Mutual coupling between rotated horns in a ground plane

Bird, Trevor S.; Bateman, D.G.

doi:10.1109/8.299603

Cited by 25 publications

(16 citation statements)

References 10 publications

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“…The MMM yields a Generalized Admittance Matrix (GAM) representation of the electromagnetic coupling, as detailed by Bird [1990] and Bird and Bateman [1994]. The computational engine described by Coman et al [2006] is employed in this work for the evaluation of the total radiated fields.…”

Section: Effect Of the Mutual Couplingmentioning

confidence: 99%

Implementation of polarization agility in planar phased‐array antennas by means of interleaved subarrays

Simeoni

Lager

Coman³

et al. 2009

Radio Science

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[1] A method for ensuring polarization agility in conjunction with beam steering in planar array antennas is proposed. It relies on interleaving two subarrays with orthogonal, linear polarizations that, together, can generate arbitrary polarization states: adjustable linear, elliptical, and left-or right-handed circular. The complexity of the resulting system is comparable with that of standard, fully populated array antennas consisting of identical, linearly polarized elements. By dynamically controlling the amplitude and the phase of the signals fed to the subarrays, a stable polarization state can be maintained during beam steering. The concept is validated by numerically investigating an architecture obtained by interleaving nonuniform subarrays designed by means of a deterministic placement strategy. The effects of the mutual coupling between the different radiating elements are modeled and discussed.Citation: Simeoni, M., I. E. Lager, C. I. Coman, and A. G. Roederer (2009), Implementation of polarization agility in planar phased-array antennas by means of interleaved subarrays, Radio Sci., 44, RS5013,

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Section: Effect Of the Mutual Couplingmentioning

confidence: 99%

Implementation of polarization agility in planar phased‐array antennas by means of interleaved subarrays

Simeoni

Lager

Coman³

et al. 2009

Radio Science

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“…The theoretical background for the analysis of the radiation from rectangular apertures and for evaluating the mutual coupling between arbitrary apertures relies on the methodology presented in [21] and [22]. However, the straightforward application of that methodology in the case of large finite, sparse arrays (containing hundreds, possibly thousands of elements) is prohibitive from the point of view of the computing resources.…”

Section: Evaluation Of the Radiation Properties Of Finite Nonperimentioning

confidence: 99%

The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

Coman

Lager

Ligthart

2006

IEEE Trans. Antennas Propagat.

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Abstract-A consistent strategy for the design of finite array antennas consisting of differently sized radiating elements is discussed. In view of increasing the total bandwidth of the antenna system, while maintaining a low mutual coupling between the elementary radiators, sparse subarrays, operating at adjacent frequency ranges, are interleaved on a common (shared) aperture. The sparse architectures are designed using a combinatorial method that ensures an acceptable behavior in the side-lobes region in conjunction with a narrow beamwidth. The effect of the mutual coupling between identical and differently sized elements is accurately evaluated and is accounted for in predicting the performance of each individual radiator. The concept is illustrated by designing a shared aperture antenna consisting of two interwoven subarrays that jointly cover a fractional bandwidth of 14% in the X-band. Cavity-backed, stacked-patches antennas with coaxial feeding are used as elementary radiators.Index Terms-Mode-matching methods, shared aperture, sparse array antennas.

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“…A 9-beam receiving array for a wavelength of 21 cm [3] is successfully operated on the Parkes 64-m radio telescope (Australia). A 32-element focal array for the frequency band 85−115 GHz is used on a 14-m radio telescope at the Massachusetts University (FCRAO) [4].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Radio Telescopes with Multielement Microstrip Focal Arrays

Majorova

Хайкин

2005

Radiophys Quantum Electron

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We calculate beam patterns (BPs) and power characteristics of radio telescopes in the multibeam regime with the use of different types of microstrip focal arrays. A "terrace" design of focal array for illumination of the asymmetric secondary mirror of the RATAN-600 radio telescope and a symmetric paraboloid dish is proposed. Ways for optimization of this type of array are considered. Characteristics of a radio telescope with a millimeter-wave planar circularly polarized focal array are calculated. Some applications of multibeam microstrip focal arrays are considered.

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Mutual coupling between rotated horns in a ground plane

Cited by 25 publications

References 10 publications

Implementation of polarization agility in planar phased‐array antennas by means of interleaved subarrays

Implementation of polarization agility in planar phased‐array antennas by means of interleaved subarrays

The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

Characteristics of Radio Telescopes with Multielement Microstrip Focal Arrays

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