Title :
Lev Termen´s Great Seal bug analyzed
Author :
Brooker, Graham ; Gomez, Jose
Author_Institution :
Australian Centre for Field Robot., Univ. of Sydney, Sydney, NSW, Australia
Abstract :
The analysis presented in this article shows that the Great Seal bug has a well-coupled eigenmode around 1800 MHz, which is consistent with some of the references. This was probably one of the harmonics of the illumination source, as a high transmit power at the lower frequency would have been easier to generate. In addition, the interaction between acoustically introduced vibrations of the diaphragm would generate an AM signal that could be detected remotely.
Keywords :
acoustic devices; diaphragms; military communication; national security; radiofrequency identification; AM signal generation; Lev Termen great seal bug; acoustically introduced vibration; diaphragm vibration; illumination source harmonics; passive radio frequency identification; Antennas; Cavity resonators; Frequency modulation; Harmonic analysis; History; Military communication; RFID tags; Radiofrequency identification; Resonant frequency;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
DOI :
10.1109/MAES.2013.6678486
