A New Wide Band and Compact H-Plane Horn Antenna Based on Groove Gap Waveguide Technology

Mohammadpour, Mohammad; Mohajeri, Farzad; Razavi, Seyed Ali

doi:10.1109/tap.2021.3111342

Cited by 10 publications

(6 citation statements)

References 26 publications

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“…Two benefits resulted from this design method: the tapering field distribution throughout the width of the standard H-plane horn is addressed by AMC pins, and the horn may be manufactured as two distinct metal plates and cascaded afterward without any electrical connection issues [76]. The given study provided the essential design concept for a variety of GW-based horn antennas that were designed employing different GW-technology technology such as SIGW [83] and GGW [84], [86]. It is worth noting that the majority of these reported works are concentrated in 2D planar designs.…”

Section: E Horn Antennamentioning

confidence: 99%

An Overview of Recent Development of the Gap-Waveguide Technology for mmWave and sub-THz Applications

Yong¹,

Bagheri²,

Ven³

et al. 2023

Preprint

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<p>Interest in the mmWave and sub-THz bands for next-generation communication and radar systems is increasingly growing due to the available electromagnetic spectrum. This has led to an urgent need to develop low-loss and low-fabrication-cost technologies that perform well at these frequencies. The Gap Waveguide (GW) technology is an emerging and viable contender for the development of radio frequency passive components and antenna systems. The GW technology is based on the parallel-plate waveguide principle. According to Maxwell's equations, ideally, no wave propagates within a structure if the top plate consists of a perfect electric conductor (PEC) while the bottom plate is a perfect magnetic conductor (PMC), and the distance between the plates is less than a quarter wavelength. This PMC structure creates high surface impedance characteristics which provide cutoff to all propagating modes within the airgap. In practice, these magnetic conductors can be created artificially using an Electromagnetic Band Gap (EBG) structure. Based on this simple principle, considerable research and development of novel components with high performance has seen the light in the past decade. The purpose of this paper is to present an overview of current advancements in the design and technical implementations of GW-based antenna systems and components. Practical applications and the industry interest in the developments of the GW technology for mmWave and sub-THz applications have also been scrutinized.</p>

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Section: E Horn Antennamentioning

confidence: 99%

An Overview of Recent Development of the Gap-Waveguide Technology for mmWave and sub-THz Applications

Yong¹,

Bagheri²,

Ven³

et al. 2023

Preprint

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show abstract

“…1 There are different types of antenna design based on their size and dimension, such as (i) planar or two-dimensional (2D} design such as Microstrip patch designs, 2,3 or (ii) more complex 3D designs such as horn antennas. [4][5][6][7] Each of the mentioned designs has their own perks and cons in means of performance measures. Microstrip designs have smaller die size and requires less design area and volume alongside low manufacturing cost, however, they tend to have limited bandwidth and low gain characteristics which can only be enhanced via array design.…”

Section: Introductionmentioning

confidence: 99%

Data driven surrogate modeling of horn antennas for optimal determination of radiation pattern and size using deep learning

Piltan

Kīzīlay

Belen

et al. 2023

Micro & Optical Tech Letters

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Horn antenna designs are favored in many applications where ultra‐wide‐band operation range alongside of a high‐performance radiation pattern characteristics are requested. Scattering‐parameter characteristics of antennas is an important design metric, where inefficiency in the input would drastically lower the realized gain. However, satisfying the requirement for scattering parameters are not enough for having an antenna with high‐performance results, where the radiation characteristic of the design can be changed independently than the scattering parameters behavior. A design might have a high‐efficiency performance, but the radiation characteristics might not be acceptable. Furthermore, there are other design considerations such as size and volume of the design alongside of these conflicting characteristics, which directly affect the manufacturing cost and limits the possible applications. In this work, by using data‐driven surrogate modeling, it is aimed to achieve a computationally efficient design optimization process for horn antennas with high radiation performance alongside of being small in or within the limits of the desired application limits. Here, the geometrical design variables, operation frequency, and radiation direction of the design will be taken as the input, while the realized gain of the design is taken as the output of the surrogate model. Series of powerful and commonly used artificial intelligence algorithms, including Deep Learning had been used to create a data‐driven surrogate model representation for the handled problem, and 80% computational cost reduction had been obtained via proposed approach. As for the verification of the studied optimization problem, an optimally designed antenna is prototyped via the use of three‐dimensional printer and the experimental results ware compared with the results of surrogate model.

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“…Furthermore, with several rows of the metallic pins placed in front of the horn apertures of the single-or dual-RGW based antennas, the endfire radiation is deflected towards upward direction [14], [15]. Recently, the lens consisting of dielectric materials [16] or metamaterial structures [17], [18] was introduced into the GW to enhance the radiation in the endfire direction. However, no reports about the GW based antenna designs with multiple kinds of the radiation beams have been found.…”

Section: Introductionmentioning

confidence: 99%

Dual-Ridge Gap Waveguide-Based Antenna With Diverse Beam Capabilities

Shi

Wang

2022

IEEE Open J. Antennas Propag.

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In this paper, a dual-ridge gap waveguide (DRGW) based antenna with beam scanning, sum-difference beam, and flat top beam capabilities has been proposed. The proposed antenna is composed of a gap waveguide (GW) with two flared horn-shaped ridges. A metallic plane with the same horn shape as the ridge is inserted between two ridges and extended beyond the waveguide. Two coaxial probes are located on the top and bottom plates of the GW, respectively, to excite the antenna. By independently adjusting the magnitudes and phases of two signals fed into the antenna, the patterns including the beam scanning from θ=60 o to θ=120 o in E plane, the sum and difference beams at the endfire direction, and the flat top beam can be flexibly achieved. Measured results are given to demonstrate that the proposed antenna operates in a band of 16.3~18.4 GHz with the average gain about 11 dBi and the front-to-back ratio (FTBR) better than 20 dB for the beam scanning, the sum beam and the flat top beam, and the null depth better than 25 dB for the difference beam.

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A New Wide Band and Compact H-Plane Horn Antenna Based on Groove Gap Waveguide Technology

Cited by 10 publications

References 26 publications

An Overview of Recent Development of the Gap-Waveguide Technology for mmWave and sub-THz Applications

An Overview of Recent Development of the Gap-Waveguide Technology for mmWave and sub-THz Applications

Data driven surrogate modeling of horn antennas for optimal determination of radiation pattern and size using deep learning

Dual-Ridge Gap Waveguide-Based Antenna With Diverse Beam Capabilities

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