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IEEE Antennas and Propagation Magazine

Issue 3 • Date June 2003

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Displaying Results 1 - 25 of 26
  • A survey of various propagation models for mobile communication

    Publication Year: 2003, Page(s):51 - 82
    Cited by:  Papers (233)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2342 KB) | HTML iconHTML

    In order to estimate the signal parameters accurately for mobile systems, it is necessary to estimate a system's propagation characteristics through a medium. Propagation analysis provides a good initial estimate of the signal characteristics. The ability to accurately predict radio-propagation behavior for wireless personal communication systems, such as cellular mobile radio, is becoming crucial... View full abstract»

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  • Best Chapter Award

    Publication Year: 2003, Page(s): 96
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    Freely Available from IEEE
  • Canonical problems in scattering and potential theory. Part 1: Canonical structures in potential theory. Part II: Acoustic and electromagnetic diffraction by canonical structures [Book Review]

    Publication Year: 2003, Page(s): 120
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    Freely Available from IEEE
  • The red and gray notebooks

    Publication Year: 2003, Page(s):130 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (282 KB) | HTML iconHTML

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  • In Memoriam: K.C. Yoh

    Publication Year: 2003, Page(s):135 - 136
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    Freely Available from IEEE
  • From the screen of Stone

    Publication Year: 2003, Page(s):142 - 149
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  • 2003 IEEE Electromagnetics Award

    Publication Year: 2003, Page(s): 164
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  • 2003 Distinguished Achievement Award

    Publication Year: 2003, Page(s): 164
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  • 2003 Chen-To Tai Distinguished Educator Award

    Publication Year: 2003, Page(s): 164
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  • 2003 S. A. Scheikunoff Transactions Prize Paper Award

    Publication Year: 2003, Page(s): 164
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  • 2003 H. A. Wheeler Applications Prize Paper Award

    Publication Year: 2003, Page(s): 164
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  • 2003 R. W. P. King Prize Paper Award

    Publication Year: 2003, Page(s): 164
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  • 2003 Outstanding Service Award

    Publication Year: 2003, Page(s): 164
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  • Determination of small-entity status under US patent law

    Publication Year: 2003, Page(s):172 - 180
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (626 KB)

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  • A discussion on the significance of geometry in determining the resonant behavior of fractal and other non-Euclidean wire antennas

    Publication Year: 2003, Page(s):9 - 28
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1286 KB) | HTML iconHTML

    Fractal-shaped wire antennas have been shown to exhibit resonance compression and multi-band behavior that has primarily been attributed to the space-filling properties of the fractal geometry. Exhibiting a lower resonant frequency than a same-sized Euclidean antenna, fractal-shaped antennas can be made smaller than a Euclidean antenna that is resonant at the same frequency. While numerous fractal... View full abstract»

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  • Optimal discrete-amplitude excitations for arrays feeding a parabolic antenna receiving from off-axis satellites

    Publication Year: 2003, Page(s):186 - 191
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (479 KB) | HTML iconHTML

    One relatively inexpensive setup for domestic reception of signals from two or more satellites is to use a conventional offset parabolic reflector fed by suitably placed off-axis arrays. In this paper, we show that the peak gain attainable using arrays with element-excitation amplitudes restricted to two or three values provided by a cascade of 3 dB power dividers can be as little as a few tenths ... View full abstract»

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  • Air Force Research Laboratory advanced compact range RCS uncertainty analysis for a general target

    Publication Year: 2003, Page(s):195 - 201
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (445 KB) | HTML iconHTML

    A calibration uncertainty analysis was conducted for the Air Force Research Laboratory's (AFRL's) Advanced Compact Range (ACR) in 2000. This analysis was a key component of the Radar Cross Section (RCS) ISO-25 (ANSI-Z-540) Range Certification Demonstration Project. The scope of the RCS uncertainty analysis for the demonstration project-was limited to calibration targets. Since that time, we have i... View full abstract»

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  • Expansion of existing EM workbench for multiple computational electromagnetics codes

    Publication Year: 2003, Page(s):122 - 127
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    An "EM workbench" is described. It has a modular, code-independent architecture and a common design environment. The technique for integrating new EM codes is demonstrated with a method-of-moments code specialized for circularly symmetric feed horns, and with a new hybrid DFT-MoM (discrete Fourier transform - method of moments) code for finite-boundary planar phased arrays. The use of a common des... View full abstract»

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  • Two-port model of an antenna for use in characterizing wireless communications systems, obtained using efficiency measurements

    Publication Year: 2003, Page(s):115 - 118
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    The agreement in these efficiency measurements validates the accuracy of the Satimo range, while highlighting the simplicity of the Wheeler cap. When one needs pattern data or the efficiency of an antenna in the presence of a surrogate hand and head, then a spherical near-field range, such as the Satimo system, is necessary. However, it is seen that a network analyzer and a Wheeler cap are suffici... View full abstract»

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  • Designing classical offset inverse-Cassegrain dual-reflector antennas from combinations of prescribed geometric parameters

    Publication Year: 2003, Page(s):102 - 108
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (390 KB) | HTML iconHTML

    This paper proposes a simple procedure for the design of classical offset inverse-Cassegrain dual-reflector antennas from combinations of prescribed geometric parameters. We will provide a list of 21 parameters from which the antenna system is fully characterized. However, only five of these parameters need to be provided by the antenna designer as the remaining 16 parameters can be calculated in ... View full abstract»

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  • Biological bases of current guidelines for human exposure to radio-frequency radiation

    Publication Year: 2003, Page(s):182 - 184
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (343 KB) | HTML iconHTML

    There are two different sets of guidelines promulgated for limiting human exposure to radio-frequency (RF) radiation, worldwide. Nevertheless, there is a persistent, publicly expressed lack of confidence in RF-exposure standards, pertaining to the maximum permissible exposure (MPE) levels. The biological rationales adopted for the IEEE and ICNIRP guidelines for limiting localized exposures are con... View full abstract»

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  • Comparison of monostatic and bistatic radar images

    Publication Year: 2003, Page(s):41 - 50
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (610 KB) | HTML iconHTML

    Relationships between monostatic and bistatic radar images are reviewed and discussed, both from the point of view of identical receiver locations, and from the conventional point of view where the monostatic radar is located at the angular bisector between the bistatic transmitter and receiver. Example images are computed using scattered fields from two three-dimensional (3D) body-of-revolution (... View full abstract»

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  • A comment on the radiation resistance

    Publication Year: 2003
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (182 KB)

    For original paper see ibid., vol. 44, no. 5, p. 98-101 (2002). States that the second expression for the radiation resistance, developed with the help of Mahony's comments [2003], has some advantages, being more concise analytically and having more stable and rapidly convergent behavior numerically. View full abstract»

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  • Aperture theory and the equivalence principle

    Publication Year: 2003, Page(s):29 - 40
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB) | HTML iconHTML

    Aperture theory in antenna courses is a topic that is usually dealt with fairly superficially at undergraduate and graduate levels. The paper takes a fresh look at aperture theory and its relationship to the equivalence principle. Some subtleties and possible misconceptions are discussed. Emphasis is placed on the mathematical analysis of the process by which the aperture is short-circuited, and t... View full abstract»

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  • Teaching and learning combined (TLC)

    Publication Year: 2003, Page(s):166 - 167
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (241 KB)

    Discusses Teaching and Learning Combined (TLC). TLC is how professors learn, so it makes sense that students can learn that way, too!. View full abstract»

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

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Editor-in-Chief
Mahta Moghaddam