ATT "ET" Block 1, Week 4
Which type of transmission line has the largest surface area given the same physical dimensions -
Answer-waveguide
What type of loss describes electromagnetic energy escaping the conductor - Answer-radiation
How is electromagnetic energy produced - Answer-current flowing through a conductor
A waveguide is defined as a system of material boundaries capable of guiding __________ - Answer-
electromagnetic energy
What is a disadvantage for waveguides - Answer-large size for low frequencies
Theoretically, a waveguide of a specific width has no - Answer-upper frequency limit
Which dimension determines the power handling capability of a waveguide - Answer-"b" - height
What is the point in a waveguide called where the metallic insulators become too large and eliminate
the bus bar - Answer-cutoff
In an E-type T-junction, if two out-of-phase signals are applied, the third arm will produce ___________ -
Answer-an output equipment to the summation of the two inputs
, In a waveguide, as frequency increases, the bus bar _____________ - Answer-increases in size
The balanced hybrid crystal (magic-T) is found at the input of the radar ___________ and is used as a
__________ - Answer-receiver, mixer
What is the physical handling and installation of waveguides called - Answer-plumbing
The resonant frequency of a shorted quarter wave transmission line is set by the ___________ - Answer-
location of the shorting bar
A waveguide can be changed into a cavity resonator by _________ - Answer-sealing the open ends of a
waveguide section
A cavity resonator is best described as connecting ________ - Answer-an infinite number of shorted
quarter-wave transmission lines
Cavity resonators are commonly constructed in a _______ shape - Answer-cylindrical
The power handling of a shorted transmission line is increased by __________ - Answer-placing two
shorted transmission lines together
The electron path from cathode to anode in a magnetron are curved by the - Answer-use of magnetic
field
What causes lead inductance in vacuum tubes - Answer-skin effect
What part of the klystron causes electrons to accelerate and decelerate - Answer-buncher grids and
cavity
Which type of transmission line has the largest surface area given the same physical dimensions -
Answer-waveguide
What type of loss describes electromagnetic energy escaping the conductor - Answer-radiation
How is electromagnetic energy produced - Answer-current flowing through a conductor
A waveguide is defined as a system of material boundaries capable of guiding __________ - Answer-
electromagnetic energy
What is a disadvantage for waveguides - Answer-large size for low frequencies
Theoretically, a waveguide of a specific width has no - Answer-upper frequency limit
Which dimension determines the power handling capability of a waveguide - Answer-"b" - height
What is the point in a waveguide called where the metallic insulators become too large and eliminate
the bus bar - Answer-cutoff
In an E-type T-junction, if two out-of-phase signals are applied, the third arm will produce ___________ -
Answer-an output equipment to the summation of the two inputs
, In a waveguide, as frequency increases, the bus bar _____________ - Answer-increases in size
The balanced hybrid crystal (magic-T) is found at the input of the radar ___________ and is used as a
__________ - Answer-receiver, mixer
What is the physical handling and installation of waveguides called - Answer-plumbing
The resonant frequency of a shorted quarter wave transmission line is set by the ___________ - Answer-
location of the shorting bar
A waveguide can be changed into a cavity resonator by _________ - Answer-sealing the open ends of a
waveguide section
A cavity resonator is best described as connecting ________ - Answer-an infinite number of shorted
quarter-wave transmission lines
Cavity resonators are commonly constructed in a _______ shape - Answer-cylindrical
The power handling of a shorted transmission line is increased by __________ - Answer-placing two
shorted transmission lines together
The electron path from cathode to anode in a magnetron are curved by the - Answer-use of magnetic
field
What causes lead inductance in vacuum tubes - Answer-skin effect
What part of the klystron causes electrons to accelerate and decelerate - Answer-buncher grids and
cavity
