A High Efficiency Reflectarray Antenna Design Based on Incident Field

Chen, Yan; Hu, Yang; Liu, Taolin

doi:10.12720/jcm.12.9.532-537

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Amin H and Al Ka'bi pointed out that the adaptive antenna arrays using cross-dipole antennas provide better performance [7]. Yan Chen, Hu Yang, and Taolin Liu propose a reflective array antenna based on incident fields that can improve antenna efficiency [8].…”

Section: Introductionmentioning

confidence: 99%

The Radiation Characteristics of VLF Horizontal Wire Antennas over Multi-layered Earth

2022

Proceedings of 2022 the 12th International Workshop on Computer Science and Engineering

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In this paper, the influence of the earth resistivity characteristics on the radiant field excited by a very low frequency(VLF) horizontal wire antenna is studied, and a 1D isotropic model of the horizontal layered earth is established. Theoretical formulas for the apparent resistivities of the layered ground and the electromagnetic field of antennas are derived for the case of observation points being on both of the site of antennas and far areas. The effects of different earth resistivity and multilayered earth on the radiation performances of the VLF horizontal antenna are simulated and analyzed. From the derivations and analyses, it is pointed out that the VLF horizontal antennas built on a region of high resistivity is conducive to radiant electromagnetic field effectively.

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Section: Introductionmentioning

confidence: 99%

The Radiation Characteristics of VLF Horizontal Wire Antennas over Multi-layered Earth

2022

Proceedings of 2022 the 12th International Workshop on Computer Science and Engineering

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Aspects of Efficiency Enhancement in Reflectarrays with Analytical Investigation and Accurate Measurement

et al. 2020

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This paper presents a thorough review of the techniques involved in the enhancement of the efficiency performance of the reflectarray antenna. The effect of the selection of a suitable patch element or a proper feeding mechanism on efficiency improvement is studied in detail. Reflectarray loss quantification is examined in relation to the design techniques involved in the efficiency improvement. A low loss patch element with a wide reflection phase range and a properly illuminated reflectarray aperture are supposed to offer high efficiency performance. Additionally, the placement, the orientation and the position of a patch element on the reflectarray surface can also affect its efficiency performance. Mathematical equations were developed to estimate the efficiencies of circular and square aperture reflectarray antennas by considering their feed footprints. Moreover, a step by step practical method of predicting and measuring the total efficiency of a reflectarray antenna is presented. The two selected apertures of the reflectarray consisting of the square patch element configuration are fabricated and measured at a frequency of 26 GHz. Their measured efficiencies have been estimated using the derived equations, and the results were compared and validated using the efficiencies obtained by the conventional gain-directivity relation.

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A High Efficiency Reflectarray Antenna Design Based on Incident Field

Cited by 2 publications

References 11 publications

The Radiation Characteristics of VLF Horizontal Wire Antennas over Multi-layered Earth

The Radiation Characteristics of VLF Horizontal Wire Antennas over Multi-layered Earth

Aspects of Efficiency Enhancement in Reflectarrays with Analytical Investigation and Accurate Measurement

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