This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “System Aspects of Antennas”. 1. If an antenna has a directivity of 16 and radiation efficiency of 0.9, then the gain of the antenna is: a) 16.2 b) 14.8 c) 12.5 d) 19.3 2. Gain of an antenna is always greater than … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Transistor Multipliers”. 1. Transistor multipliers are more efficient compared to diode multipliers from all operational aspects. a) True b) False 2. A major characteristic property required by frequency multipliers for frequency multiplication to happen is: a) High gain b) High conversion efficiency … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Frequency Multipliers”. 1. Oscillators operating at millimeter wavelength are difficult to realize and are also less efficient. a) true b) false 2. __________ is an example for a frequency multiplier. a) resistor b) inductor c) capacitor d) transistor 3. The major drawback … Read more
This set of Microwave Engineering online quiz focuses on “Oscillator Phase Noise”. 1. A practical oscillator has a frequency spectrum consisting of a single delta function at its operating frequency. a) True b) False 2. ____________ due to random fluctuations caused by thermal and other noise sources appear as broad continuous distribution localized about the … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Dielectric Resonator Oscillators”. 1. The stability of an oscillator is enhanced with the use of: a) high Q tuning network b) passive elements c) appropriate feedback methods d) none of the mentioned 2. In oscillator tuning circuits, dielectric resonators are preferred over … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Microwave Oscillators”. 1. In microwave oscillators, negative resistance transistors and diodes are used in order to generate oscillations in the circuit. a) True b) False 2. Any device with negative impedance as its characteristic property can be called: a) Energy source b) … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Crystal Oscillators”. 1. One condition to be satisfied in an oscillator circuit so that stable oscillations are produced is: a) positive feedback is to be achieved b) negative feedback is to be achieved c) 1800 phase shift is required between the transistor … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “RF Oscillators”. 1. _________ is a non linear circuit that converts DC power to an AC waveform of desired frequency based on the oscillator design. a) Attenuator b) Amplifier c) Oscillator d) None of the mentioned 2. The transfer function of an … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Power Amplifiers”. 1. _______________ are used in the final stages of radar and radio transmitters to increase the radiated power level. a) Power amplifiers b) Oscillators c) Transistors d) Attenuators 2. Important factors to be considered for power amplifier design are: a) … Read more
This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Broadband Transistor Amplifier Design”. 1. High gain is not achievable at microwave frequencies using BJT amplifiers because: a) device construction b) complex architecture c) ports are not matched at high frequencies d) none of the mentioned 2. To flatten the gain response … Read more
