Compact Dual-Polarized Corrugated Horn Antenna for Satellite Communications

Manshari, Saeed; Koziel, Slawomir; Leifsson, Leifur

doi:10.1109/tap.2020.2980337

Cited by 35 publications

(14 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, this is a good antenna design using low profile horns. There are not many examples of low profile horns (with less than one wavelength height) in the literature (e.g., [25,26]) or something that is not so low in profile but compact (e.g., [27]). These few existing low profile horns are not used in an array.…”

Section: Discussionmentioning

confidence: 99%

Design of a Planar Array of Low Profile Horns at 28 GHz

Wang

Kehn

Rajo‐Iglesias

2020

Sensors

View full text Add to dashboard Cite

A planar array of low profile horns fed by a transverse slotted waveguide array in the low millimeter-wave regime (28 GHz) is presented. The array of transverse slots cannot be directly used as antenna as it has grating lobes due to the fact that slot elements must be spaced a guided wavelength. However, these slots can be transformed into low profile horns that with their radiation patterns attenuate the grating lobes. To this aim, low profile horns with less than 0.6λ0 height were designed. The horns include a couple of chips that contribute to further reduce the grating lobes especially in the H-plane. The good performance of the designed array was demonstrated by both simulations and experiments performed on a manufactured prototype. A 5 × 5 array was designed that has a measured realized gain of 26.6 dBi with a bandwidth below 2%, still useful for some applications such as some radar systems. The total electrical size of the array is 6.63λ0× 6.63λ0. The radiation efficiency is very high and the aperture efficiency is above 80%. This all-metal solution is advantageous for millimeter-wave applications where losses sustained by dielectric materials become severe and it can be easily scaled to higher frequencies.

show abstract

Section: Discussionmentioning

confidence: 99%

Design of a Planar Array of Low Profile Horns at 28 GHz

Wang

Kehn

Rajo‐Iglesias

2020

Sensors

View full text Add to dashboard Cite

show abstract

“…Deviations of circuit dimensions from the nominal values may cause a potential violation of performance specifications. The latter are becoming continuously stringent, either due to demands implied by emerging application areas (5G communications 1 , internet of things 2 , wearable/implantable devices 3 ), functionality requirements (wideband 4 , multi-band operation 5 , reconfigurability 6 ), or miniaturization trends 7 . Their fulfilment is challenging even without accounting for tolerances, therefore, only a little margin is normally available to accommodate both statistical deviations and other types of uncertainties, including incomplete knowledge of material parameters, or changing environmental conditions such as temperature, mechanical deformations, etc.…”

Section: Introductionmentioning

confidence: 99%

Rapid multi-criterial design of microwave components with robustness analysis by means of knowledge-based surrogates

Kozieł

Pietrenko‐Dabrowska

2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

Manufacturing tolerances and uncertainties concerning material parameters, e.g., operating conditions or substrate permittivity are detrimental to characteristics of microwave components. The knowledge of relations between acceptable parameter deviations (not leading to violation of design specifications) and the nominal performance (not considering uncertainties), and is therefore indispensable. This paper proposes a multi-objective optimization technique of microwave components with tolerance analysis. The goal is to identify a set of trade-off designs: nominal performance versus robustness (quantified by the maximum input tolerance values that allow for achieving 100-percent fabrication yield). Our approach exploits knowledge-driven regression predictors rendered using characteristic points (features) of the component’s response for a rapid evaluation of statistical performance figures, along with trust-region algorithm to enable low execution cost as well as convergence. The proposed methodology is verified with the use of three microstrip circuits, a broadband filter, and two branch-line couplers (a single- and a dual-band one). It is demonstrated that a Pareto set w.r.t. nominal performance and robustness objectives can be produced using only 40 to 60 EM simulations of the respective structure (per design). Reliability of the proposed algorithm is corroborated with the use of EM-based Monte Carlo simulation.

show abstract

“…One of the most common approaches includes modifying the metallic profile of the horn by introducing corrugations [28], [29]. Some excellent characteristics of corrugated horns have been reported, such as dual-band operation [30], high Gaussicity and a very low sidelobe level (up to -60 dB) [31], large bandwidth [32], and dual-polarization [33].…”

Section: Introductionmentioning

confidence: 99%