Metasurfaces: From microwaves to visible
We review the basic physics and applications of a special class of planar metamaterials,
often called metasurfaces, which are composed of optically thin and densely packed planar …
often called metasurfaces, which are composed of optically thin and densely packed planar …
UHF electrically small box cage loop antenna with an embedded non-Foster load
J Church, JCS Chieh, L Xu… - IEEE Antennas and …, 2014 - ieeexplore.ieee.org
Traditional impedance-matching methods typically employ matching networks at the
antenna input terminals. Alternatively, the antenna may be embedded with a non-Foster …
antenna input terminals. Alternatively, the antenna may be embedded with a non-Foster …
[图书][B] Non-Foster circuits for high performance antennas: advantages and practical limitations
MM Jacob - 2016 - search.proquest.com
The demand for miniaturized, broadband communication systems has created a need for
electrically small, broadband antennas. However, all passive electrically small antennas …
electrically small, broadband antennas. However, all passive electrically small antennas …
Broadband non-Foster matching of an electrically small loop antenna
Electrically small antennas have a theoretical limit to the maximum bandwidth-efficiency
product that can be achieved, as derived by Wheeler and Chu. This can be overcome using …
product that can be achieved, as derived by Wheeler and Chu. This can be overcome using …
A low frequency ultra-wideband electrically small monopole antenna for HF/VHF application
In this paper, a low frequency ultra-wideband electrically small monopole antenna (ESMA)
with a nonfoster circuit (NFC) loading for HF/VHF application is proposed. The devised …
with a nonfoster circuit (NFC) loading for HF/VHF application is proposed. The devised …
Parametric optimization of a non-foster circuit embedded in an electrically small antenna for wideband and efficient performance
H Jaafar, D Lemur, S Collardey… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, we present the design of a small, wideband antenna with an embedded non-
Foster circuit. The design procedure is based on modeling the antenna in the presence of …
Foster circuit. The design procedure is based on modeling the antenna in the presence of …
Antenna bandwidth broadening with a negative impedance converter
OO Tade, P Gardner, PS Hall - International Journal of Microwave …, 2013 - cambridge.org
Cognitive radio (CR) has generated a lot of interest because of the promise of wide
instantaneous bandwidths which will improve data rates. Current social trends suggest that …
instantaneous bandwidths which will improve data rates. Current social trends suggest that …
Non-Foster circuitry design for antennas
S Koulouridis - Proceedings of the 5th European Conference …, 2011 - ieeexplore.ieee.org
A novel technique is introduced to optimize the use of negative networks in antennas. It is
shown that by adding ports inside the antenna structure and appropriately applying very few …
shown that by adding ports inside the antenna structure and appropriately applying very few …
Electrically small broadband VHF/UHF planar antenna matched using a non‐foster circuit
ABSTRACT A broadband non‐Foster matched Planar Inverted‐F Antenna is proposed for
100–500 MHz VHF/UHF handheld terminal applications. The proposed design shows that in …
100–500 MHz VHF/UHF handheld terminal applications. The proposed design shows that in …
Conformal load-bearing antenna structure for MIMO applications
DL Zeppettella, M Ali - The Applied Computational …, 2018 - journals.riverpublishers.com
A broadband, airfoil-integrated, VHF antenna is introduced for conformal load-bearing
structures (CLAS) applications. A two-layer antenna is developed and the effects of …
structures (CLAS) applications. A two-layer antenna is developed and the effects of …