A low profile dual-polarized transmitarray antenna at Ka-band

Tuloti, Seyed Hashem Ramazannia; Mousavirazi, Zahra; Kesavan, Arun; Denidni, Tayeb A.

doi:10.1016/j.aeue.2021.154016

Cited by 4 publications

(1 citation statement)

References 20 publications

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“…[2]. Dual-polarization in TAs is typically achieved by applying multilayer frequency selective surfaces (M-FSS) [3], [4], [5], or the receive-transmit (R-T) scheme [6], [7].TAs can perform beam scanning using either electrical or mechanical control solutions. In the case of electrical control, RF components such as PIN diodes are added to each unit cell to achieve tunable transmission phases by controlling the DC bias [8], [9], [10], [11].…”

Section: Introductionmentioning

confidence: 99%

An Optimized Ka-Band Low Profile Dual-Polarized Transmitarray Antenna With 2D Beam Switching

Tuloti,

Lamecki,

Mrozowski

2024

IEEE Access

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This article presents an optimized dual-polarized transmitarray antenna (TA) designed for MIMO applications at the Ka-band, capable of switching beams in two directions. The antenna aperture uses a small unit cell with three layers of Taconic RF-35 dielectric substrates, which can be easily fabricated using PCB technology. The unit cell achieved a 360-degree phase shift and a transmission magnitude exceeding -0.4 dB at 28 GHz. We used nine dual-polarized patch antennas in a cross shape, each with a 10.5 dBi gain at 28 GHz, to switch the beams in two directions without changing the feed location. We optimized the phase distribution in the TA aperture and adjusted the feed antenna's F/D and tilt to achieve a high-gain antenna with low-gain roll-off during beam switching. The fabricated TA exhibited excellent agreement with the full-wave simulation results. It achieved ±15 degrees and ±30 degrees beam tilts in the x-and y-directions, with less than 0.8 dB gain roll-off for both polarizations.INDEX TERMS Transmitarray antennas, 2D beam switching, low profile, dual-polarized, gain roll-off

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Section: Introductionmentioning

confidence: 99%

An Optimized Ka-Band Low Profile Dual-Polarized Transmitarray Antenna With 2D Beam Switching

Tuloti,

Lamecki,

Mrozowski

2024

IEEE Access

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Analysis and design of ultra-wideband PRGW hybrid coupler using PEC/PMC waveguide model

Mousavirazi

Ali

Gheisanab

et al. 2022

Sci Rep

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In this paper, a new method to facilitate the design of Printed Ridge Gap Waveguide (PRGW) structures is introduced. One of the main difficulties in designing such structures is related to their simulation process which is really time and energy-consuming. Therefore, a suitable boundary condition is considered to bring about the primary structure without involving the bed of nails or mushroom unit cells. Using this technique, a wideband PRGW 3 dB hybrid double-box coupler is designed to serve in mm-wave frequencies at a center frequency of 30 GHz, which can be deployed for the next generation of mobile communication. The designed coupler provides a wide matching and isolation bandwidth with low output amplitude imbalance, which is unique in comparison with current couplers. The prototype of the proposed coupler is fabricated and measured where the simulation and measurement results show a good agreement indicating the strength of the proposed method in PRGW structure design as well. The measured results show the couplers achieve better than 10-dB return loss and isolation over the frequency range from 25 to 40 GHz (46% BW) with the power-split unbalance and phase error within ± 1 dB and ± 5°, respectively. In addition, square mushrooms are chosen here to satisfy the high impedance surface. Not only do they bring about larger stop bandwidth, but also their configuration facilitates the arrangement of them around the coupler. The proposed design has superb characteristics such as low profile, low loss, and easy integration with microwave circuits and systems that can be suitable for designing mm-wave beamforming networks.

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Phase Analysis for a Three-Layer Focusing Metasurface with Impedance Boundary Conditions

Zhang,

Geng,

Xiong

et al. 2024

2024 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS)

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A low profile dual-polarized transmitarray antenna at Ka-band

Cited by 4 publications

References 20 publications

An Optimized Ka-Band Low Profile Dual-Polarized Transmitarray Antenna With 2D Beam Switching

An Optimized Ka-Band Low Profile Dual-Polarized Transmitarray Antenna With 2D Beam Switching

Analysis and design of ultra-wideband PRGW hybrid coupler using PEC/PMC waveguide model

Phase Analysis for a Three-Layer Focusing Metasurface with Impedance Boundary Conditions

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