The strip-loaded hybrid-mode feed horn

Lier, E.; Schaug-Pettersen, T.

doi:10.1109/tap.1987.1144228

Cited by 44 publications

(7 citation statements)

References 7 publications

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“…Most of these horns support hybrid modes, which adjust the field distribution at the aperture of the horn and lead to low SLLs and cross-polarisation levels [2,3]. Corrugated horns [4][5][6], dielectric core horns [7], and strip-loaded horns [8] are some types of hybrid-mode antennas. Metamaterials have recently attracted significant research interest in physics, material sciences, microwave and antenna engineering, etc.…”

Section: Introductionmentioning

confidence: 99%

Side lobe level reduction and gain enhancement of a pyramidal horn antenna in the presence of metasurfaces

Moradi

Mohajeri

2018

IET Microwaves, Antennas & Propagation

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In this study, the design method and experimental presentation of low‐refractive‐index metasurfaces have been reported. These metasurfaces are employed in the interior E‐plane walls of a pyramidal horn antenna. The target is a linearly polarised horn antenna with low side lobe levels (SLLs) and symmetric radiation patterns in the Ku band (13–18 GHz) for satellite communications. Particle swarm optimisation algorithm has been applied to the design procedure to achieve low‐loss dispersion‐engineered metasurfaces with desirable surface impedance characteristics. The metasurfaces were fabricated using precise low‐cost printed‐circuit board technique. There was perfect agreement between the measurement and simulation results. The fabricated horn showed low SLLs and an increase in the gain across the entire bandwidth. The SLLs are reduced by 14–29 dB in the E‐planes and the gain is improved by 1.2–2.3 dB compared with a corresponding conventional horn. The far field radiation patterns of the metahorn verify the metasurface design approach. Furthermore, this method assures a lighter horn with an easier manufacturing technique in comparison with the other conventional horns, such as corrugated horns.

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Section: Introductionmentioning

confidence: 99%

Side lobe level reduction and gain enhancement of a pyramidal horn antenna in the presence of metasurfaces

Moradi

Mohajeri

2018

IET Microwaves, Antennas & Propagation

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“…The E-plane walls of the Simulated Scalar Feed (SSF) horn antenna are fabricated with dielectric substrate of appropriate thickness whose inner surface is periodically loaded with thin conducting strips which is called simulated corrugated surface [1,2,3,4,5].It is well known that the E-plane aperture electric field distribution of a metallic corrugated antenna whose corrugation depth is judiciously selected for the balanced hybrid mode of operation is cosine in nature. The SSF horn antenna is also exhibiting a cosine nature for its Eplane aperture electric field distribution [3,4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of E- Plane Radiation Patterns of a Simulated Scalar Feed Horn Antenna

Rodrigues¹

2014

IOSRJECE

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Simulated scalar feed horn antennas are found to be exhibiting identical radiation characteristics of metallic corrugated feed horn antennas of same dimensions. Hence, in this paper, the E-plane radiation characteristics of a simulated scalar feed horn antenna is analysed theoretically by extending the theory of metallic corrugated horn antennas. The theoretical E-plane radiation patterns at different frequencies in Xband are compared with that of experimentally obtained E-plane radiation patterns. Even though the nulls of of the radiation patterns are not fully realised by the theory, the main beam characteristics are well explained. Losses that may occur in the dielectric substrate of the E-plane walls are not considered in the theoretical explanation. This may be the reason for slight discrepancies observed in the experimental and theoretical 3-dB and 10 dB beam widths.

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“…A large amount of metal is also wasted in this process. Alternately, conical horns with conducting strips loaded on dielectric surface of uniform thickness as horn wall are also reported [1,2].Square pyramidal horns with metallic strip loaded dielectric plates as E-plane walls are also reported [3,4,5].However, the desired beam symmetry in the two principal planes are not obtained in the case of these feed horns. The large aperture of these horns may be the reason of unsymmetrical beam patterns in the two principal planes.…”

Section: Introductionmentioning

confidence: 99%

A Small Square Aperture Simulated Corrugated Scalar Feed Horn with Beam Symmetry

Rodrigues¹

2013

IOSR-JECE

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The strip-loaded hybrid-mode feed horn

Cited by 44 publications

References 7 publications

Side lobe level reduction and gain enhancement of a pyramidal horn antenna in the presence of metasurfaces

Side lobe level reduction and gain enhancement of a pyramidal horn antenna in the presence of metasurfaces

Analysis of E- Plane Radiation Patterns of a Simulated Scalar Feed Horn Antenna

A Small Square Aperture Simulated Corrugated Scalar Feed Horn with Beam Symmetry

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