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  • 1
    Electronic Resource
    Electronic Resource
    The boundary-residual method for three-dimensional homogeneous field problems with boundaries of arbitrary geometry (1989)
    Springer
    International journal of infrared and millimeter waves 10 (1989), S. 1007-1032 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Boundary-residual methods are extended to include three-dimensional homogeneous field problems applicable to millimeter-wave problems. Their connection to pointmatching methods is shown, and the reason why pointmatching fails and boundary residual methods do not is explained. A numerical example is used to demonstrate the validity of these methods. A discussion of the limitations of these methods is also included.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010395
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A unified approach to the effects of symmetry and periodicity on boundary-value problems (1992)
    Springer
    International journal of infrared and millimeter waves 13 (1992), S. 229-250 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A generalized approach to the effects of symmetry and periodicity on boundary-value problems is presented, especially as it pertains to the guiding structures encountered in electromagnetics. Several examples of structures and their dispersion behavior are given, and the theory predicts well that other authors claim.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010656
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Backward-wave interaction using step periodic structures (1988)
    Springer
    International journal of infrared and millimeter waves 9 (1988), S. 609-629 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Periodicities introduced into hollow waveguides with step and turn symmetry are shown to have characteristics useful for backward-wave interaction in microwave electron tubes. Using Floquet's theorem, it is shown that the modes of a hollow waveguide can be shifted in phase over one period of the structure. Interaction with the shifted backward-wave mode is then possible over a range of frequencies. A gyrotron backward-wave oscillator is particularly suited to this structure; the interaction could be magnetically tuned over a range of frequencies, while a low phase constant is maintained. A lower phase constant allows the electron beam to interact coherently with the backward wave over longer distances, since any velocity spread in the electron beam forces some of the electrons to be out of step with the backward wave, thus reducing efficiency. A solid waveguide has the added advantages of being easily built for high frequencies and rugged for high temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013414
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Numerical aspects of the boundary residual method (1990)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal of Numerical Modelling: Electronic Networks, Devices and Fields 3 (1990), S. 57-71 
    Details
    ISSN: 0894-3370
    Keywords: Engineering ; Electrical and Electronics Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: The boundary residual method is a powerful technique for solving EM boundary-value problems. This technique produces matrices difficult to solve using many of the standard numerical techniques. This paper discusses lesser-known numerical aspects of this method, and it shows efficient and well-conditioned methods to solve both the homogeneous and non-homogeneous boundary residual problem.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jnm.1660030107
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    Paper (German National Licenses)
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