A Novel Quad-Polarization Agile Patch Antenna

Ferrero, Fabien; Luxey, Cyril; Staraj, Robert; Jacquemod, G.; Yedlin, M.; Fusco, Vincent

doi:10.1109/tap.2009.2016790

Cited by 79 publications

(42 citation statements)

References 23 publications

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“…For the polarization reconfigurable antenna described in [53], reduction of the bias complexity and antenna size were particular goals. The novelty in the design lies with the reconfigurable feed mechanism that uses a tunable quasi-lumped coupler operated in two modes to feed two input ports of a square microstrip antenna.…”

Section: Polarization Reconfigurabilitymentioning

confidence: 99%

Reconfigurable Microstrip Antennas

Bernhard

2010

Microstrip and Printed Antennas

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While reconfigurable antennas have been implemented in various ways over the past 40 years, reconfigurable microstrip antennas, in particular, have existed for almost as long as the microstrip antenna itself, dating back to the early 1980s. The motivation for implementing reconfigurable properties in an antenna in general is straightforward -the acquisition of new capabilities that eliminate the need for multiple antennas and/or that provide additional degrees of operational freedom that expand system performance. Microstrip antennas are particularly good candidates for achieving reconfigurability, since their well-defined ground planes and planar structures present clear opportunities for integration of a number of popular reconfigurable mechanisms (including switches and tunable materials) and their associated control circuitry. Additionally, since most microstrip antennas operate in resonance and their operation is well modeled and well understood, an informed designer can manipulate the antenna structure and composition in different ways to achieve a variety of reconfigurable properties.This chapter addresses recent advances in the development of reconfigurable microstrip antennas, with an emphasis not only on the antennas themselves, but also on the practical issues surrounding their implementation, including control and system-level design and performance. Fundamentally, microstrip antenna behavior is governed by two kinds of properties: substrate properties and conductor properties. Section 6.2 describes the basic concepts behind changes in substrate parameters, including tunable changes in relative permittivity and permeability, as well as some recent examples that produce useful reconfigurability. Section 6.3 addresses changes in the conductive components of microstrip antennas that can lead to a wide variety of reconfigurability. Section 6.4 discusses many of the important issues surrounding the practical Microstrip and Printed Antennas: New Trends, Techniques and ApplicationsEdited by Debatosh Guha and Yahia M.M. Antar

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Section: Polarization Reconfigurabilitymentioning

confidence: 99%

Reconfigurable Microstrip Antennas

Bernhard

2010

Microstrip and Printed Antennas

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“…This is as a result of the reduction in antenna size and cost, and convenience for certain applications to operate with a single antenna than multiple Antennas [4]- [5]. Moreover, these reconfigurable antennas have interesting characteristics as they can provide various features in different operating frequencies [6]- [7], polarizations [8], [9], and radiation patterns [10], [11] by changing the current distribution over the volume of the antennas.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2015

IJCT

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“…In the literature, there is plenty of work reported on simple dual-fed circularly-polarized antennas, such as crossed dipoles [5] or dual-fed microstrip patches [6][7]. However most of the works (including [5][6][7]) propose to use a Δ ph = 90° phase shift between the two input ports.…”

Section: Introductionmentioning

confidence: 99%

“…However most of the works (including [5][6][7]) propose to use a Δ ph = 90° phase shift between the two input ports. This is in order to achieve a 90° phase shift between the two orthogonal components in the farfield.…”

Section: Introductionmentioning

confidence: 99%

Shaping the axial-ratio footprint of crossed-dipole antennas

Narbudowicz¹,

Ammann²,

Przewocki

2014

2014 Loughborough Antennas and Propagation Conference (LAPC)

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Abstract-A method is proposed to adaptively change the axial-ratio beam of simple circularly-polarized antennas. It is shown, that by varying the phase shift between two orthogonal elements the axial-ratio beam shape can be dynamically adjusted. This allows control of the direction of minimum axial-ratio and the ability to increase or decrease the beamwidth in one of two planes. The method is intended for satellite navigation systems: it can improve the rejection of reflected signals in varying propagation conditions (e.g. urban canyons), while using simple and low-cost circularly-polarized antennas.

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A Novel Quad-Polarization Agile Patch Antenna

Cited by 79 publications

References 23 publications

Reconfigurable Microstrip Antennas

Reconfigurable Microstrip Antennas

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Shaping the axial-ratio footprint of crossed-dipole antennas

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