Microwave Solid State Devices » Exercise – 1
7. A Pin diode is :
(a) A metal, semi-conductor, point- contact diode
(b) A microwave mixer diode
(c) Often used as a microwave detector
(d) Suitable for use as a microwave switchSubject Name : Communication Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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- Microwave Solid State Devices » Exercise - 1 1. Which type of diodes does not ordinarily operate with reverse bias ? (a) varactor (b) IMPATT (c) snap-off (d) tunnel 2. Which diode is a popular microwave oscillator ? (a) gunn (b) varactor (c) hot carrier (d) IMPATT 3. ………….. is a popular microwave mixer diode. (a) gunn (b) varactor (c) hot carrier (d) IMPATT 4. Varactor and step-recovery diodes are widely used in what type of circuit ? (a) amplifier (b) oscillator (c) frequency multiplier (d) mixer 5. MASER finds application in : (a) Opto electronics (b) Fibre optics (c) Telephones (d) All of the above 6. The terms LASER is an abbreviation for : (a) Low amplification signal emitting radio-waves (b) Last aligned sound emitting radio-waves (c) Light amplification by stimulated emission of radiation (d) None of the above 7. A Pin diode is : (a) A metal, semi-conductor, point- contact diode (b) A microwave mixer diode (c) Often used as a microwave detector (d) Suitable for use as a microwave switch 8. Which one of the following diode is square low device ? (a) Varactor diode (b) Zener diode (c) Tunnel diode (d) Crystal diode 9. One of the following which diode is not used as a microwave…