All 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!
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This quiz is based on the information presented in Chipless RFID Reader Architecture,
by Nemai Chandra Karmakar, Randika V. Koswatta, Prasanna Kalansuriya, and Rubayet E-Azim.
Graciously provided by
Artech House
1. What is a major advantage of chipless RFID over existing RFID?
a) Increased read range b) Lower cost c) Increased sensitivity
d) All the above
2. What is a name given to fully
printable, passive microwave and millimeter-wave chipless RFID tags?
a) PPMM arrays
b) Radar arrays c) Sonar arrays d) Inverse arrays
3. What is the assigned frequency (or band) on (within) which RFID systems
must operate?
a) 13.65 MHz b) UHF / VHF bands c) 2.4 GHz ISM band
d) There is no specific assigned frequency / band
4.
What type(s) of frequency domain based RFID tags are currently in use?
a) Chemical
tags b) Space-filling tags c) Dipole array tags d) All the above
5. What is the common name given to the device that performs
the interrogation of an RFID system?
a) A reader b) A broadcaster c)
A transponder d) A pinger
6. What is / are
the current limitation(s) of chipless RFID readers?
a) Reader cost b) Read
range c) Reading speed d) All the above
7.
What is a rectenna?
a) A back-end antenna b) A rectangular antenna for efficient
square wave reception c) A rectifying antenna that converts a microwave signal into DC
power d) No such thing
8.
What type of antenna is shown to the right?
a) Left-hand polarized b) Right-hand
polarized c) Circular log periodic d) Fractal
9.
What is the most basic antenna that can yield omnidirectional radiation patterns over a UWB (ultra
wide bandwidth) band?
a) Disk-loaded monopole b) Biconic c) Standard
feedhorn d) 1/2-wave dipole
10. How can smart
antenna technology mitigate the interference problem of RFID reading?
a) With artificial
intelligence (AI) b) With electronic beam steering c) With dumb tag exploitation
d) With ultra high power interrogation
Need some help? Click here for the
answers and explanations.
Posted September 25, 2013
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