High-gain and low-profile dielectric-image-line leaky-wave-antenna for wide-angle beam scanning at sub-THz frequencies

Torabi, Yalda; Dadashzadeh, Gholamreza; Lalbakhsh, Ali; Oraizi, Homayoon

doi:10.1016/j.optlastec.2022.107968

Cited by 16 publications

(12 citation statements)

References 31 publications

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“…To analyze antenna performance, we used CST Microwave Studio [10], which is based on the Finite Integral Technique. which allow us to design and simulate the numerical model of the proposed antenna.…”

Section: Simulated Results Analysismentioning

confidence: 99%

“…This paper describes a novel monopole optical antenna for THz applications. This antenna, which is based on quadratic Bezier outlines, has been simulated and optimized to provide the best superwideband performance (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16). In terms of impedance (with a fractional bandwidth greater than 135%), this antenna has a good peak gain of 10 dBi with a very good group delay of less than 0.4 ps (no pulse distortion) and doughnut-shaped (Omnidirectional) radiation patterns across all simulated bands.…”

Section: About Here] 4 Conclusionmentioning

confidence: 99%

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A Super-Wideband Antenna for THz wireless communication based on quadratic Bezier outline

Marouf

Ziani-Kerarti

2022

Preprint

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This paper describes a new super wide band monopoly antenna for THz applications.. It has a Super-Wideband performance (3-16 THz) and up which present a fractional bandwidth greater than 135%. it has 2:1 VSWR with 10 dBi peak realized gain and flat group delay. These results satisfy the frequency and time-domain characteristics of the antenna. The radiator and antenna ground plan is based on quadratic Bezier outlines, which can be optimized with few controls’ points. The proposed antenna is designed on Rogers RT5880 substrate (εr=2.2) with a very compact size (42×32×1.6 µm 3). Therefore, this antenna can be used in THz wireless communication systems. such as T-WPAN, T-WBAN and T-WLAN. It can be employed as an elementary antenna in MIMO systems.

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Section: Simulated Results Analysismentioning

confidence: 99%

Section: About Here] 4 Conclusionmentioning

confidence: 99%

A Super-Wideband Antenna for THz wireless communication based on quadratic Bezier outline

Marouf

Ziani-Kerarti

2022

Preprint

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“…Figs. [15][16][17][18][19] show that the recorded Doppler signal with the largest amplitude compared to the surrounding noise levels is recorded for measurements with higher angles for high-frequency signals. This is especially true for the tiny HR peak, which is more susceptible to noise trapping.…”

Section: Measurements Of Remote Vital Signals With Doppler Radar Resu...mentioning

confidence: 90%

“…In [16], an antenna array fed through a hole in the ground plane is presented as DIL, while in ( [17], [18]) a LWA based on an internal dielectric waveguide is proposed to operate in the frequency range of 50-85 GHz. DIL antennas are also available at the sub-THz frequency spectrum [19]. Since a DIL is a semiopen structure, power losses occur and the radiation can be controlled to meet the requirements of specific applications [18].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Leaky-Wave Antenna Based on Dielectric Image Line for Remote Vital Sign Detection at mm-Wave Frequencies

Mingle

Kampouridou

Feresidis

2022

IEEE Open J. Antennas Propag.

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A bidirectional leaky wave antenna (LWA) with beam scanning capabilities was developed based on the dielectric image line for single-tone continuous-wave Doppler radar (DR) for remote vital sign monitoring (RVSM) in a dynamic environment. It consists of a conductor-backed copper dielectric image line with two of the same dielectric layers mounted on top of each other for performance improvement. A RO6010 substrate with high permeability is used for the top two layers. The bottom layer is a RT/duroid 5880 low permittivity substrate stacked on top of the copper DIL to prevent higher order modes from being excited in the DIL channel. The dominant mode of the DIL is perturbed by making holes periodically in the DIL, and fast-wave space harmonics are generated. The scanning range of the proposed antenna through the broadside is 70.19 • (−42.49 • to 27.7 • ) with an impedance bandwidth of 15 GHz (50-65 GHz), an optimum gain in the fast wave area ranging from 15.5 dBi to 19.79 dBi and an efficiency of 83.8% at 57.5 GHz. Detailed RVSM tests have been performed with the proposed antenna system. It is shown that by adjusting the operating frequency from 50 GHz to 65 GHz, multiple targets' breathing rates (BR) and heart rates (HR) can be detected within 70 • of the angular range.INDEX TERMS Dielectric image line (DIL); doppler radar sensors; Frequency scanning; Leaky wave antenna; remote vital sign monitoring.

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“…Satellite orbit resources are increasingly depleted, and spectrum resource is getting tighter with the deployment of a large number of high, medium, and low orbit satellites around the world. In order to better use the limited resources to satisfy the needs of SOTM, the SOTM ground station antenna with lightweight, miniaturization, low-profile, high-gain, and beam scanning characteristics has gradually become the development trend of antenna technology [6].…”

Section: Introductionmentioning

confidence: 99%

A High-gain and Beam-scanning Variable Inclination Continuous Transverse Stub Array Antenna Based on Linear-gradient Stub at Ku Band

Liu¹,

Shen²,

Zheng³

et al. 2022

PIER M

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A novel Variable Inclination Continuous Transverse Stub (VICTS) antenna element and array model is proposed in this paper. The bandwidth and gain of the element are increased by adopting a linear-gradient stub, matching structure, and rectangular grating slow-wave structure (SWS). A circular array can be obtained by arranging antenna units of different lengths linearly. The array antenna uses a bow-parabolic box antenna as the line source generator (LSG) and utilizes a double-layer transition waveguide structure to realize the propagation of planar wave. Finally, a wide range of beam scanning in the elevation plane was achieved. The results of the simulation and antenna prototype test are in good agreement. Showing the impedance matching characteristics of the antenna unit and array meets the engineering requirements in the range of 12 ∼ 16 GHz. The maximum gain of the antenna array is 34.3 dBi, and the maximum 3 dB beamwidth is less than 10 • . It is confirmed that the designed antenna has the characteristics of high gain, narrow beam, and low profile, and realizes two-dimensional beam scanning in the range of 6 ∼ 79 • in the elevation plane, which meets the requirements of the Satellite Communications On-the-Move system (SOTM).

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High-gain and low-profile dielectric-image-line leaky-wave-antenna for wide-angle beam scanning at sub-THz frequencies

Cited by 16 publications

References 31 publications

A Super-Wideband Antenna for THz wireless communication based on quadratic Bezier outline

A Super-Wideband Antenna for THz wireless communication based on quadratic Bezier outline

Bidirectional Leaky-Wave Antenna Based on Dielectric Image Line for Remote Vital Sign Detection at mm-Wave Frequencies

A High-gain and Beam-scanning Variable Inclination Continuous Transverse Stub Array Antenna Based on Linear-gradient Stub at Ku Band

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