Results 171 to 180 of about 30,584 (199)
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Microstrip-line-fed compact microstrip antenna with broadband operation
IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36194), 2002In order to meet the requirement for mobile or personal communication systems, microstrip antennas with reduced size and broadband operation are of particular interest. Among the various feeding mechanisms, the compact broadband microstrip antennas directly matched to a 50-/spl Omega/ microstrip line are also of importance, for its usefulness in ...
null Kin-Lu Wong, null Yi-Fang Lin
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Large Permittivity Microstrip Line
IETE Journal of Research, 1975The properties of microstrip transmission lines using large permittivity substrates such as Pb0.315 Sr0.685TiO3 are examined extending a recent theory.
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IEEE Transactions on Microwave Theory and Techniques, 1980
This article summarizes state-of-the-art information on losses of single and coupled microstrip lines. Conductor loss, substrate loss (for pure dielectric or magnetic materials), and radiation loss are considered along with the effect of dispersion. Finally, a rough comparison is made between the losses of microstrip and that of several other types of ...
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This article summarizes state-of-the-art information on losses of single and coupled microstrip lines. Conductor loss, substrate loss (for pure dielectric or magnetic materials), and radiation loss are considered along with the effect of dispersion. Finally, a rough comparison is made between the losses of microstrip and that of several other types of ...
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1975 5th European Microwave Conference, 1975
The known design procedures for comb line filters are applicable only to filters using TEM-mode transmission line systems. Synthesis procedures for comb line filters using coupled microstrip transmission lines must take into account the unequality of the phase velocities of the fundamental modes on such a system. Such a method is presented.
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The known design procedures for comb line filters are applicable only to filters using TEM-mode transmission line systems. Synthesis procedures for comb line filters using coupled microstrip transmission lines must take into account the unequality of the phase velocities of the fundamental modes on such a system. Such a method is presented.
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Review of Scientific Instruments, 1970
A simple and inexpensive microstrip transmission line of adjustable length is described. The device, although physically considerably smaller, is electrically similar to the usual coaxial line stretcher and can be fabricated easily from standard printed circuit or microstrip boards.
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A simple and inexpensive microstrip transmission line of adjustable length is described. The device, although physically considerably smaller, is electrically similar to the usual coaxial line stretcher and can be fabricated easily from standard printed circuit or microstrip boards.
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Characteristics of microstrip transmission lines
Journal of Electronics (China), 1990An efficient hybrid field solution to microstrip transmission lines is presented by using SLE and SLM modes in spectral domain. It by-passes the lengthy process of formulating the determinant equation for the unknown propagation constant. Compared with spectral domain admittance approach, this method is clear in both physical and mathematical senses ...
Wu Xiaodong, Lin Weigan
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Cylindrical Substrate Microstrip Line Characterization
IEEE Transactions on Microwave Theory and Techniques, 1987In this article, quasi-static and dynamic solutions are derived for microstrip transmission lines on circularly symmetric cylindrical substrates. Novel numerical techniques have evolved which lead to very efficient algorithms. The model is applicable to substrates of arbitrary thickness and cylinder size.
N.G. Alexopoulos, A. Nakatani
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Tunable fin‐line—microstrip oscillator
Microwave and Optical Technology Letters, 1994AbstractThe frequency of a microstrip oscillator is difficult to tune. A new millimeter‐wave microstrip Gunn oscillator is introduced in this Letter. Consisting of fin line and microstrip with microstrip as the output‐port transmission line, this Gunn oscillator can be mechanically frequency tuned.
Quan Xue +3 more
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Crosstalk between microstrip transmission lines
IEEE Transactions on Electromagnetic Compatibility, 1994Methods for prediction of crosstalk between microstrip transmission lines are reviewed and simplified for the weak-coupling case. Classical coupled transmission line theory is used for uniform lines, and potential and induced EMF methods are used for crosstalk between nonuniform lines.
D.A. Hill, K.H. Cavcey, R.T. Johnk
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Novel microstrip-line directional filters
IEEE Transactions on Microwave Theory and Techniques, 1997This paper presents two new structures of four-port microwave directional filters incorporating microstrip-line resonators, uniplanar 180/spl deg/ phase-reversal units, and two or four identical p-i-n diodes. These filters provide substantially improved frequency characteristics compared to the conventional constructions.
S. Rosloniec, T. Habib
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