Frenzel Self-test in Microwave Techniques – Answers

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(Last Updated On: February 9, 2020)

Answers for Frenzel Self-test in Microwave Techniques

Below are the answers key for Frenzel Self-test in Chapter 10: Microwave Techniques from the book COMMUNICATIONS ELECTRONICS by Louis E. Frenzel. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

1. 1

2. bandwidth or spectrum

3. more difficult to analyze; different measurement techniques; resistors, capacitors, and inductors act

like LCR circuits; conventional semiconductors do not work owing to internal capacitances and long

transit time; special, expensive vacuum tubes are used for power amplification; line-of-sight

transmission differences; excessive signal reflection and absorption

4. telephone, radar

5. television signal relay, space communications, radio telescopes, microwave heating

6. Federal Communications Commission

7. improved receiver selectivity, SSB, multiplexing, reduced FM deviation

8. internal capacitance, long transit time

9. LCR

10. 36, 3.6

11. true

12. attenuation

13. 6

14. waveguide

15. microstrip, stripline

16. probe, loop

17. high-pass

18. 4.921

19. (a) true, (b) false

20. H, E


22. transverse magnetic

23. cavity resonator

24. parallel resonant

25. tuned circuits, filters

26. resonant frequency

27. high capacitance, high inductance, long transit time

28. P-type silicon, tungsten whisker

29. Schottky barrier, or hot carrier

30. mixer

31. varactor

32. varactor, snap-off or step-recovery diode

33. Gunn

34. IMPATT, TRAPATT, tunnel

35. negative resistance

36. reverse

37. forward

38. true

39. false

40. amplifier

41. cavity resonators

42. velocity

43. buncher, catcher

44. reflex

45. Gunn diodes, TWTs

46. permanent magnet

47. radar, microwave ovens

48. amplifier

49. helix

50. bandwidth

51. horn

52. increase, decrease

53. 11.8

54. 10, 60

55. 37.5, 13.3

56. wide

57. parabola

58. focal point

59. horn

60. 55.39, 0.242

61. increase, decrease

62. Cassegrain

63. simplicity, low cost

64. 12, 20

65. 12, 45

66. circularly

67. right-hand circular polarization

68. bicone

69. true

70. false

Complete List of Self-test and Reviewers in Communications Electronics

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