Synthesis of Six-Conductors Symmetrically Coupled Microstrip Line, Operating in a Normal Mode

Abstract

Synthesis technique of six-conductor symmetrically coupled microstrip multiconductor line (MMCL), operating in a normal mode, is presented in this article. Results of the calculations acquired using the proposed mathematical model of an MMCL differ only by 3 % from the results acquired by other researchers. Examples of synthesis of six-conductor symmetrically coupled MMCL, operating in the even- and odd normal modes, are submitted in the article, also, dependences of parameters of these lines are investigated. It was established that the external conductors of an MMCL impart the most for ensuring the normal mode in an MMCL, and the organization of the internal conductors remains regular in this case. It is shown that parameters of the synthesized MMCL operating in the even normal mode depend in greater degree on the space between conductors, than MMCL operating in the odd normal mode. Ill. 7, bibl. 27, tabl. 2 (in English; abstracts in English and Lithuanian).http://dx.doi.org/10.5755/j01.eee.110.4.285

Effect of Non-Uniformity of the Multiconductor Line Constructional Parameters on the Frequency Characteristics of the Meander Microstrip Delay Line / Daugialaidės Linijos Parametrų Netolygumų Įtaka Meandrinių Vėlinimo Linijų Dažninėms Charakteristikoms

“…Apibendrinta MMVL sandara pateikta 1 pav. (Pomarnacki, Krukonis 2011) arba tolygios efektyviosios dielektrinės skvarbos ε r efi = ε r efj (Mikučionis, Urbanavičius 2011) DLML. Remiantis sintezuotųjų DLML konstrukciniais parametrais, Sonnet ® elektrodinaminių įtaisų modeliavimo terpėje sukuriami atitinkamų MMVL kompiuteriniai modeliai ir randamos jų dažninės charakteristikos.…”

“…Toks efektyviosios skvarbos netolygumas veikia vėlinimo linijos charakteristikas, tarp jų vėlinimo trukmę ir pralaidumo juostą (6 pav.). Siekiant suvienodinti efektyviąsias dielektrines skvarbas sinfazinei modai, galiniai DLML laidininkai turi būti platesni už vidinius (Mikučionis, Urbanavičius 2011). Tačiau platesnių laidininkų charakteringieji impedansai labai skiriasi nuo likusiųjų laidininkų ir kitų perdavimo linijų charakteringųjų impedansų, todėl linija tampa nesuderinta.…”

The Influence of Non-Uniformity of the Multi-Conductor Line Parameters on Frequency Responses of the Meander Delay Line

“…Side conductors of the MCML should be wider than the inner ones in order to make its effective permittivity equal in all strips (i.e. to ensure the operation of even mode) [19]. However, characteristic impedance of such wide conductors differs significantly from the impedance of the regular part of the MCML as well as the rest of the signal transmission path, resulting in mismatch of the MMDL.…”

“…The technique used to investigate the influence of nonuniformity of the MCML parameters on responses of the MMDL is further described. MCML of uniform characteristic impedance Z i = Z j [18], or MCML of uniform effecttive permittivity ε r eff i = ε r eff j [19] is synthesized by employing algorithms created by authors. Further, the corresponding MMDL is created in Sonnet® software environment, using dimensions of the synthesized MCML, and responses of this MMDL are calculated.…”

Synthesis of Multiconductor Microstrip Lines Operating in Normal Modes / Daugialaidės Mikrojuostelinės Linijos, Veikiančios Normaliųjų Bangų Režimu, Sintezė

“…This technique exhibits rather fast computational efficiency and good accuracy. The accuracy of the mathematical model of the MCML has been checked to be correct in earlier works (Mikučionis, Urbanavičius 2011).…”