Scheduled Maintenance on March 25th, 2017:
Single article purchases and IEEE account management will be unavailable from 4:00 AM until 6:30 PM (ET). We apologize for the inconvenience.
By Topic

IEEE Antennas and Propagation Magazine

Issue 4 • Aug. 2007

Filter Results

Displaying Results 1 - 25 of 67
  • Front cover - IEEE Antennas and Propagation Magazine

    Publication Year: 2007, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (634 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 2007, Page(s): 3
    Request permission for commercial reuse | PDF file iconPDF (825 KB)
    Freely Available from IEEE
  • Information for Contributors

    Publication Year: 2007, Page(s): 4
    Request permission for commercial reuse | PDF file iconPDF (804 KB)
    Freely Available from IEEE
  • Magazine Staff

    Publication Year: 2007, Page(s):5 - 6
    Request permission for commercial reuse | PDF file iconPDF (1297 KB)
    Freely Available from IEEE
  • AP-S Officers and Administrative Committee

    Publication Year: 2007, Page(s): 7
    Request permission for commercial reuse | PDF file iconPDF (602 KB)
    Freely Available from IEEE
  • Editor's Comments

    Publication Year: 2007, Page(s):238 - 241
    Request permission for commercial reuse | PDF file iconPDF (3268 KB) | HTML iconHTML
    Freely Available from IEEE
  • President's Message

    Publication Year: 2007, Page(s):8 - 9
    Request permission for commercial reuse | PDF file iconPDF (1481 KB) | HTML iconHTML
    Freely Available from IEEE
  • 2008 IEEE International Symposium on Antennas and Propagation - Call for papers

    Publication Year: 2007, Page(s): 10
    Request permission for commercial reuse | PDF file iconPDF (821 KB)
    Freely Available from IEEE
  • Instructions for AP-S and URSI Authors

    Publication Year: 2007, Page(s): 11
    Request permission for commercial reuse | PDF file iconPDF (1053 KB)
    Freely Available from IEEE
  • The 2006 Update of the AP-S Digital Archive

    Publication Year: 2007, Page(s): 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (575 KB) | HTML iconHTML

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Incremental Far Field and Degrees of Freedom of the Sinusoidal Current Filament

    Publication Year: 2007, Page(s):13 - 21
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5786 KB) | HTML iconHTML

    From where radiation originates for a specified current source or PEC boundary seems not to be as well-understood or agreed-upon as many other aspects of electromagnetics. Two propositions are explored in this article that relate to this issue. One is that if some incremental portion of a source distribution increases (changes) the total far field at any observation angle, then by definition radia... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Investigations into Operation of Single- and Multi-Layer Configurations of Planar Inverted-F Antenna

    Publication Year: 2007, Page(s):22 - 33
    Cited by:  Papers (29)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8420 KB) | HTML iconHTML

    The paper presents a tradeoff analysis between single- and multi-layer (stacked) configurations of a planar inverted-F antenna (PFIA) of fixed overall height, with respect to achieving multi-band operation. The investigations focus on two bands, 800 to 1000 MHz and 1700 to 2600 MHz, which cover a frequency spectrum allocated to most of the present-day wireless systems operating below 2600 MHz. Fol... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Particle-Swarm Optimization in Antenna Design: Optimization of Log-Periodic Dipole Arrays

    Publication Year: 2007, Page(s):34 - 47
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8855 KB) | HTML iconHTML

    This paper presents a short tutorial and overview of optimization algorithms based on particle-swarm schemes, and their application to solving electromagnetic problems. As a practical example, a particle-swarm optimization (PSO) tool has been applied in conjunction with the Numerical Electromagnetics Code (NEC) to get the design curves of optimized log-periodic dipole arrays (LPDAs). The graphs sh... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • To All IEEE Life Members

    Publication Year: 2007, Page(s): 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB) | HTML iconHTML

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Element Efficiency: A Unifying Concept for Array Antennas

    Publication Year: 2007, Page(s):48 - 56
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4759 KB) | HTML iconHTML

    The antenna-element efficiency parameter quantifies the effect of mutual coupling in array antennas. In general arrays, this efficiency varies from element to element. The average value of these element efficiencies is a significant summary parameter, and plays a prominent role in circumscribing array performance. A useful formula gives the minimum number of antennas necessary to realize a prescri... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low-Cost Broadband Circularly Polarized Printed Antennas and Array

    Publication Year: 2007, Page(s):57 - 64
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4723 KB) | HTML iconHTML

    This paper presents the design, simulation, and measurements of two low-cost broadband circularly polarized (CP) printed antennas: an element and an array at 2 GHz. To realize the broadband circularly polarized antenna element, a circular microstrip patch is electromagnetically coupled by crossed slots cut in the ground plane, which is fed by an L-shaped microstrip feed. Two orthogonal modes in th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Development of a Cellular Phone Antenna with Small Irradiation of Human-Organism Tissues

    Publication Year: 2007, Page(s):65 - 73
    Cited by:  Papers (14)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5345 KB) | HTML iconHTML

    The method put forward here is to reduce undesirable irradiation using an auxiliary radiator of low power. Calculations show that an arrangement with an additional radiator reduces irradiation by a factor of three to four. The structure and magnitude of the field in the far zone preserve their quality of communication with the correspondents (base stations) in all directions. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On Poynting's Theorem and Reciprocity Relations for Discontinuous Fields

    Publication Year: 2007, Page(s):74 - 83
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5130 KB) | HTML iconHTML

    Poynting's theorem and reciprocity relations are investigated, based on the postulate that Maxwell's equations are always valid in the sense of distributions. Three special cases of practical importance in which the fields possess bounded discontinuities on simple (nonmaterial) and material interfaces between two different media are rigorously examined, incorporating the basic properties of the He... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Study of the Dynamics of Large Reflector Antennas with Accelerometers

    Publication Year: 2007, Page(s):84 - 101
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11566 KB) | HTML iconHTML

    The Atacama Large Millimeter Array (ALMA) will consist of up to 64 state-of-the-art sub-mm telescopes, subject to stringent performance specifications that will push the boundaries of the technology, and makes testing of antenna performance a likewise challenging task. Two antenna prototypes were evaluated at the ALMA Test Facility at the Very Large Array site in New Mexico, USA. The dynamic behav... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • AP-S Adcom Minutes

    Publication Year: 2007, Page(s):102 - 109
    Request permission for commercial reuse | PDF file iconPDF (6011 KB)
    Freely Available from IEEE
  • Chapter News

    Publication Year: 2007, Page(s):110 - 113
    Request permission for commercial reuse | PDF file iconPDF (2423 KB) | HTML iconHTML
    Freely Available from IEEE
  • AP-S Distinguished Lecturer Program for 2006-2007

    Publication Year: 2007, Page(s): 114
    Request permission for commercial reuse | PDF file iconPDF (685 KB)
    Freely Available from IEEE
  • 2008 IEEE Antennas and Propagation Society - Membership application

    Publication Year: 2007, Page(s): 115
    Request permission for commercial reuse | PDF file iconPDF (605 KB)
    Freely Available from IEEE
  • Wheeler and Fano Impedance Matching [Antenna designer's notebook]

    Publication Year: 2007, Page(s):116 - 119
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1909 KB) | HTML iconHTML

    A recent series of articles in this Magazine's Antenna Designer's Notebook column highlighted Fano's fundamental work on the limitations of the impedance matching of arbitrary impedances and its application to antenna design. Lopez, using Harold Wheeler's methodology, constructed a closed-form solution to the nonlinear simultaneous equations of Fano. This article presents the Wheeler methodology t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • In Memoriam: Edmond S. "Stan" Gillespie

    Publication Year: 2007, Page(s):120 - 121
    Request permission for commercial reuse | PDF file iconPDF (1006 KB) | HTML iconHTML
    Freely Available from IEEE

Aims & Scope

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

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Mahta Moghaddam