IEEE Antennas and Propagation Magazine

Volume 38 Issue 2 • April 1996

Filter Results

Displaying Results 1 - 10 of 10
  • An Introduction to Optimization

    Publication Year: 1996
    Cited by:  Papers (9)
    Request permission for commercial reuse | PDF file iconPDF (170 KB)
    Freely Available from IEEE
  • Electromagnetic Pulse Propogation in Causal Dielectircs

    Publication Year: 1996
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (253 KB)

    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.
  • Cross-polarization tolerance requirements of square microstrip patches

    Publication Year: 1996, Page(s):56 - 58
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    We normally feed a rectangular patch along the centerline of the H-plane (the non-resonant width). This is done to eliminate excitation of the patch in a mode along the other axis. The second mode radiates cross polarization. This article provides the tolerance requirements, given the cross polarization. The rectangular microstrip patch radiates its peak cross polarization in the diagonal planes, ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the PML concept: a view from the outside

    Publication Year: 1996, Page(s):48 - 51
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The idea that an absorbing half space can be reflectionless is most intriguing. We present an exposition of the wave theory using impedance concepts. Some limitations are also mentioned. The PML (perfectly matched layer) has received considerable attention lately. The idea is not entirely new, because the concept of “invisible scatterers” was put forth over twenty years ago. The idea t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Radio sociology [noise investigation]

    Publication Year: 1996, Page(s):45 - 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    The article discusses the use of radio telemetry in wildlife research. An aircraft was used to locate a migrating, radio-tagged, sharp-shinned hawk. A 222 MHz four-element Yagi receiving antenna was clamped to the entrance step on the right side of the aircraft, so that it pointed in the direction normal to the direction of flight. The idea was to climb to an appropriate altitude, and fly in large... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spherical-multipole analysis of electromagnetic and acoustical scattering by a semi-infinite elliptic cone

    Publication Year: 1996, Page(s):33 - 44
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB)

    The spherical-multipole analysis of scalar scattering by an acoustically soft or hard elliptic cone, and of electromagnetic scattering by a perfectly conducting elliptic cone, are presented. The series expansions of the exact solutions are of poor convergence, if both source and field points are far from the cone's tip. A mathematical transformation for the acceleration of convergence-due to Euler... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Modeling effective properties of chiral composites

    Publication Year: 1996, Page(s):22 - 32
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1280 KB)

    After a brief overview of the concepts of electromagnetic chirality and wave propagation in chiral media, this paper deals with the field of microwave-chiral-material modeling. First, studies regarding the scattering of single-chiral or non-chiral elements with different shapes (various designs of helices, Ω-shaped scatterers, wires, and loops) are presented. Results of the backscattered fie... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some European satellite-antenna developments and trends

    Publication Year: 1996, Page(s):9 - 21
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3420 KB)

    The environment, as well as the mass and available power limitations specific to space missions, add special constraints. These lead to the use of exotic low-mass, high-stability materials, with advanced mechanical and thermal designs. Also, antenna front ends must be tailored for optimum efficiency and power handling. Researchers and engineers in universities, research institutes, and industrial ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The microwave point of view on software validation

    Publication Year: 1996, Page(s):68 - 71
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    Validation generally consists of a “Good Agreement Between Measured And Calculated” (GABMAC) plot. Unfortunately, when one looks at microwaves-related papers, error bars are rarely plotted on measured data, and quantitative estimates of error are typically absent. Further, convergence analyses, if performed, are rarely mentioned, and test structures are not checked for sensitivity to a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Error estimation for numerical differential equations

    Publication Year: 1996, Page(s):71 - 76
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    Given a capable human being and a computer, it is possible to make an approximation to the solution of a nonlinear differential equation. However, under the (usually correct) assumption that the equation is analytically intractable, the result of the computation is not the exact solution; indeed it may be so far from the exact solution as to be completely useless. We are interested in the relation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

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