ALPSS: A millimetre-wave aperture-coupled patch antenna on a substrate lens

Eleftheriades, George V.; Brand, Y.; Zürcher, J. F.; Mosig, J. R.

doi:10.1049/el:19970150

Cited by 32 publications

(17 citation statements)

References 2 publications

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“…T HE millimeter(mm)-wave frequency bands are very attractive for various indoor and outdoor wireless applications, such as mm-wave imaging [1], radar systems [2], collision avoidance devices [3], time-domain spectroscopy [4], radio-astronomy [5], and satellite communications [6]. This has generated a growing interest in developing flexible mm-wave antennas whose performance can be adapted to any application.…”

Section: Introductionmentioning

confidence: 99%

“…This configuration avoids loss into surface modes [16], makes easier to realize multielement arrays [13], and allows for an easy integration of active circuits at the back of the lens [1]. Aperture-coupled microstrip patch antennas [3], [17] or arrays [18], and proximity-coupled patches [19] can also be used to illuminate the lens. Lenses usually encountered in literature have canonical shapes: single-(e.g., spherical, hyperbolical) or two-surface (e.g., bibyperbolical) lenses for dielectric lens antennas [20], and elliptical or extended hemispherical profiles for substrate lenses [1], [3]- [5], [14]- [16], [18], [19], [21].…”

Section: Introductionmentioning

confidence: 99%

“…Aperture-coupled microstrip patch antennas [3], [17] or arrays [18], and proximity-coupled patches [19] can also be used to illuminate the lens. Lenses usually encountered in literature have canonical shapes: single-(e.g., spherical, hyperbolical) or two-surface (e.g., bibyperbolical) lenses for dielectric lens antennas [20], and elliptical or extended hemispherical profiles for substrate lenses [1], [3]- [5], [14]- [16], [18], [19], [21]. Their basic functionality merely consists in controlling the directivity of the antenna and eventually the gaussicity of the radiated beam [14], [21] by adjusting the extension length of the extended hemisphere.…”

Section: Introductionmentioning

confidence: 99%

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A new accurate design method for millimeter-wave homogeneous dielectric substrate lens antennas of arbitrary shape

Chantraine-Bares

Sauleau

Coq

et al. 2005

IEEE Trans. Antennas Propagat.

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The synthesis and the optimization of three-dimensional (3-D) lens antennas, consisting of homogeneous dielectric lenses of arbitrary shape and fed by printed sources, are studied theoretically and experimentally at millimeter(mm)-wave frequencies. The aim of the synthesis procedure is to find a lens profile that transforms the radiation pattern of the primary feed into a desired amplitude shaped output pattern. This synthesis problem has been previously applied for dielectric lenses and reflectors. As far as we know, we propose, for the first time, to adapt and implement it for the design of substrate lens antennas. The inverse scattering problem is solved in two steps. In the first one, the geometry of the 3-D lens is rigorously derived using geometrical optics (GO) principles. The resulting second-order partial-differential equation is strongly nonlinear and is of the Monge-Ampère (M.A) type. The iterative algorithm implemented to solve it is described in detail. Then, a surface optimization of the lens profile combined with an analysis kernel based on physical optics (PO) is performed in order to comply with the prescribed pattern. Our algorithms are successfully validated with the design of a lens antenna radiating an asymmetric Gaussian pattern at 58.5 GHz whose half-power beamwidth equals 10 in H plane and 30 in E plane. The lens is illuminated by a microstrip 2 2 patch antenna array. Two lens prototypes have been manufactured in Teflon. Before optimization, the measured radiation patterns are in very good agreement with the predicted ones; nevertheless, the 12 dB side lobes and oscillations appearing in the main lobe evidence a strong difference between the desired and measured patterns. This discrepancy is significantly reduced using the optimized lens.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new accurate design method for millimeter-wave homogeneous dielectric substrate lens antennas of arbitrary shape

Chantraine-Bares

Sauleau

Coq

et al. 2005

IEEE Trans. Antennas Propagat.

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show abstract

“…Nowadays, the combination of lenses with planar antennas is being proposed as a good solution to overcome this issue. Several applications have demonstrated that a dielectric lens in direct contact with the antenna provides circular polarization and good match to the f-number of a telescope [7,8,16], such is confirmed with the new CMB polarization experiment called POLARBEAR [10,11].…”

Section: Introductionmentioning

confidence: 79%

An array of lens-coupled antennas for cosmic microwave background measurements in the 30 Ghz band

et al. 2011

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An array of bow-tie slot antennas coupled through an extended hemispherical lens is proposed to operate in the 30 GHz frequency band. The design includes a combination of three microstrip Wilkinson power dividers (WPD) and transitions to coplanar wave guides (CPW) to form the feeding antenna network. This configuration is suitable for the integration with heterodyne imaging detectors commonly used in radioastronomy. Measurements and simulation results exhibit a frequency range of operation from 20 to 40 GHz with a bandwidth of 24% achieved for −10 dB return loss at the central frequency. The measured radiation patterns show a maximum peak gain of around 13 dB with HPBW of 10 • for the E-plane, and whose first side lobes are lower than 13 dB below the main lobe in both angular shift sides. The presented results will be considered as preliminary feasibility studies in the 30 GHz QUIJOTE-CMB Instrument, which is designed to study the anisotropies of the Cosmic Microwave Background (CMB).

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“…Earlier to this work, the University of Michigan developed double-slot antennas on a silicon material lens (Filipovic et al, 1993) and the Swiss Federal Institute of Technology developed aperture-coupled patch antenna on a substrate lens (Eleftheriades et al, 1997). In order to achieve the stringent requirements for efficiency and low cost necessary for a practical radio communication system, we propose our lens antenna for which lens is made of polyethylene plastic for commercial applications.…”

Section: Introductionmentioning

confidence: 99%

Analysis into Proximity-Coupled Microstrip Antenna on Dielectric Lens

Mall¹

2011

Microstrip Antennas

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ALPSS: A millimetre-wave aperture-coupled patch antenna on a substrate lens

Cited by 32 publications

References 2 publications

A new accurate design method for millimeter-wave homogeneous dielectric substrate lens antennas of arbitrary shape

A new accurate design method for millimeter-wave homogeneous dielectric substrate lens antennas of arbitrary shape

An array of lens-coupled antennas for cosmic microwave background measurements in the 30 Ghz band

Analysis into Proximity-Coupled Microstrip Antenna on Dielectric Lens

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