Millimeter-wave Gaussian-beam antenna and integration with planar circuits

Matsui, Toshiaki; Kiyokawa, M.; Hirose, Nobuyoshi

doi:10.1109/mwsym.1996.508538

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…This is in contrast to the proposed antenna where the feed is a simple lossless coaxial probe placed at the center of a radial cavity. A planar antenna has also been reported in [39] that generates a linearly polarized Gaussian beam. The antenna uses planar and spherical mirrors to transform a guided-mode to a resonator mode that has a Gaussian shape.…”

Section: Radial Gaussian Beam Antennamentioning

confidence: 99%

Antenna Aperture Synthesis Using Mode-Converting Metasurfaces

Alsolamy

Grbic

2021

IEEE Open J. Antennas Propag.

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Mode-converting metasurfaces are passive, lossless devices that can be designed to transform a set of incident modes to a desired set of transmitted modes. In this paper, mode-converting metasurfaces are utilized to synthesize arbitrary, azimuthally-invariant TM apertures. The methods presented in this work can be used to design antennas that can meet specific near-field and far-field criteria unlike most metasurfaces which solely manipulate the far field. The proposed antennas consist of a coaxially-excited, radial cavity topped by the mode-converting metasurface. The main role of the mode-converting metasurface is to establish the desired aperture by converting the modal distribution of the excitation to that of desired aperture. Its secondary role is to impedance match the coaxial feed to the radial cavity. Using modal network theory, an optimization-based design procedure is developed to synthesize the proposed metasurface antennas. The admittance profiles of the electric sheets that comprise the metasurface are optimized to establish the desired aperture profile. To illustrate the design procedure, a radial Gaussian beam antenna is synthesized at 10 GHz and its performance is verified using a full wave electromagnetic solver. The proposed antenna has a height and weight advantage over Gaussian beam horn antennas.

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Section: Radial Gaussian Beam Antennamentioning

confidence: 99%

Antenna Aperture Synthesis Using Mode-Converting Metasurfaces

Alsolamy

Grbic

2021

IEEE Open J. Antennas Propag.

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“…To avoid large attenuation in feed circuits in millimeter-wave bands, various types of antennas have been investigated and developed. Examples are a circularly polarized omnidirectional cylindrical slot-array antenna for base stations, and a dielectric loaded Gaussian beam antenna integrated with MMICs [28].…”

Section: Devicesmentioning

confidence: 99%

The future generations of mobile communications based on broadband access technologies

2000

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The forthcoming mobile communication systems are expected to provide a wide variety of services, from high-quality voice to high-definition videos, through high-data-rate wireless channels anywhere in the world. The high data rate requires broad frequency bands, and sufficient broadband can be achieved in higher frequency bands such as microwave, Ka-band, and millimeter-wave. Broadband wireless channels have to be connected to broadband fixed networks such as the Internet and local area networks. The futuregeneration systems will include not only cellular phones, but also many new types of communication systems such as broadband wireless access systems, millimeter-wave LANs, intelligent transport systems, and high altitude stratospheric platform station systems. Key to the future generations of mobile communications are multimedia communications, wireless access to broad-band fixed networks, and seamless roaming among different systems. This article discusses future-generation mobile communication systems.

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“…Among the wide variety of geometries of periodic patterns, metal meshes with square apertures can be used as coupling mirrors in open resonators [6,7] or in Gaussian beam antennas (GBAs) [8,9]. GBAs have been developed for user terminals of WLANs at 60 GHz; they comprise a plano-convex half-wavelength Fabry-Perot (FP) cavity excited, in the near-field region, by a multilayer planar antenna.…”

Section: Introductionmentioning

confidence: 99%