1. | In order to couple two generators to a waveguide system without coupling them to each other one, one could not use a ? | |
2. | Which one of the following can be used for amplification of microwave energy ? | |
3. | The TWT amplifier is sometimes preferred to the multicavity klystron amplifier because the former ? | |
4. | In travelling wave tube microwave amplifiers, the velocity modulation and bunching of electrons are achieved by the electromagnetic wave supported in the slow wave structure. Which one of the following field components is responsible for the above ? | |
5. | Microwave source used for a microwave oven is ? | |
6. | Cylindrical cavity resonators are not used with klystron because they have ? | |
7. | To avoid difficulties with strapping at high frequencies, what type of cavity structure is used in the magnetron ? | |
8. | In a VSWR measurement, a square law detector is used to detect the signal level. The voltmeter reads maximum and minimum as 64 mV and 16 mV respectively. The VSWR of the system will be ? | |
9. | The 'Double minimum or the "Width of minimum power" method is used in microwave measurements for the measurement of ? | |
10. | "Double-the-minimum" method is relevant to the measurement of ? | |