All RF Cafe quizzes would make perfect 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.
Some of these books used in quizzes are available as prizes
in the monthly RF Cafe Giveaway.
Note: Many answers contain passages quoted in whole or in part from the text.
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
What is a major advantage of chipless RFID over existing RFID?
a) Increased read range
b) Lower cost
c) Increased sensitivity
d) All the above2.
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
What is the assigned frequency (or band) on (within) which RFID systems
a) 13.65 MHz
b) UHF / VHF bands
c) 2.4 GHz ISM band
d) There is no specific assigned frequency / band4.
What type(s) of frequency domain based RFID tags are currently in use?
b) Space-filling tags
c) Dipole array tags
d) All the above
What is the common name given to the device that performs
the interrogation of an RFID system?
a) A reader
b) A broadcaster
d) A pinger6.
What is / are
the current limitation(s) of chipless RFID readers?
a) Reader cost
c) Reading speed
d) All the above7.
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
d) No such thing
What type of antenna is shown to the right?
a) Left-hand polarized
c) Circular log periodic
What is the most basic antenna that can yield omnidirectional radiation patterns over a UWB (ultra
wide bandwidth) band?
a) Disk-loaded monopole
d) 1/2-wave dipole10.
How can smart
antenna technology mitigate the interference problem of RFID reading?
a) With artificial
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