Performance of which one of the following diodes is not based on its negative resistance:
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ECE · all questionsMicrowave Communication
Microwave Communication
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Magic Tee is a combination of
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A wave in which neither the electric nor the magnetic component is in the direction of propagation, is known as
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In gunn diode, GaAs is preferred to Si because it has
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The degenerate modes in a waveguide are characterized by
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In rotary phase shifter, rotable section plate is
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Which of the following is a "hot carrier diode"?
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A reflex klystron oscillator is a
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In metal semiconductor contacts, the Schottky effect is the image force induced lowering of the potential energy for charge carrier emission when an electric field is applied. This image force is:
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The requirement for reliability, long stability, high efficiency and suitability for space environment are met by the use of
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For which of the following purpose the cavity magnetron uses strapping
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A rectangular wave guide measure 3 × 4.5 cm internally and has a 9 GHz signal propagated in it. The cutoff wavelength for TE10 mode is
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3 port Circulator is
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The major difference between current probe and voltage probe is that current probe
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Regarding PIN diode which of the following statements is correct?
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Which device can detect the presence of both forward and backward waves in a waveguide?
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To avoid difficulties with strapping at high frequencies, what type of cavity structure is used in magnetron?
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A standard air filled waveguide WR-187 has inside all dimensions of a = 4.755 cm and b = 2.215 cm. At 12 GHz it will support
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In microwave system, waveguides have the advantages of
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Q100
Open questionWhich of the following is the most serious drawback of IMPATT diode?
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