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| Last updated 17 May, 2012 |
Future Special Issues
Details of Special IssuesInnovative Phased Array Antennas based on Non-regular Lattices and Overlapped Subarrays There
is a growing demand for large aperture antennas exhibiting increased
capabilities (in terms of flexibility, reconfigurability, frequency
bandwidth, and field of view) and reduced cost and complexity. Organizing
a large array into overlapped subarrays or adopting a non-regular
lattice represent two effective strategies to achieve high performance
while minimizing the number of controls for a limited field of view
or wide band array. Arrays using non-regular lattices are a valid
alternative to periodic arrays because they are able to generate
an equivalent tapering by adjusting the element positions They also
allow reducing the number of elements, and increasing the DC to
RF overall efficiency of the antenna. Dividing a large array into
overlapped sub-arrays (i.e. with a radiating antenna element contributing
to more than one sub-array) permits increasing the extension of
a sub-array, with improved angular filtering performance, while
keeping the same or an increased inter-subarray distance. Because
the number of subarrays is reduced compared to the total number
of elements populating the whole array, a comparable reduction in
the number of control elements is achieved and the overall antenna
complexity may be reduced with respect to a conventional design.
Guest Editors Dr. Giovanni Toso Dr. Robert Mailloux
IEEE Transactions on Antennas and Propagation Announces a Special Issue on“Antennas and Propagation at mm- and sub mm-waves” Millimeter and sub-millimeter waves have been the focus of intensive research activities over the past several years. Application of these technologies has advanced beyond traditional high-cost niche uses - mostly related to radio astronomy and space applications - to embrace widespread new consumer applications, some of which show significant market potential. Increased opportunity to exploit these bands is in part created by the spectrum availability that enables extremely high data rates and the inherent miniaturizability of the radio front-ends. This naturally drives concomitant advancements in semiconductor technology at mm-waves and sub-millimeter waves that lower technology deployment cost and make it affordable for applications such as home multi-gigabit wireless systems, active and passive high resolution imaging for medical diagnostic or civil security applications, automotive radar, and body-area networks. Despite recent advances in these technologies, a wide range of problems remain to be solved for both high-end and consumer applications, particularly within the scope of antennas and propagation. For example, cost reduction and antenna efficiency improvements remain key challenges whose solution depends upon continued research efforts focusing on integration of the antenna with the front-end in a single MMIC, implying co-design. The development of practical implementable solutions is also a key challenge in these bands where established lower frequency solutions are not scalable. Challenges remain for antennas in package, antennas on chip, phased arrays, lens antennas and focusing systems. The development of new integration solutions, new materials (including metamaterials), and new guiding structures as well as the improvement of modeling techniques, analysis methods, CAD design tools, antenna and system measurement techniques, and propagation models will all contribute to the successful deployment of new systems. The objective of this special issue is to provide an overview of recent advances and emerging applications in millimeter and sub-millimeter waves, especially beyond 60 GHz up to terahertz, with strong focus towards practical implementable solutions. This issue will consist of invited and contributed papers on a broad range of topics including antennas, propagation, technology and measurement techniques, numerical methods, new applications, or other relevant related aspects. Manuscripts should conform to the requirements for regular papers in the Transactions on Antennas and Propagation as specified in the information for Authors in the inside back cover of a recent issue or on the web site (http://ieeeaps.org/aps_trans/index.htm). Potential contributors may contact one of the Guest Editors by email to determine the suitability of their contribution to the special issue. All papers must be submitted online through the AP Transactions Manuscript Central web site (http://mc.manuscriptcentral.com/tap-ieee). During submission, please (1) choose “Special Issue Paper” as the manuscript type and (2) include in the cover letter a statement to the Editor-in-Chief that the manuscript is intended for this special issue. Guest Editors Prof.
Jorge Costa Prof.
Carlos Fernandes Prof.
Jiro Hirokawa Dr.
Duixian Liu Prof.
Ronan Sauleau
Antenna Systems and Propagation for Cognitive Radio Cognitive radio systems are quickly reshaping the future of wireless communications, sensing, and data sharing. Wireless data traffic is projected to double every year and this will impact spectrum availability in all sectors of our society. Various research communities, however, have differing definitions of cognitive radio (CR) and each community has unique views as the defining features of CR. Communication theorists view CR as primarily about dynamic spectrum sharing, while networking/IT researchers interpret CR as a device capable of cross-layer optimization. Computer scientists picture CR as a device capable of learning and adapting, with assumed capabilities, while the hardware/RF community often views it as an evolutionary step from Software Defined Radio. Amid all of these conceptions of cognitive radio, the possibilities for antenna systems and related propagation issues to play more active role in system-level performance are often lost. The focus of this special issue is to showcase a unified vision for future cognitive radios, with an emphasis on antenna and RF front ends, and the algorithms for learning and controlling the RF/antenna front-end of any future cognitive radios as well as the sensing and integration of the propagation environment into the system configuration. More specifically, we would like to cover topics in the following areas:
Guest Editors Prof. Ernst Bonek Prof. Christos Christodoulou Dr. David Kunkee Prof. Kathleen Melde Deadlines:
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