Oscillators operating at millimeter wavelength are difficult to realize and are also less efficient.

Related MCQs

• Quartz crystal and tourmaline used in oscillators work on the principle of:
• In microwave oscillators, negative resistance transistors and diodes are used in order to generate oscillations in the circuit.
• In transistor oscillators, FET and BJT are used. Instability is achieved by:
• In transistor oscillators, the requirement of a negative resistance device is satisfied using a varactor diode.
• The members of the antenna family which are made of wires of certain value in terms of operating wavelength are called:
• Reactive multipliers have a disadvantage that they cannot be used at very high frequencies and they become less efficient.
• If SWR=1.5 with a wavelength of 4 cm and the distance between load and first minima is 1.48cm, then the reflection coefficient is:
• Resistive multipliers are more efficient as compared to reactive multipliers.
• If the normalized load impedance of a transmission line is 2, then the reflection co- efficient is:
• An inductor is operating at frequency of 50 MHz. Its inductance is 0.1 µH, and then the series resistance associated with the inductor is: (Qo=100)