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Leaky waves in a heteroepitaxial film
Journal of Applied Physics, 1973Theoretical as well as experimental investigations were carried out for the propagation of leaky waves along an important class of optical thin-film waveguides. For this type of guiding structure which may consist of heteroepitaxial deposition of ZnS or ZnSe on GaAs, the dielectric constant of the thin film is less than that of the substrate ...
D. B. Hall, C. Yeh
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Full wave analysis of leaky-wave antennas
2008 IEEE Antennas and Propagation Society International Symposium, 2008Leakage from slotted waveguides is a well-known phenomenon and has been thoroughly investigated during the past decades. The interest in leaky-wave antennas mainly stems from the possibility of scanning the beam with frequency [1]. The analysis of slotted waveguides has been first performed by means of a transverse network representation of the open ...
LUCIDO, Mario +3 more
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Graphene terahertz leaky-wave antennas
2019In this chapter, we focus on the recent developments made in the context of graphene THz antennas, especially those exploiting the graphene field effect to reconfigure their radiating features. To this purpose, we first review the electronic properties of graphene in the THz range from both a physical and an engineering perspective.
Fuscaldo W +3 more
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2018 Fifth International Conference on Millimeter-Wave and Terahertz Technologies (MMWaTT), 2018
Dirac leaky-wave antennas (DLWAs) are derived from photonic crystals exhibiting Dirac cone dispersion around their $\Gamma$-point. DLWAs provide high directive beams and continuous frequency beam scanning, non-fluctuating leakage constant and real non-zero Bloch impedance at and around broadside, due to the closed and linear Dirac dispersion relation ...
Sina Rezaee, Mohammad Memarian
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Dirac leaky-wave antennas (DLWAs) are derived from photonic crystals exhibiting Dirac cone dispersion around their $\Gamma$-point. DLWAs provide high directive beams and continuous frequency beam scanning, non-fluctuating leakage constant and real non-zero Bloch impedance at and around broadside, due to the closed and linear Dirac dispersion relation ...
Sina Rezaee, Mohammad Memarian
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Development of leaky-wave antennas
2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016This presentation overviews the development of leaky-wave antennas (LWAs) and the area of leaky waves, starting with the first LWA that was introduced and the early pioneering work of Marcuvitz and Oliner in explaining leaky-wave theory. The development leads up through the present time, where LWAs have seen a renewed interest in the context of ...
Jackson, David R. +4 more
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A Reconfigurable Leaky Wave Antenna
2023 33rd International Conference Radioelektronika (RADIOELEKTRONIKA), 2023Jan Machac +2 more
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2023 IEEE Research and Applications of Photonics in Defense Conference (RAPID), 2023
A. Overvig +4 more
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A. Overvig +4 more
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2014 44th European Microwave Conference, 2014
The substrate integrated waveguide can easily be integrated with planar microwave circuits. Antennas designed on this transmission line have a planar structure, and can be fabricated by a standard PCB technology, so they are suitable for mass production.
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The substrate integrated waveguide can easily be integrated with planar microwave circuits. Antennas designed on this transmission line have a planar structure, and can be fabricated by a standard PCB technology, so they are suitable for mass production.
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Reconfigurable leaky-wave antennas
2018In this chapter, an overview of the recent development of reconfigurable high-gain antennas is presented. These antennas range from reconfigurable Yagi antennas, reconfigurable reflectarrays and reconfigurable transmitarrays to reconfigurable PRS antennas.
Yingjie Jay Guo +2 more
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2013 IX Internatioal Conference on Antenna Theory and Techniques, 2013
A leaky-wave antenna array is one of the attractive candidates for high efficiency and low cost planar antennas in centimeter- and millimeter-wave applications such as automotive radars and radio communication devices. In this paper, a planar leaky-wave antenna array composed of a printed periodic metal strip grating on a grounded dielectric waveguide ...
D. N. Borisov +2 more
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A leaky-wave antenna array is one of the attractive candidates for high efficiency and low cost planar antennas in centimeter- and millimeter-wave applications such as automotive radars and radio communication devices. In this paper, a planar leaky-wave antenna array composed of a printed periodic metal strip grating on a grounded dielectric waveguide ...
D. N. Borisov +2 more
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