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Introduction to RF Design Using EM Simulators
RF Cafe Quiz #41

RF Engineering Quizzes - RF CafeAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

RF Cafe Featured Book - Introduction to RF Design Using EM Simulators, by James C. RautioThis quiz is based on the information presented in Introduction to RF Design Using EM Simulators, by James C. Rautio, published by Artech House. Note: Some of these books are available as prizes in the monthly RF Cafe Giveaway.

1.  What is an electric field?

a)  A plasmatic cluster of electrons

b)  The perpendicular component of a gravitational field

c)  An emotion-charged sports arena

d)  The potential gradient in space caused by voltage on a conductor

2.  Where is current flow strongest on a microstrip line?

a)  Along the edges

b)  In the center

c)  Evenly distributed

d)  No current flows in a microstrip line

3.  What is a meander line?

a)  A transmission line that wraps randomly around the substrate

b)  A reception line that wraps randomly around the substrate

c)  A transmission line that snakes back and forth along its length

d)  A transmission line layout named after Julius Meander

4.  Although microstrip lines are modeled as equivalent lumped element circuits, they are actually:

a)  Many lumped elements

b)  Distributed elements

c)  Mechanical elements

d)  Magnetic elements

5.  Why are microstrip line corners mitered in a bend?

a)  To reduce signal reflections

b)  To save metal

c)  To reduce substrate weight

d)  To allow denser packing of circuits

6.  How can crosstalk between metal lines be reduced?

a)  Reduce the signal strength if possible

b)  Use a vertical isolation wall between the lines

c)  Use more separation between lines

d)  All the above

7.  How does current in the ground plane flow relative to the microstrip line above it?

a)  No current flows in the ground plane

b)  Perpendicular to the microstrip line

c)  Vertically

d)  Like a mirror image

8.  What is a main motivation for using a differential pair transmission line?

a)  Crosstalk reduction

b)  High current handling

c)  Higher voltage handling

d)  Space savings

9.  Which waveguide mode has the magnetic field component pointing in the direction of the electromagnetic (EM) wave travel?

a)  Transverse Electromagnetic (TEM) mode

b)  Transverse Magnetic (TM) mode

c)  Transverse Electric (TE) mode

d)  Obverse Magnetic (OE) mode

10.  What is the main limit of a simulator's accuracy?

a)  Computer power

b)  Digitization increment size

c)  Number of circuits

d)  Display resolution

Need some help? Click here for the answers and explanations.

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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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