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IEEE Antennas and Propagation Magazine

Issue 3 • June 2008

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Displaying Results 1 - 25 of 61
  • Front cover - IEEE Antennas and Propagation Magazine

    Publication Year: 2008, Page(s): 1
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  • Table of contents

    Publication Year: 2008, Page(s): 3
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  • Information for contributors

    Publication Year: 2008, Page(s): 4
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  • Magazine Staff

    Publication Year: 2008, Page(s):5 - 6
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  • AP-S Officers and Administrative Committee

    Publication Year: 2008, Page(s): 7
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  • Editor's comments

    Publication Year: 2008, Page(s):8 - 233
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  • President's Message

    Publication Year: 2008, Page(s):8 - 9
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  • 2008 AP-S Memebership Form

    Publication Year: 2008, Page(s): 10
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  • New Insight into the Classical Macdonald Physical Optics Approximation

    Publication Year: 2008, Page(s):11 - 20
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5678 KB) | HTML iconHTML

    The physical optics approximation is widely used in analysis of antennas and scattering problems for electromagnetic and acoustic waves. The present paper investigates the nature of this classical approximation. It is shown that the scattered field in this approximation can be separated into two parts: the reflected field, containing all reflected rays and beams, and the shadow radiation, responsi... View full abstract»

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  • Getting the Magazine by Air Freight, Changes of Address or Delivery Problems

    Publication Year: 2008, Page(s): 20
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  • A Look at the Concept of Channel Capacity from a Maxwellian Viewpoint

    Publication Year: 2008, Page(s):21 - 50
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24590 KB) | HTML iconHTML

    Wireless communication is an active area of current research in communication technology. To assess the performance of a wireless system, one needs to quantify its ability to handle information. Typically, the performance of such systems is characterized in terms of the channel capacity. In this article, we look at the various mathematical representations of the channel capacity, and trace how the... View full abstract»

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  • Memeber of the Research Staff

    Publication Year: 2008, Page(s): 50
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  • Cellular-Phone and Hearing-Aid Interaction: An Antenna Solution

    Publication Year: 2008, Page(s):51 - 65
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9145 KB) | HTML iconHTML

    With the introduction of digital cellular phones, hearing-aid users have experienced a severe buzzing noise caused by the interaction between digital cellular phones and hearing aids. The cellular-phone industry, the hearing-aid industry, and consumers have been seeking a solution for the interference issue. Efforts reported in the literature have focused on measurements, modeling, and evaluation ... View full abstract»

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  • Radiation Efficiency of Nano-Radius Dipole Antennas in the Microwave and Far-infrared Regimes

    Publication Year: 2008, Page(s):66 - 77
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7764 KB) | HTML iconHTML

    At microwave and far-infrared frequencies, the radiation efficiency of a wire antenna with a radius value smaller than a few hundred nanometers is very low, due to large wire impedances and associated high ohmic losses. However, with the continued miniaturization of electronic devices, nano-radius interconnects and antennas are desirable. In this work, the relationships among wire radius, conducti... View full abstract»

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  • Radiation of High-Gain Cavity-Backed Slot Antennas Through a Two-Layer Superstrate

    Publication Year: 2008, Page(s):78 - 87
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6057 KB) | HTML iconHTML

    The radiation of cavity-backed slot (CBS) antennas through a two-layer superstrate is studied in this paper. A novel transmission-line model is proposed to explain the gain-enhancement effect of the superstrate on cavity-backed slot antennas. Experimental result showed that a single cavity-backed slot antenna can achieve a high gain of 16.7 dBi through a properly designed superstrate, and this gai... View full abstract»

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  • Electrically Small Spheroidal Loops Wound on Hollow Ferrite Cores

    Publication Year: 2008, Page(s):88 - 94
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3923 KB) | HTML iconHTML

    The complete electrical properties of a small loop wound on a hollow spheroidal ferrite core are calculated using quasistatic theory. Closed-form expressions are derived for all of the elements of an equivalent circuit. It is shown that not only may the bandwidth be increased by the use of a ferrite core, but also that by redistributing the same volume of ferrite over a slightly larger spheroid as... View full abstract»

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  • Call for Papers

    Publication Year: 2008, Page(s):96 - 97
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  • Chapter News

    Publication Year: 2008, Page(s):98 - 99
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  • AP-S Distinguished Lecturer Program for 2007-2009

    Publication Year: 2008, Page(s): 100
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  • National Radio Science Meeting

    Publication Year: 2008, Page(s):102 - 103
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  • Design Formula for Sierpinski Gasket Pre-Fractal Planar-Monopole Antennas [Antenna Designer's Notebook]

    Publication Year: 2008, Page(s):104 - 107
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2443 KB) | HTML iconHTML

    An improved formula for determination of resonant frequencies in different Sierpinski modes is developed from other existing formulas, using physical and analytical reasoning. The superiority of the proposed formula over other existing formulas is verified by comparing the results with those from experiments and simulations. A design formula for the side length of the generating Sierpinski triangl... View full abstract»

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  • A Low-Power High-Sensitivity X-Band Rail SAR Imaging System [Measurement's Corner]

    Publication Year: 2008, Page(s):108 - 115
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4805 KB) | HTML iconHTML

    Wideband radar imaging with range gating and high sensitivity can be achieved with the use of low-cost commercially available narrowband IF filters. Such filters reduce the effective receiver noise bandwidth of the radar system. This allows for high sensitivity, comparable to that of single-sideband radio receivers, while at the same time acquiring de-chirped wide-band received waveforms. A carefu... View full abstract»

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  • Waveform Diversity & Design Conference

    Publication Year: 2008, Page(s): 118
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  • Reviews and Abstracts [review of Antenna Engineering Handbook (Volakis, J.L., Ed.; 2007)]

    Publication Year: 2008, Page(s):119 - 126
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  • First Call For Papers

    Publication Year: 2008, Page(s): 128
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Aims & Scope

IEEE Antennas and Propagation Magazine actively solicits feature articles that describe engineering activities taking place in industry, government, and universities

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Meet Our Editors

Editor-in-Chief
Mahta Moghaddam