Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Nathan Opalinski"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:97-110
We describe a new approach to transmitting broadband signals from electrically-small antennas (ESAs), with a focus on lower frequencies where ESA limitations are most pronounced. ESAs traditionally suffer from a stringent tradeoff between bandwidth a
Autor:
Mark Golkowski, Nathan Opalinski, Ronald A. L. Rorrer, Stephen D. Gedney, H. Y. Kim, James Bittle, Vijay Harid, S. K. Patch, Chad M. Renick, Morris B. Cohen
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 62:1225-1236
The ability of extremely and very low frequency (ELF/VLF, 0–30 kHz) radio waves to penetrate conductive media is well established. Magnetic field penetration into a thin but highly conductive box using an ELF/VLF loop antenna transmitter is investi
Autor:
Nathan Opalinski, Vijay Harid, Ronald A. L. Rorrer, Joshua Wewerka, Alexander Mroz, Mark Golkowski, Morris B. Cohen, Ho Y. Kim, Dalibor J. Todorovski
Publikováno v:
IEEE Access, Vol 8, Pp 79745-79753 (2020)
Imaging through conductive media is a pervasive problem in medical, industrial, and security applications. Several potential modalities such as X-ray, exotic particle beams, and related high resolution techniques have been employed in the past. Howev
Autor:
Nathan Opalinski, Roderick Gray, Mark Golkowski, Edward Slevin, Vijay Harid, Morris B. Cohen, S. K. Patch
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
Radio frequencies at or below the VLF range (3-30 kHz) are uniquely capable of penetrating highly conductive materials. This can be exploited to detect objects hidden within metal containers. In this paper, we present observations of VLF scattering i
Autor:
Stephen D. Gedney, Mark Golkowski, Ronald A. L. Rorrer, Morris B. Cohen, Nathan Opalinski, Vijay Harid, S. K. Patch
Publikováno v:
2019 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium).
The problem of magnetic field penetration into a conductive enclosure due to a low frequency loop transmitter is considered using simulations and experiment. The problem is relevant for electromagnetic shielding, through bunker communications, throug