Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Sean V. Hum"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract Electromagnetic linear-to-circular polarization converters with wide- and multi-band capabilities can simplify antenna systems where circular polarization is required. Multi-band solutions are attractive in satellite communication systems, w
Externí odkaz:
https://doaj.org/article/4d6f4511e5a34b1799e161c55552ef6e
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 798-811 (2022)
Electromagnetic metasurfaces have attracted significant interest recently due to their low profile and advantageous applications. Practically, many metasurface designs start with a set of constraints for the radiated far-field, such as main-beam dire
Externí odkaz:
https://doaj.org/article/b6eff0cb74984efa8ec45cf571111288
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:5105-5119
Electromagnetic metasurface design based on far-field constraints without the complete knowledge of the fields on both sides of the metasurface is typically a time consuming and iterative process, which relies heavily on heuristics and ad hoc methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10ad604894da8fb7e6399098969075f9
https://doi.org/10.1109/tap.2021.3137496
https://doi.org/10.1109/tap.2021.3137496
Autor:
Mahdi Behdani, Sean V. Hum
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930bca742722472c48acd84a11a10a8d
https://doi.org/10.23919/eucap57121.2023.10133461
https://doi.org/10.23919/eucap57121.2023.10133461
Publikováno v:
IEEE Transactions on Antennas and Propagation, 69(12)
This work presents the design and experimental validation of a dual-band fully reconfigurable circularly polarized (CP) reflectarray (RA) antenna for satellite communication applications in the Ku-band. The proposed structure operates with the downli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51fe2b83c0374a130182c25fbfcb7353
https://doi.org/10.1109/tap.2021.3090577
https://doi.org/10.1109/tap.2021.3090577
Autor:
Elham Baladi, Sean V. Hum
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:5691-5703
This work presents a fully analytical method for obtaining equivalent circuit models (ECMs) that predict the magnitude and phase of scattering parameters for reflectarray (RA) and/or metasurface (MTS) unit cells. The proposed ECM is derived from a Fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::667fd74ce8ec9b195b71e25928717f57
https://doi.org/10.1109/tap.2021.3069590
https://doi.org/10.1109/tap.2021.3069590
Autor:
Sean V. Hum, Zhengzheng Wang
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:5771-5780
A new model-based parameter estimation (MBPE) method for multilayer periodic EM surfaces is discussed in this article. By applying the proposed method to predict the generalized scattering matrix (GSM) of each unit layer section, the response of a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ddd332c6e680c64c45468b1ea6e0376
https://doi.org/10.1109/tap.2021.3060908
https://doi.org/10.1109/tap.2021.3060908
Autor:
Sean V. Hum, Parinaz Naseri
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:5725-5739
The synthesis of a metasurface exhibiting a specific set of desired scattering properties is a time-consuming and resource-demanding process, which conventionally relies on many cycles of full-wave simulations. It requires an experienced designer to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d32a58742bb870c0fa0e3395ea1955f2
https://doi.org/10.1109/tap.2021.3060142
https://doi.org/10.1109/tap.2021.3060142
Publikováno v:
IEEE Transactions on Antennas and Propagation. 69:4657-4669
An accurate equivalent circuit model (ECM) for general multiwire multiorder printed circuit board (PCB) metagratings (MGs) is developed. The effective impedances of the grating wires are modeled as lumped loads in the ECM. The numerous propagating Fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c8d657f1fef4eac7e63fa0724d5e9fb
https://doi.org/10.1109/tap.2021.3060084
https://doi.org/10.1109/tap.2021.3060084
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_________::d73e1d27a2653135d8af2fdc1f532520
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886712
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886712