scholarly journals Effect Of Non-Uniformity Of The Multiconductor Line Constructional Parameters On The Frequency Characteristics Of The Meander Microstrip Delay Line

2014 ◽  
Vol 6 (2) ◽  
pp. 211-217
Author(s):  
Audrius Krukonis ◽  
Šarūnas Mikučionis
2014 ◽  
Vol 6 (2) ◽  
pp. 211-217
Author(s):  
Audrius Krukonis ◽  
Šarūnas Mikučionis

Inhomogeneities of the electromagnetic field are observed at the edges of the electrodynamic delay systems which are designed based on the concept of infinite periodic multiconductor line. The influence of non-uniformity of characteristic impedance and effective permittivity of the multiconductor microstrip line on the frequency responses and characteristics of meander microstrip delay lines is studied in this paper. It is shown that aligning characteristic impedance and effective permittivity of the multiconductor line the bandwidth of the delay line can be significantly extended. Elektrodinaminių įtaisų, grįstų periodinių daugialaidžių linijų struktūra, kraštuose ir galuose pastebimi elektromagnetinių laukų netolygumai. Straipsnyje nagrinėjama charakteringojo impedanso ir efektyviosios dielektrinės skvarbos netolygumo įtaka meandrinių mikrojuostelinių vėlinimo linijų dažninėms charakteristikoms. Parodyta, kad suvienodinus daugialaidės linijos laidininkų charakteringuosius impedansus arba efektyviąsias dielektrines skvarbas galima praplėsti vėlinimo linijos pralaidumo juostą.


1970 ◽  
Vol 108 (2) ◽  
pp. 19-22 ◽  
Author(s):  
A. Katkevicius ◽  
S. Staras

Influence of transverse asymmetry of meander systems on their frequency characteristics and rejection properties is considered. The model of the systems based on the multiconductor line method is used. Examples of calculated characteristics are presented. Properties of non-homogeneous meander structures, asymmetrical with respect to the longitudinal plane perpendicular to the central part of the system, are revealed. In the meander system containing electrodes with wide central parts of meander conductors and narrowed peripheral parts, the stop-band appears at q = p where q is the phase angle between voltages or current on neighbor conductors. At transverse asymmetry, the period of inhomogeneities along the meander conductor becomes two times greater with respect to the period of inhomogeneities at absence of transverse asymmetry, wherefore input impedance rapidly changes and the stop-band appears when phase angle q approaches to p/2. Increase of variation of characteristic impedances Z(0) or Z(0) or Z(p) followed by increase of the width of the stop-band. Ill. 5, bibl. 14, tabl. 3 (in English; abstracts in English and Lithuanian).http://dx.doi.org/10.5755/j01.eee.108.2.136


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