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Mode-matching Technique (mode-matching + technique)

Distribution by Scientific Domains
Engineering100%

Selected Abstracts

Full-wave modeling and optimization of Bøifot junction ortho-mode transducers

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 4 2008
Jorge A. Ruiz-Cruz
Abstract The full-wave design of broadband ortho-mode transducers based on the Bøifot junction has two main aspects: an efficient analysis method and a design process divided into tasks with relatively low computational effort. In the analysis part, a rigorous mode-matching technique has been developed to obtain the generalized admittance matrix of the Bøifot junction. The other elements of the device are also analyzed by mode-matching. With respect to the design, the proposed procedure starts with the optimization of the individual building blocks of the device. Their interaction is also taken into account in a systematic process. The analysis and design methods have been validated with other numerical methods and an experimental prototype. © 2008 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2008. [source]

Low-spurious-response coaxial-line BPF with saucer-loaded stepped-impedance resonators designed with mode-matching technique

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 3 2004
Hiromitsu Uchida
Abstract A novel stepped-impedance resonator with a thin metal saucer is proposed in order to reduce spurious-response levels in a coaxial-line bandpass filter (BPF). In designing the BPF, the mode-matching technique is employed for fast and accurate calculation of coaxial-line discontinuities. A prototype BPF obtains a spurious-response level of less than ,55 dB in the frequency band from 2f0 to 9f0, where f0 is the pass-band center frequency. © 2004 Wiley Periodicals, Inc. Int J RF and Microwave CAE 14: 227,235, 2004. [source]

Capacitance of axially slotted coaxial cable

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, Issue 4 2006
Dong H. Kim
Abstract The electrostatic potential problem of an axially slotted coaxial cable is solved. A mode-matching technique is used to obtain a set of simultaneous equations for the modal coefficients. The behavior of electrostatic potential distribution and capacitance is presented in terms of slotted coaxial cable geometries. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 825,827, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21486 [source]