Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Jennifer T. Bernhard"'
Autor:
Pallavi Sharma, Jennifer T. Bernhard
Publikováno v:
IEEE Access, Vol 10, Pp 7082-7097 (2022)
The analysis of Archimedean spiral slots using the theory of characteristic modes is presented in this article. Purely magnetic characteristic modes are used to study the behavior of a spiral slot etched in an infinite ground plane. The effect of the
Externí odkaz:
https://doaj.org/article/51e54a42a4304595b705fa2717d7c330
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:4100-4108
Secure antenna polarization modulation, or SAPM, is a method for increasing security at the physical layer via spatial signal distortion. We derive its expected performance in additive white Gaussian noise (AWGN) channels with the goals of establishi
Autor:
Pallavi Sharma, Jennifer T. Bernhard
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Autor:
Pallavi Sharma, Jennifer T. Bernhard
Publikováno v:
2022 16th European Conference on Antennas and Propagation (EuCAP).
Publikováno v:
IEEE Transactions on Antennas and Propagation. 67:2878-2885
A nearly hemispherical spiral or “hemispiral,” an antenna for global positioning system reception, is presented with design methodology and measurements. Its set of distinct radiation patterns allows receivers to estimate the angular direction of
Publikováno v:
2020 14th European Conference on Antennas and Propagation (EuCAP).
We investigate the impact of additive white Gaussian noise on the performance of secure antenna polarization modulation (SAPM), a technique for wireless physical layer security. The secrecy rate, calculated from the mutual information of intended ver
Autor:
Jennifer T. Bernhard
This lecture explores the emerging area of reconfigurable antennas from basic concepts that provide insight into fundamental design approaches to advanced techniques and examples that offer important new capabilities for next-generation applications.
Autor:
Jennifer T. Bernhard, Brian B. Gibbons
Publikováno v:
Microwave and Optical Technology Letters. 59:2190-2196
The theory of characteristic modes (TCM) for PEC bodies is showing great promise and application in the analysis, design, and placement of antennas. Its use for input impedance estimation, however, is still largely dependent on the idealized delta-ga
Autor:
Jennifer T. Bernhard, Kurt Schab
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 16:944-947
The von Neumann–Wigner theorem is used to demonstrate the general result that objects without inherent geometric symmetry will have entirely noncrossing characteristic mode eigenvalues. This suggests that objects of this kind can be analyzed withou
Publikováno v:
IET Microwaves, Antennas & Propagation. 11:433-441
Radio-frequency identification (RFID) systems with ‘peel-and-stick’ labels are currently limited to tracking items with nearly electromagnetically transparent material properties. This limitation stems from the antenna choice for these labels –