Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Kurt Schab"'
Publikováno v:
IEEE Access, Vol 10, Pp 80989-80998 (2022)
High frequency (millimeter wave and higher) systems are being used for curb-to-home services and indoor networks with fixed transmitter and receivers. However, the environment between them can shift due to moving flora and fauna causing sudden blocka
Externí odkaz:
https://doaj.org/article/77199d4d00ac460f8936b37e93b8ba2e
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 1, Pp 41-46 (2020)
A novel scheme for transmitting broadband phase shift keyed signals from electrically small antennas using energy-synchronous direct antenna modulation is described. We outline fundamental operating principles of the method and experimentally compare
Externí odkaz:
https://doaj.org/article/280e26e4572944a3a867ca7afa72066a
Publikováno v:
IEEE Access, Vol 7, Pp 30213-30219 (2019)
Direct antenna modulation (DAM) methods using time-varying matching networks offer the possibility to reduce the detrimental effects on broadband signal transmission from a narrowband antenna. We propose time- and frequency-domain models for the effe
Externí odkaz:
https://doaj.org/article/cd4bf8c5f62e478990fd2b72703e8840
Autor:
Kurt Schab, Lukas Jelinek, Miloslav Capek, Casimir Ehrenborg, Doruk Tayli, Guy A. E. Vandenbosch, Mats Gustafsson
Publikováno v:
IEEE Access, Vol 6, Pp 10553-10568 (2018)
Though commonly used to calculate Q-factor and fractional bandwidth, the energy stored by radiating systems (antennas) is a subtle and challenging concept that has perplexed researchers for over half a century. Here, the obstacles in defining and cal
Externí odkaz:
https://doaj.org/article/7960472c510343ca972cdbeafb4a28fa
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:587-596
Internal oscillations in switched antenna transmitters cause undesirable fluctuations of the stored energy in the system, reducing the effectiveness of time-varying broadbanding methods, such as energy-synchronous direct antenna modulation. To mitiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caae38c7ce6324d7872fe9befa3e7774
https://doi.org/10.1109/tmtt.2021.3103209
https://doi.org/10.1109/tmtt.2021.3103209
Publikováno v:
New Journal of Physics, Vol 22, Iss 7, p 073013 (2020)
A general framework for determining fundamental bounds in nanophotonics is introduced in this paper. The theory is based on convex optimization of dual problems constructed from operators generated by electromagnetic integral equations. The optimized
Externí odkaz:
https://doaj.org/article/44cf87a6484d42b1b3dc888d2457e99c
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe85c8467e6a5cadc51e2b20703961c2
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886332
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886332
Autor:
K.C. Kerby-Patel, Kurt Schab
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::570518aa689481e65731f2d6eb8f0230
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9887059
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9887059
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fe3c05755f5b0bb5aa0bec2aebd82d8
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886301
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886301
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3877a1d962a866b957205cfb42a509e4
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886601
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886601