Microwave Solid State Devices – 1 – 2

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

ANSWER

EXPLANATION

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

ANSWER

EXPLANATION

8. Which one of the following diode is square low device ?

(a) Varactor diode
(b) Zener diode
(c) Tunnel diode
(d) 
Crystal diode

ANSWER

EXPLANATION

9. One of the following which diode is not used as a microwave mixer or detector ?

(a) PIN diode
(b) Crystal diode
(c) Schottky barrier diode
(d) 
Backward diode

ANSWER

EXPLANATION

10. One of the following microwave diode is suitable for very-low-power oscillator only :

(a) Tunnel
(b) Gunn
(c) IMPATT
(d) 
LSA

ANSWER

EXPLANATION

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