Assertion (A) : Smith chart is designed for λ/2length only.
Reason (R) : For every λ/2 length, the load impedance appears to be same as Zin.
Stub matching is used to match the load to characteristic impedance. Stub should be placed such that the admittance value at that point is
Stub matching is an effective technique in order to cancel out the reflectors when placed such that its reactive admittance value at the location of the stub is '0'. [Then it minimize losses]
Match the following
The characteristic impedance of a lossless transmission line at is _________________ (ohms)
Assertion (A) : Magnetic field is continuous and always rotational.
Reason (R) :
So assertion and reason both are correct and reason is the correct explanation for assertion.
An electric wave propagating through a lossless medium is given by :the phase constant β is given by
Assertion (A) : Polarization is always defined in terms of electric field orientation.
Reason (R) : Magnetic field is due to induced effect of electric field so we cannot measure it directly.
Assertion and reason are correct and reason is the correct explanation for assertion
Consider a wave which is having a phase velocity of 3x108m/s .Find the group ✓elocitv and the medium in which it is travelling
Phase difference between E and H in a high loss medium is _______________ (Degrees)
On the smith chart the location of the normalized load point is at 0.15λ, with reference to wavelength towards generator (WTG), scale operating wavelength is 4 cm. The location of first vmax from load is
Which of the following statements on a smith chart are correct?
1. Moving in clockwise direction is analogous to moving towards generator.
2. VSWR circles can be plotted on a smith chart.
3. Smith chart is the superposition of locus of VSWR and reflection coefficients.
4. To complete a distance of 0.75λ. it's enough to move 0.5λ. towards aenerator.
Smith chart is superposition of locus of resistance and reactance circles.
S-matrix for two port transmission line is given by . The reflection
coefficient and the transmission power through port 1 for input power of 5 mW is
Match the following
For a waveguide component whose VSWR is 1.4 when the component is terminated with a matched load. The power to the matched load is 25 mW for an input power of 100 mW. The same results are obtained when component is reversed, then the S-matrix is
The propagation constant of a transmission line with impedance and admittance of 9 and 16 respectively is
The propagation constant is given by γ = √(ZY), where Z is given by 9 and Y is 16. On substituting the given values, the propagation constant will be γ = √(ZY) = √(9 x 16) = 12 units.