Off-axis properties of silicon and quartz dielectric lens antennas

Filipović, Dejan S.; Gauthier, G.; Raman, Sanjay; Rebeiz, Gabriel M.

doi:10.1109/8.575618

Cited by 208 publications

(135 citation statements)

References 8 publications

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“…3. Typically with ILA the reflection loss increase as a function of the feed offset [4,6,7,12]. The reflection loss in Fig.…”

Section: Ila For Beam Steeringmentioning

confidence: 99%

“…In conventional elliptical ILAs, the lens radius R is the same as the semiminor axis of the ellipse. The simulation method used in this study is a commonly used ray-tracing simulation, as e.g., in [7]. The first step is to trace the rays from the feed to the lens surface and to calculate the field outside the lens.…”

Section: Ila For Beam Steeringmentioning

confidence: 99%

“…The conventional types of ILAs are the extended hemispherical [3][4][5][6][7][8] and the elliptical lenses [4,[8][9][10][11][12][13]. Diffraction-limited patterns are attained with an elliptical lens that has an eccentricity of e = (ε r ) −1/2 , and extension length L = e · a, where ε r is the relative permittivity of the lens material and a the semimajor axis of the ellipse.…”

Section: Introductionmentioning

confidence: 99%

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Reduction of Internal Reflections in Integrated Lens Antennas for Beam-Steering

Karttunen

Ala‐Laurinaho²,

Sauleau

et al. 2013

PIER

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Abstract-The conventional integrated lens antennas (ILAs) for beam steering suffer from internal reflections that deteriorate the scanning properties. The internal reflections are known to affect side lobes, cross-polarisation level, input impedance of the feed, and mutual coupling. In this paper, ILAs are designed to exhibit very low reflection loss, i.e., to minimize the internal reflections. Wide ranges of realistic relative permittivities of the lens and of the feed element directivities are considered. It is shown that with any permittivity and with any feed directivity it is possible to design the lens shape in such a way that the reflection loss is low, for moderate beam-steering angles, without resorting to a complicated matching layer. The gain, directivity, beam-width, and the resulting distance between the feed elements are compared for all the designed lenses.

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“…3. Typically with ILA the reflection loss increase as a function of the feed offset [4,6,7,12]. The reflection loss in Fig.…”

Section: Ila For Beam Steeringmentioning

confidence: 99%

Section: Ila For Beam Steeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reduction of Internal Reflections in Integrated Lens Antennas for Beam-Steering

Karttunen

Ala‐Laurinaho²,

Sauleau

et al. 2013

PIER

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“…A number of groups have reported the development of the Si-lens antenna [14,8,15,16]. Therefore, a reliable method to precisely evaluate power flow density distribution in the Si-lens antenna irradiated with linearly polarized THz wave radiation is important to design THz systems.…”

Section: Introductionmentioning

confidence: 99%

“…Ray-tracing method based on the geometrical optics theory is used to analyze beams of terahertz radiation in a quasi-optical system through a number density of rays [14]. In optics, ray-tracing is widely used to design lenses and to analyze the optical system.…”

Section: Introductionmentioning

confidence: 99%

A New Method for Simulating Power Flow Density Focused by a Silicon Lens Antenna Irradiated with Linearly Polarized THz Wave

Apriono¹,

Rahardjo²,

Hiromoto³

2015

MST

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A terahertz system uses dielectric lens antennas for focusing and collimating beams of terahertz wave radiation. Linearly polarized terahertz wave radiation has been widely applied in the terahertz system. Therefore, an accurate method for analyzing the power flow density in the dielectric lens antenna irradiated with the linearly polarized terahertz wave radiation is important to design the terahertz systems. In optics, ray-tracing method has been used to calculate the power flow density by a number density of rays. In this study, we propose a method of ray-tracing combined with Fresnel's transmission, including transmittance and polarization of the terahertz wave radiation to calculate power flow density in a Silicon lens antenna. We compare power flow density calculated by the proposed method with the regular ray-tracing method. When the Silicon lens antenna is irradiated with linearly polarized terahertz wave radiation, the proposed method calculates the power flow density more accurately than the regular ray-tracing. AbstrakMetode Baru untuk Simulasi Kerapatan Arus Daya yang Difokuskan pada Antena Lensa Silicon Teradiasi Menggunakan Gelombang THz Terpolarisasi Linier. Sistem terahertz menggunakan antena lensa dielektrik untuk membuat sinar radiasi gelombang terahertz menjadi fokus dan paralel. Polarisasi linier radiasi gelombang tetrahertz telah banyak diterapkan dalam sistem terahertz. Oleh karena itu, metode yang akurat untuk menganalisis kerapatan arus listrik pada antena lensa dielektrik yang teriradiasi dengan polarisasi linier radiasi gelombang terahertz diperlukan untuk merancang sistem terahertz. Dalam optik, metode ray-tracing telah digunakan untuk menghitung kerapatan arus listrik dengan kerapatan jumlah sinar. Dalam studi ini, kami mengusulkan metode ray-tracing dikombinasikan dengan transmisi Fresnel, termasuk transmisi dan polarisasi radiasi gelombang terahertz untuk menghitung kerapatan arus listrik di antena lensa silikon. Kami membandingkan kerapatan arus listrik yang dikalkulasi dari metode yang diusulkan dengan metode ray-tracing yang reguler. Ketika antena lensa silikon disinari dengan polarisasi linear radiasi gelombang terahertz, metode yang diusulkan mengkalkulasi kerapatan arus listrik dengan lebih akurat dibandingkan ray-tracing reguler.

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