IndiaBIX

Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 5
21.
In which of the following devices can the operation be visualised in terms of a series feedback loops?
TWT
Reflex klystron
Klystron amplifier
Backward wave oscillator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The first and second subscripts in models of circular waveguides depict
the number of full sine wave variations in circumference in direction and Bessel function variations in radial direction respectively
the Bessel function variations in radial direction and the number of full sine wave variations in circumference direction respectively
the Bessel function variations in circumference direction and number of full sine wave variations in radial direction respectively
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
In which mode of circular waveguide does the attenuation continuously decrease as frequency is increased?
TE01
TE11
TE05
TE21
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
In which mode of rectangular waveguide are all field components zero?
TM00
TM11
TM01
TM10
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A microstrip line has dielectric having relative permittivity ∈r. The effective dielectric constant is
more than ∈r
equal to 1
less than ∈r
either a or b
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers