Experimental Results on a Planar Array of Parasitic Dipoles Fed by One Active Element

Folgueiras, M. Alvarez; Rodríguez‐González, J. A.; Ares‐Pena, F.

doi:10.2528/pier11010303

Cited by 7 publications

(6 citation statements)

References 19 publications

(22 reference statements)

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“…One way to reduce the complexity and cost of an array antenna is to eliminate the need for a complex feed network by feeding parasitic elements via a single active element . The elements that are not directly driven, called parasites, receive their excitations from the driven element through field coupling.…”

Section: Introductionmentioning

confidence: 99%

“…In , we designed a 48‐parasite pencil beam array with moderate gain and bandwidth using the method of moments as implemented in FEKO simulation software and its particle swarm optimization module. Here, we describe the design and construction of a similar array, more compact than that of , with optimized directivity and impedance matching a 50 Ω feedline. Measurements of its characteristics with and without a protective radome agree well with theory.…”

Section: Introductionmentioning

confidence: 99%

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Measured characteristics of a planar array of parasitic elements fed by one active element

Salas-Sánchez

Fondevila-Gómez

Rodríguez‐González

et al. 2015

Micro & Optical Tech Letters

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An antenna design based on the use of an active dipole placed above a ground plane with an array of parasitic dipoles is presented. The presence of the parasitic dipoles increases the effective antenna size and significantly improves directivity over that of an isolated dipole in front of a ground plane. In addition, the use of just one active element makes for a very simple feed network that reduces the complexity of the antenna. As an application of this technique, a planar array of 48 parasitic dipoles above a ground plane, fed by a single active dipole at 5 GHz, was designed to afford a pencil beam pattern of moderate gain and bandwidth. Measurements agree well with theory. With a protective radome in place, directivity and gain were, respectively, 15.30 and 14.78 dB, the sidelobe level −6.15 dB, and the bandwidth 12.7% for S11 < −10 dB and 3.1% for gain loss <3 dB. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2807–2809, 2015

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measured characteristics of a planar array of parasitic elements fed by one active element

Salas-Sánchez

Fondevila-Gómez

Rodríguez‐González

et al. 2015

Micro & Optical Tech Letters

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“…Each element, in the presence of others, acquires a phased-up transscattering capability. In a further work, this design was validated by means of a prototype, where experimental results showed a good agreement with the expected ones [22].…”

Section: Introductionmentioning

confidence: 99%

Design of Planar Arrays Composed by an Active Dipole Above a Ground Plane With Parasitic Elements

RodrÃguez-GonzÃ¡lez¹,

Ares‐Pena²

2011

PIER

Self Cite

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Abstract-In this paper, several simple antenna designs based on the use of an active dipole placed above a ground plane with an array of parasitic dipoles are presented. The parasitic dipoles are used to modify the pattern of the active dipole yielding a pencil beam of moderate gain. The use of one active element provides a very simple feeding network that reduces the complexity of the antenna. The proposed technique optimizes the geometry and configuration of both active and parasitic elements. It is shown that the performance of the designed antennas is considerably better than that of a similar antenna without parasitic elements.

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“…The introduction of the equivalent dipole distribution will allow the study of multiple dipole scattering structures [37], as suggested for a 2D obstacle distribution in Fig. 14.…”

Section: Equivalent Dipole Approximationmentioning

confidence: 99%

Wip Study of Multiple Metallic Obstacle Scattering

Lucanu

Bogdan²,

Baudrand³

2013

PIER

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Abstract-The Wave Iterative Process is applied and validated for the study of the scattering of a plane wave by a multiple metallic dipole diffraction structure. The case of a single metallic dipole is treated, at first in normal incidence, than arbitrarily placed with respect to the incident wave. A double dipole scattering structure is studied, mutual influence being taken into account. The diffraction system is further enlarged to 5 randomly placed dipoles, the results issued from the WIP study being compared with those given by the Moments Method. Finally, the possibility of taking into account a very large number of dipoles is examined, by introducing an equivalent dipole distribution. The influence of this approximation on the WIP precision is presented.

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Experimental Results on a Planar Array of Parasitic Dipoles Fed by One Active Element

Cited by 7 publications

References 19 publications

Measured characteristics of a planar array of parasitic elements fed by one active element

Measured characteristics of a planar array of parasitic elements fed by one active element

Design of Planar Arrays Composed by an Active Dipole Above a Ground Plane With Parasitic Elements

Wip Study of Multiple Metallic Obstacle Scattering

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