Dual-polarized Frequency Selective Surface for SOTM applications

Sánchez‐Escuderos, Daniel; Ferrando-Rocher, Miguel; Herranz, Jose I.; Moy-Li, Hon Ching; Valero‐Nogueira, Alejandro

doi:10.1049/cp.2018.1070

Cited by 3 publications

(3 citation statements)

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“…In the past, Gap Waveguide technology (GW) has already been extensively described and detailed [1]- [16]. Among its advantages it includes the ability of the surface created by the pins to confine the field even when the parts are not in contact.…”

Section: Introductionmentioning

confidence: 99%

1×4 Antenna Array corporately fed by a Novel Half-Mode Groove Gap Waveguide network

Ferrando-Rocher

Herranz-Herruzo²,

Valero‐Nogueira³

et al. 2022

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)

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This paper presents a Ka-band linearly-polarized 4-antenna array fed with a novel corporate distribution network that uses a half-mode groove gap waveguide (HM-GGW). The antenna feed has no contact with the top cover where the array antenna is located, thanks to the features inherent in gap waveguide technology (GW). This technology, with many advantages, sometimes suffers from a complex mechanization, which in this case is reversed by the novel network proposed in this paper.

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Section: Introductionmentioning

confidence: 99%

1×4 Antenna Array corporately fed by a Novel Half-Mode Groove Gap Waveguide network

Ferrando-Rocher

Herranz-Herruzo²,

Valero‐Nogueira³

et al. 2022

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)

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“…Other possible solutions include the use of a superstrate in front of the antenna array. In [9]- [11], the superstrate is made up of several dielectric layers, while, in [12], the superstrate is a metallic grid working as a partially reflecting surface (PRS). In those works, the grating lobe level is reduced more than 10 dB with the added advantage of not relying on a complex BFN.…”

Section: Introductionmentioning

confidence: 99%

Grating Lobes Reduction Using a Multilayer Frequency Selective Surface on a Dual-Polarized Aperture Array Antenna in Ka-Band

et al. 2020

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This paper presents a multilayer frequency selective surface for a dual-polarized aperture array antenna in Ka-band. The 8×8 elements of the array are cylindrical open cavities with a diameter of 0.6λ 0 at 30 GHz, and spaced one wavelength. Due to this separation between elements, which is limiting and not reducible by the architecture of the feeding network and the size of the radiating element, grating lobes appear. Frequency Selective Surfaces (FSS) can be a solution to this problem without modifying the feeder architecture nor the radiating elements. This paper presents the FSS design for reducing grating lobes level, the antenna assembly, and the experimental validation. The full antenna performance demonstrates that FSS operates in a range identical to the feeder (29.5 GHz to 31 GHz) with the added benefit of reducing the grating lobes level more than 10 dB for both polarizations.

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“…However, there is a big obstacle for them to be used for mm-wave band due to their huge losses for large arrays. Conversely, notable efforts have been made in the past to achieve dualpolarized antennas using other solutions, such as parabolic reflectors [7]- [8], reflectarrays [9]- [11], lenses [12]- [13], waveguide arrays [14]- [15], planar structures [16] or leaky-wave antennas [17]. These type of antennas are widely developed and studied, and they can meet some of the SATCOM on-themove requirements.…”

Section: Introductionmentioning

confidence: 99%

$8\times8\,\,Ka$ -Band Dual-Polarized Array Antenna Based on Gap Waveguide Technology

Ferrando-Rocher

Herranz-Herruzo

Valero‐Nogueira

et al. 2019

IEEE Trans. Antennas Propagat.

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This paper describes an 8×8 fully-metallic highefficiency dual-polarized array antenna working at Ka-band, based on Gap Waveguide concept. The radiating element is a circular aperture backed by two stacked cylindrical cavities, which are fed orthogonally to achieve a dual-polarized performance. Both feeding layers consist of a gap waveguide corporate network to reach all the cavities backing each radiating element. Cavities are naturally integrated within the bed of nails hosting grooves and ridges for guiding EM field, leading to a low-profile dualpolarized array in Ka-band. Experimental results present good agreement with simulations. Measured radiation patterns agree well with simulation and the antenna provides an average gain over 27 dBi within its operating bandwidth (29.5 to 31 GHz).

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Dual-polarized Frequency Selective Surface for SOTM applications

Cited by 3 publications

References 0 publications

1×4 Antenna Array corporately fed by a Novel Half-Mode Groove Gap Waveguide network

1×4 Antenna Array corporately fed by a Novel Half-Mode Groove Gap Waveguide network

Grating Lobes Reduction Using a Multilayer Frequency Selective Surface on a Dual-Polarized Aperture Array Antenna in Ka-Band

$8\times8\,\,Ka$ -Band Dual-Polarized Array Antenna Based on Gap Waveguide Technology

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