State-of-the-Art Antenna Technology: The 2008 Antenna Applications Symposium
From: Vol. 52 | No. 1 | January 2009 | Page 24 by Daniel Schaubert, University of Massachusetts; Jennifer Bernhard, University of Illinois; Robert Mailloux, US Air Force Research Laboratory; W. Devereux Palmer, US Army Research Office The Antenna Applications Symposium and its predecessor, the Air Force Antenna Symposium, have for more than 50 years provided a unique forum for exchange of ideas and information about the practical aspects of antenna design, development and use in systems....
dipole antenna is a radio antenna that can be made of a simple wire, with a center-fed
driven element. It consists of two metal conductors of rod or wire, oriented parallel and
collinear with each other (in line with each other), with a small space between them. The
radio frequency voltage is applied to the antenna at the center, between the two
conductors. These antennas are the simplest practical antennas from a theoretical point of
The book addresses practical engineering issues that antenna professionals have to deal with. It explains the immediate demands for existing systems; discusses the antenna technology for the latest and emerging applications, and gives comprehensive coverage of hot topics in the wireless industry. Issues including design considerations, engineering design, measurement setup and methodology, and practical applications are all covered in depth.
THE ELECTRICAL ENGINEERING AND APPLIED SIGNAL PROCESSING SERIES Edited by Alexander Poularikas
The Advanced Signal Processing Handbook: Theory and Implementation for Radar, Sonar, and Medical Imaging Real-Time Systems Stergios Stergiopoulos The Transform and Data Compression Handbook K.R. Rao and P.C. Yip Handbook of Multisensor Data Fusion David Hall and James Llinas Handbook of Neural Network Signal Processing Yu Hen Hu and Jenq-Neng Hwang Handbook of Antennas in Wireless Communications Lal Chand Godara Noise Reduction in Speech Applications Gillian M.
AD HOC NETWORKS: Technologies and Protocols is a concise in-depth treatment of various constituent components of ad hoc network protocols. It reviews issues related to medium access control, scalable routing, group communications, use of directional/smart antennas, network security, and power management among other topics. The authors examine various technologies that may aid ad hoc networking including the presence of an ability to tune transmission power levels or the deployment of sophisticated smart antennae. ...
This book covers the most recent advances concerning the ability to overcome connectivity
limitations and extend the link capacity of vehicular systems. Ranging from the
advances on radio access technologies to intelligent mechanisms deployed to enhance
cooperative communications, cognitive radio and multiple antenna systems have been
given particular highlight.
Most antenna engineers are likely to believe that antennas are one technology that is more or less impervious to the rapidly advancing semiconductor industry. However, as demonstrated in this lecture, there is a way to incorporate active components into an antenna and transform it into a new kind of radiating structure that can take advantage of the latest advances in analog circuit design
Novel generation wireless system is a packet switched wireless system with wide area
coverage and high throughput. It is designed to be cost effective and to provide high spectral
efficiency . The 4th wireless uses Orthogonal Frequency Division Multiplexing, Ultra Wide
Radio Band and millimeter wireless and smart antenna. Highly directive, planar UWB
antennas are gaining more and more attention, as required in many novel and important
The research, simulation and design dual band antenna which operates at 900MHz and 2.45GHz are conducted. FR4-epoxy substrate is chosen with thickness h = 1.5mm, εr = 4.4. Dual band can be achieved by using different methods of impedance’s matching for single antenna which is originally designed at 900MHz. Some dual band RFID structures are discussed in this paper.
This book deal with the modern developing of microwave and millimeter wave technologies.
The first chapter is aimed at describing the evolution of technological processes for the design
of passive functions in millimetre-wave frequency range. From the results HR SOI seems to
be a good candidate in the coming year to address both low cost and low power mass market
CMOS digital and RF/ MMW applications.
This paper concentrates on studying, designing and manufacturing a dual – band and high – bandwidth antenna applied for advance mobile handsets. This antenna can work in GSM/UMTS bands by generating two resonant modes of 900 MHz and 1900 MHz frequencies. Antenna is printed on FR4 substrate with size of 58 mm x 80 mm, thickness of 1.6 mm and relative permittivity of 4.4. The propose antenna is experimentally studied. Keywords: Antenna, dual-band, monopole, microstrip antenna.
Hello, in this module we are going to discuss wireless networking. Specifically, we'll take a look at
how wireless technology works, how it is commonly deployed, and the security issues associated
with using it. Because wireless communications can penetrate opaque objects such as buildings, the
risk of someone accessing a private network increases markedly. With wireless, an attacker does not
need to gain access to physical cables or jacks, but only needs to have an antenna and be within
range of the transmissions....
This book provides a comprehensive introduction to the underlying theory, design techniques and analytical tools of wireless communications, focusing primarily on the core principles of wireless system design. The book begins with an overview of wireless systems and standards. The characteristics of the wireless channel are then described, including their fundamental capacity limits. Various modulation, coding, and signal processing schemes are then discussed in detail, including state-of-the-art adaptive modulation, multicarrier, spread spectrum, and multiple antenna techniques....
The Digivance® product line with FLEX technology has many features and
functions made possible by its use of a digital platform. This white paper
describes the distinct advantages of Digivance when contrasted with legacy
analog fiber repeaters. Topics covered include: Benefits of Digital Over Analog
Fiber Backhauls; Benefits of Digitizing RF signals; Interference Protection; and
The Deep Space Communications and Navigation Systems Center of
Excellence (DESCANSO) was established in 1998 by the National Aeronautics
and Space Administration (NASA) at the California Institute of Technology’s
Jet Propulsion Laboratory (JPL). DESCANSO is chartered to harness and
promote excellence and innovation to meet the communications and navigation
needs of future deep-space exploration.
Mobile and Wireless Communications have been one of the major revolutions of the late
twentieth century. We are witnessing a very fast growth in these technologies where mobile
and wireless communications have become so ubiquitous in our society and indispensable
for our daily lives. The relentless demand for higher data rates with better quality of services
to comply with state-of-the art applications has revolutionized the wireless communication
field and led to the emergence of new technologies such as Bluetooth, WiFi, Wimax, Ultra
An automobile was seen as a simple accessory of luxury in the early years of the past
century. Therefore, it was an expensive asset which none of the common citizen could
afford. It was necessary to pass a long period and waiting for Henry Ford to establish
the first plants with the series fabrication. This new industrial paradigm makes easy to
the common American to acquire an automobile, either for running away or for
This volume, derived from the Handbook of Engineering Electromagnetics (2004), is
intended as a desk reference for the fundamentals of engineering electromagnetics.
Because electromagnetics provides the underpinnings for many technological fields such
as wireless communications, fiber optics, microwave engineering, radar, electromagnetic
compatibility, material science, and biomedicine, there is a great deal of interest and need
for training in the concepts of engineering electromagnetics.