A Wideband Leaky-Wave Lens Antenna With Annular Corrugations in the Ground Plane

Article Engineering, Electrical & Electronic

On the Near-Field Spherical Wave Formation in Resonant Leaky-Wave Antennas: Application to Small Lens Design

Sjoerd Bosma et al.

Summary: In this work, the authors demonstrate that the near field of leaky-wave resonant antennas radiating into a dense medium can be accurately represented as a spherical wave in a certain solid angle around broadside. They also find that the shadow boundary angle can be used to define the phase center and geometry of a truncated lens that couples well to leaky-wave antennas. The proposed design and analysis methodology is validated through the evaluation of aperture efficiency and radiation patterns of small-to-medium sized lenses in reception.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2022)

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Editorial Material Engineering, Electrical & Electronic

A Fourier Optics Tool to Derive the Plane Wave Spectrum of Quasi-Optical Systems

Huasheng Zhang et al.

Summary: The tool provides a user-friendly interface for analyzing antenna-fed quasi-optical systems in reception, utilizing geometrical optics and Fourier optics principles. It allows for fast optimization of efficiency and performance of QO systems.

IEEE ANTENNAS AND PROPAGATION MAGAZINE (2021)

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Article Engineering, Electrical & Electronic

Wideband Multimode Leaky-Wave Feed for Scanning Lens-Phased Array at Submillimeter Wavelengths

Maria Alonso-delPino et al.

Summary: This study proposes a hybrid electromechanical scanning lens antenna array architecture for steering highly directive beams at submillimeter wavelengths, combining electronic phase shifting of a sparse array with mechanical translation of a lens array. Additionally, a novel leaky wave lens feed concept is implemented for achieving wide bandwidth and large steering angles in the antenna system.

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY (2021)

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Article Engineering, Electrical & Electronic

H-Band Quartz-Silicon Leaky-Wave Lens With Air-Bridge Interconnect to GaAs Front-End

Marta Arias Campo et al.

Summary: A new lens antenna in-package solution for the H-band is presented, featuring a wideband leaky-wave feed and air-bridge chip interconnect technology. This solution achieves high aperture efficiency and radiation efficiency.

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY (2021)

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Article Engineering, Electrical & Electronic

A Dual-Polarized 27 dBi Scanning Lens Phased Array Antenna for 5G Point-to-Point Communications

Huasheng Zhang et al.

Summary: This paper presents a dual-polarized 4x4 scanning phased array antenna operating at 28 GHz, which utilizes leaky-wave enhanced lenses to achieve high gain, wide bandwidth, and limited steering ranges for 5G communications. The design features a periodicity of two wavelengths and suppresses grating lobes with directive and steerable array element patterns.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION (2021)

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Article Engineering, Electrical & Electronic