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Analytical Study of Open-Stopband Suppression in Leaky-Wave Antennas
IEEE Antennas and Wireless Propagation Letters, 2020In the majority of leaky-wave antennas (LWAs), the lack of broadside radiation is due to the existence of an open-stopband (OSB) at broadside. In this letter, we present a study on the OSB suppression in LWAs.
Sina Rezaee, M. Memarian
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Magnetically Scannable Leaky Wave Antenna
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018This paper discusses the electronically scanning characteristics of a Leaky-Wave Antenna by means of controlling the real part of the leaky-mode complex longitudinal propagation constant at a fixed frequency. The structure is based on a standard rectangular waveguide section with a series of slots cut along its broad wall and loaded with a transversely-
S. A. Rotenberg +4 more
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European Conference on Antennas and Propagation, 2020
The synthesis of monopulse functions in the Fresnel region, using near-field focused leaky-wave antennas (LWA), is presented in this work. The focusing technique, combined with the frequency-scanning behavior of LWAs, allows for obtaining well-defined ...
M. Poveda-García +2 more
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The synthesis of monopulse functions in the Fresnel region, using near-field focused leaky-wave antennas (LWA), is presented in this work. The focusing technique, combined with the frequency-scanning behavior of LWAs, allows for obtaining well-defined ...
M. Poveda-García +2 more
semanticscholar +1 more source
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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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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Planar leaky-wave microstrip antenna
IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002In a single microstripline, the dominant mode is "quasi" TEM, which is a non-radiating surface mode. The higher-order modes, however, become leaky when the propagation constant is less than that of the free-space wave number, k/sub 0/. One of the simplest ways to realize a leaky-wave antenna is to use a regular microstripline properly excited by a ...
null Choon Sae Lee, V. Nalbandian
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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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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.
openaire +1 more source
IEEE Transactions on Antennas and Propagation, 2019
The synthesis of frequency-scanned monopulse radiation patterns using an array of two leaky-wave antennas (LWAs) is demonstrated. The LWA array must be designed with appropriate shifted frequency-dispersion responses to fulfill the desired monopulse ...
Miquel Poveda-García +2 more
semanticscholar +1 more source
The synthesis of frequency-scanned monopulse radiation patterns using an array of two leaky-wave antennas (LWAs) is demonstrated. The LWA array must be designed with appropriate shifted frequency-dispersion responses to fulfill the desired monopulse ...
Miquel Poveda-García +2 more
semanticscholar +1 more source