Question is ⇒ A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z0 = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?, Options are ⇒ (A) Connecting an inductance at the end, (B) Connecting a short circuited stub at the load, (C) Connecting a capacitance at some distance from the load, (D) Connecting a short circuited stub at some specified distance from the load, (E) , Leave your comments or Download question paper.

Question is ⇒ A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z0 = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?, Options are ⇒ (A) Connecting an inductance at the end, (B) Connecting a short circuited stub at the load, (C) Connecting a capacitance at some distance from the load, (D) Connecting a short circuited stub at some specified distance from the load, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z₀ = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?
A.	Connecting an inductance at the end [Wrong Answer]
B.	Connecting a short circuited stub at the load [Wrong Answer]
C.	Connecting a capacitance at some distance from the load [Wrong Answer]
D.	Connecting a short circuited stub at some specified distance from the load [Correct Answer]
View Answer 1 -2 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ In a radio detector
stabilization against signal strength variation is provided
linearity is worse than in a phase discriminator
the circuit is the same as in discriminator except that diodes are reversed
output is twice that obtainable from a similar phase discriminator

⇒ Two coils having self inductances of 10 mH and 40 mH are mutually coupled. The maximum possible mutual inductance is
40 mH
20 mH
10 mH
5 mH

⇒ A carrier is modulated by two modulating waves A and B having modulation indices of 0.6 and 0.8 respectively. The overall modulation index is
1
0.7
0.2
1.4

⇒ The core of a coil has a length of 10 cm. The self inductance is 8 mH. If the core length is doubled, all other quantities remaining the same, the self inductance will be
32 mH
16 mH
8 mH
4 mH

⇒ Higher value of ripple factor indicates
poor rectification
ideal rectification
r.m.s. value to peak value
none of the above

⇒ The h parameter equivalent to ac resistance r_e is
h_ib
h_fe
h_ob
h_rb

⇒

Assertion (A): 1C 74181 is an ALU in TTL 7400 series.

Reason (R): 1C 74181 can accept two 4 bit words and can perform any one of possible 16 arithmetic or logic operations.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct R is wrong
A is wrong R is correct

⇒ In the saturation region of CE output characteristics of n-p-n transistor, V_CE is about
0.5 V
15 V
- 0.5 V
- 15 V

⇒ At room temperature the number of conducting electrons in an intrinsic semiconductor
is almost equal to the number of valence electrons
is about half the number of valence electrons
is small as compared to the number of valence electrons
is a very small fraction of the number of valence electrons

⇒ The minimum sampling frequency in sample/sec. required to reconstruct the following signal from its samples wuthout distor
2 x 10³
4 x 10³
6 x 10³
8 x 10³

⇒ An accelerometer has a seismic mass of 0.05 kg and spring constant of 3 x 10⁵ N/m. If maximum displacement of mass is ± 1 mm, the maximum acceleration which can be measured is
30 m/s²
60 m/s²
90 m/s²
120 m/s²

⇒ The low pass filter characteristic shown in figure realiza
TRUE
FALSE

⇒ The permanent magnet field system of brushless dc servo- motor is generally on
stator
rotor
partly on stator and partly on rotor
either (a) or (b)

⇒ Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because
it is bigger in size
it has higher level of illumination
the tube has to illuminate three phosphors simultaneously
the tube has lower efficiency because of aperture mask

⇒ Bandwidth will be
a.b
a + b
a
b

⇒ The gain of collinear arrays is maximum when the spacing between the elements is
0.1 λ to 0.3 λ
0.3 λ to 0.9 λ
0.5 λ to 0.7 λ
0.7 λ to 0.9 λ

⇒ Find the odd one out
sweep voltage generator
multivibrators
sine wave oscillators
blocking oscillators

⇒

Assertion (A): The gate current of an SCR is always in the form of pulses.

Reason (R): The gate losses, in pulse triggering, are low.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ For an unstable system the gain margin is indicative of how much the gain should be decreased to make the system stable.
TRUE
FALSE

⇒ Without a spectrum analyser, it is not possible to determine
carrier frequency
antenna pattern
pulse width
spurious signal strength and its location

⇒ Which statement is incorrect for parallel resonance?
P.f. is 1
Y is minimum
B is zero
Z is minimum

⇒

Assertion (A): Each memory chip has its own address latch.

Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct R is wrong
A is wrong R is correct

⇒ The function Z(s) has a pole at infinity if
the degree of numerator and denominator of Z(s) are equal
the numerator of Z(s) is one degree higher than denominator
the denominator of Z(s) is one degree higher than numerator
the degree of numerator and denominator are either equal or differ by one

⇒ In the circuit of fi
V_a would always lag V_b
V_a would always lead V_b
V_a and V_b would always be in phase
V_a may lag or lead V_b

⇒ I-PD controlled system has
I, P and D actions in forward path
I, P and D actions in feedback path
I action in forward path but P and D action in feedback path
I action in feedback path but P and D actioins in forward path

⇒ If a dipole is meant for a frequency of 1 MHz, the length of each rod is about
5 m
20 m
100 m
50 m

⇒ The system of the given fi
has two poles and one zero in left half plane
has two poles and one zero in right half plane
has two poles in left half plane and zero in right half plane
none of the above

⇒ A TEM wave is incident normally on a perfect conductor. The E and H fields at boundary will respectively be
minimum and maximum
minimum and minimum
maximum and minimum
maximum and maximum

⇒ The parity bit is
always 1
always 0
1 or 0
none of the above

⇒ Impedance level of Impatt diodes is generally lower than that of Gunn diodes
TRUE
FALSE