in a resistive load, the load must be matched to what property of the waveguide?

Last Answer : . Characteristic impedance.

What device is used to produce a gradual change in impedance at the end of a waveguide?

Description : What device is used to produce a gradual change in impedance at the end of a waveguide?

Last Answer : Horn.

What is the result of an impedance mismatch in a waveguide?

Description : What is the result of an impedance mismatch in a waveguide?

Last Answer : Standing waves that cause power losses, a reduction in power handling capability, and an increase in frequency and sensitivity.

Loose or inefficient coupling of energy into or out of a waveguide can be accomplished by the use of what method?

Description : Loose or inefficient coupling of energy into or out of a waveguide can be accomplished by the use of what method?

Last Answer : Slots and apertures.

What determines the frequency, bandwidth, and power handling capability of a waveguide probe?

Description : What determines the frequency, bandwidth, and power handling capability of a waveguide probe?

Last Answer : Size and shape

Which subscript, in circular waveguide classification, indicates the number of full-wave patterns around the circumference?

Description : Which subscript, in circular waveguide classification, indicates the number of full-wave patterns around the circumference?

Last Answer : First.

How is the cutoff wavelength of a circular waveguide figured?

Description : How is the cutoff wavelength of a circular waveguide figured?

Last Answer : 1.71 times the diameter.

What field configuration is easiest to produce in a given waveguide?

Description : What field configuration is easiest to produce in a given waveguide?

Last Answer : . Dominant mode

What term is used to identify the forward progress velocity of wavefronts in a waveguide?

Description : What term is used to identify the forward progress velocity of wavefronts in a waveguide?

Last Answer : Group velocity.

incidence and reflection that are perpendicular to the waveguide walls?

Description : incidence and reflection that are perpendicular to the waveguide walls?

Last Answer : Cutoff frequency.

Assuming the wall of a waveguide is perfectly flat, what is the angular relationship between the angle of incidence and the angle of reflection

Description : Assuming the wall of a waveguide is perfectly flat, what is the angular relationship between the angle of incidence and the angle of reflection

Last Answer : The angles are equal.

When a wavefront is radiated into a waveguide, what happens to the portions of the wavefront that do not satisfy the boundary conditions?

Description : When a wavefront is radiated into a waveguide, what happens to the portions of the wavefront that do not satisfy the boundary conditions?

Last Answer : Decrease to zero.

What interaction causes energy to travel down a waveguide?

Description : What interaction causes energy to travel down a waveguide?

Last Answer : The interaction of the electric and magnetic fields.

When the frequency is decreased so that two quarter wavelengths are longer than the "a" (wide) dimension of the waveguide, what will happen?

Description : When the frequency is decreased so that two quarter wavelengths are longer than the "a" (wide) dimension of the waveguide, what will happen?

Last Answer : Energy will no longer pass through the waveguide.

What happens to the bus bar dimensions of the waveguide when the frequency is increased?

Description : What happens to the bus bar dimensions of the waveguide when the frequency is increased?

Last Answer : The bus bar becomes wider.

The frequency range of a waveguide is determined by what dimensions?

Description : The frequency range of a waveguide is determined by what dimensions?

Last Answer : . The "a" dimension.

The large surface area of a waveguide greatly reduces what type of loss that is common in two-wire and coaxial lines?

Description : The large surface area of a waveguide greatly reduces what type of loss that is common in two-wire and coaxial lines?

Last Answer : Copper loss.

The folded waveguide in a bwo serves the same purpose as what component in a twt?

Description : The folded waveguide in a bwo serves the same purpose as what component in a twt?

Last Answer : Helix.

How does a waveguide-type lens focus spherical wavefront microwave energy?

Description : How does a waveguide-type lens focus spherical wavefront microwave energy?

Last Answer : Some wavefronts are accelerated so that all wavefronts exit the lens at the same time

Which dispersion mechanism (material or waveguide) is a function of the size of the fiber's core relative to the wavelength of operation?

Description : Which dispersion mechanism (material or waveguide) is a function of the size of the fiber's core relative to the wavelength of operation?

Last Answer : Waveguide dispersion.

A dielectric waveguide for the propagation of electromagnetic energy at light frequencies ∙ a. Stripline ∙ b. Microstrip ∙ c. Laser beam ∙ d. Fiber optics

Description : A dielectric waveguide for the propagation of electromagnetic energy at light frequencies ∙ a. Stripline ∙ b. Microstrip ∙ c. Laser beam ∙ d. Fiber optics

Last Answer : d. Fiber optics