Array of stacked leaky-wave antennas in groove gap waveguide technology

Memeletzoglou, Nafsika; Rajo‐Iglesias, Eva

doi:10.1038/s41598-021-81640-7

Cited by 11 publications

(3 citation statements)

References 25 publications

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“…The comparison between this work with other arrays in similar frequency bands based on the use of layer slotted waveguides is presented in Table 1. This includes gap waveguide [67], groove gap waveguide [68,69], slotted waveguide in groove gap waveguide (GGWG) implemented with glide symmetric holes [70], in conventional rectangular waveguide (RWG) [71] and in SIW [72].…”

Section: Modified Transverse Polarization Antennamentioning

confidence: 99%

Design and analysis antennas of transverse polarization on the dielectric waveguide

Shaaban

Насыбуллин

Sedelnikov

2023

Preprint

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This paper addresses the issue of constructing millimeter band antennas using dielectric waveguide structures. A new type of linear antenna, incorporating metal pins on the side walls of the grooved dielectric waveguide, is proposed for generating polarization perpendicular to the waveguide axis. However, these antennas suffer from the drawback of cross-polarized radiation in directions close to the waveguide axis. To overcome this limitation, a modified antenna design with transverse polarization is introduced, featuring a closed groove waveguide with a longitudinal slot in the top of wall. The paper provides a comparison between two types of dielectric waveguide antennas. First, waveguide antenna with grooves in the dielectric which resulting longitudinal polarization, and second, waveguide antenna with quarter-wavelength pins which resulting transverse polarization. Electrodynamic modeling data is provided to demonstrate the effectiveness of the proposed antennas for satellite, 5G antenna, and radar applications. Finally, antenna of quarter-wavelength pins is proposed with frequency of 39GHz, gain of 19.8dBi, width of radiation pattern of 3.2\(^{\circ}\) and side lobe level (SLL) of -13.3dB has been achieved.

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Section: Modified Transverse Polarization Antennamentioning

confidence: 99%

Design and analysis antennas of transverse polarization on the dielectric waveguide

Shaaban

Насыбуллин

Sedelnikov

2023

Preprint

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“…On the other hand, the modularity in passive antenna arrays has been hardly explored. In [22], a vertical stacking of leaky-wave antennas has been presented to enhance the directivity in the E-plane. Nevertheless, the leakage of each antenna has to be adjusted to obtain a uniform feeding along the array which hampers modularity.…”

Section: Introductionmentioning

confidence: 99%

A 1-to-8 Fully Modular Stacked SIW Antenna Array for Millimeter-Wave Applications

Segura-Gómez¹,

Palomares‐Caballero²,

Padilla³

2022

Preprint

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This paper presents a vertically stacked SIW antenna array that enables different array configurations with the minimum number of SIW layers. This achievement lies in the modular feature offered by the proposed design. Specifically, 4 distinct array configurations can be produced with only 3 different design of SIW layers. Depending on the number of SIW layers employed in the stacked antenna, the directivity in the E-plane of radiation is modified. To obtain an equal and in-phase power distribution among the array elements, H- and E-plane corporate feeding networks are efficiently implemented in each array configuration. Array configurations of 1, 2, 4 and 8 radiating layers are offered by the proposed modular array, where each radiating layer is formed by 8 H-plane SIW horn antennas. The simulated directivity for the array configurations ranges from 15.8 dBi to 23.8 dBi and the main beam direction remains fixed along the operating frequency band. The array design has been manufactured and proper agreement between simulated and measured results are observed. The measured impedance bandwidth in all the array configurations is from 35 GHz to 41 GHz (15.79% bandwidth) with a reduction in the E-plane beamwidth as the number of radiating layers increases.

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“…On the other hand, the modularity in passive antenna arrays has been hardly explored. In [14], a vertical stacking of leaky-wave antennas has been presented to enhance the directivity in the E-plane. Nevertheless, the leakage of each antenna has to be adjusted to obtain a uniform feeding along the array which hampers modularity.…”

Section: Introductionmentioning

confidence: 99%

A 1-to-8 Fully Modular Stacked SIW Antenna Array for Millimeter-Wave Applications

Segura-Gómez

Palomares‐Caballero

Padilla

2022

IEEE Trans. Antennas Propagat.

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This paper presents a vertically stacked SIW antenna array that enables different array configurations with the minimum number of SIW layers. This achievement lies in the modular feature offered by the proposed design. Specifically, 4 distinct array configurations can be produced with only 3 different design of SIW layers. Depending on the number of SIW layers employed in the stacked antenna, the directivity in the E-plane is modified. To obtain an equal and in-phase power distribution among the array elements, H-and E-plane corporate feeding networks are efficiently implemented in each array configuration. Array configurations of 1, 2, 4 and 8 radiating layers are offered by the proposed modular array, where each radiating layer is formed by 8 H-plane horn antennas. The simulated directivity for the array configurations ranges from 15.8 dBi to 23.8 dBi and the main beam direction remains fixed along the operating frequency range. The array design has been manufactured and agreement between simulated and measured results are observed. The measured impedance bandwidth in all the array configurations is from 35 GHz to 41 GHz (15.79% bandwidth) with a reduction in the E-plane beamwidth as the number of radiating layers increases.

show abstract

Array of stacked leaky-wave antennas in groove gap waveguide technology

Cited by 11 publications

References 25 publications

Design and analysis antennas of transverse polarization on the dielectric waveguide

Design and analysis antennas of transverse polarization on the dielectric waveguide

A 1-to-8 Fully Modular Stacked SIW Antenna Array for Millimeter-Wave Applications

A 1-to-8 Fully Modular Stacked SIW Antenna Array for Millimeter-Wave Applications

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