MICROWAVE & ENGINEERING
1. Electric energy,
Electric power Quantities has the
same dimension in both electro magnetic and electrostatic systems.
2. The
type of time variation implied with reference to the field quantities in Maxwell’s
equation is Both sinusoidal and
non-sinusoidal.
3. The
dominant mode in a wave guide is characterized by Longest cut off wavelength.
4. A
microwave junction is supposed to be matched at all ports if in the S matrix All the diagonal elements are zero.
5. Microwave
antenna aperture efficiency depends on Antenna
aperture.
6. The
semiconductor diode which can be used in switching circuits at microwave range is
PIN diode.
7. TM10 mode
of transmission will not be supported by a rectangular wave guide.
8. A
disadvantage of microsripes with respect to stripe line circuits is that the
former are more likely to radiate.
9. Short-term
fading in microwave communication links can be overcome by Disversity reception and transmission.
10. Folded dipole,
parabolic reflector, helical antennas are
frequency independent.
11. Gunn diode
is a transferred electron device.
12. A
wave guide section in a microwave circuit will act as a High pass filter.
13. “double-minimum” method is relevant to the
measurement of High VSWR.
14. Radiation
from a helical antenna is Circularly
polarised.
15. When
the phase velocity of an electromagnetic wave depends on frequency in any
medium the phenomenon is called Polarization.
16. HEMT
used in the microwave circuit Low
noise amplifier.
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