Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads

Background and Objectives: Fixed phase shifters on the transmission line are passive devices that provide a constant phase shift between the signals to the outputs of the reference and phase-shifting channels. They are the basic elements of electronic equipment for various functional purposes. One o...

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Main Authors: Korchagin, Alexey I., Meshchanov, Valery P., Sayapin, Kirill Aleksandrovich, Semenchuk, Victor V., Turkin, Yaroslav V., Sherstyukov, Dmitry N.
Format: Article
Language:English
Published: Saratov State University 2021-08-01
Series:Известия Саратовского университета. Новая серия Серия: Физика
Subjects:
Online Access:https://fizika.sgu.ru/sites/fizika.sgu.ru/files/text-pdf/2021/08/264-274_korchagin_i_dr.pdf
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spelling doaj-9f2339b9d8e44c86b696f51534e3e6b52021-09-29T13:49:15ZengSaratov State UniversityИзвестия Саратовского университета. Новая серия Серия: Физика1817-30202542-193X2021-08-0121326427410.18500/1817-3020-2021-21-3-264-274Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loadsKorchagin, Alexey I.0Meshchanov, Valery P.1Sayapin, Kirill Aleksandrovich2Semenchuk, Victor V.3Turkin, Yaroslav V.4Sherstyukov, Dmitry N.5Mytishchinsky Radio Frequency Measuring Instrument Research Institute, 2-a Kolpakova St., Mytishchi 141002, RussiaNIKA-Microwave, Ltd, 66 Moskovskaya St., Saratov 410002, RussiaNIKA-Microwave, Ltd, 66 Moskovskaya St., Saratov 410002, RussiaMytishchinsky Radio Frequency Measuring Instrument Research Institute, 2-a Kolpakova St., Mytishchi 141002, RussiaNIKA-Microwave, Ltd, 66 Moskovskaya St., Saratov 410002, RussiaSaratov State Technical University named after Yuri Gagarin, 77, Politechnicheskaya str., Saratov, 410054, RussiaBackground and Objectives: Fixed phase shifters on the transmission line are passive devices that provide a constant phase shift between the signals to the outputs of the reference and phase-shifting channels. They are the basic elements of electronic equipment for various functional purposes. One of the main tasks of frequency technology is to expand the working range of fixed phase shifters. The aim of this work is the synthesis, mathematical modeling and experimental study of broadband and ultra-wideband fixed phase shifters with a phase-shifting channel based on coupled class II stepped transmission lines loaded with a short-circuited stub. Materials and Methods: Parametric synthesis of fixed phase shifters was carried out in the approximation of TEM-waves. This made it possible to significantly reduce the required computing resources. Optimization was carried out using the simplex method (Nelder – Mead method). Schematic and electrodynamic modeling of the structure was carried out using the AWR Design Environment software package. The measurement of the frequency characteristics of the experimental sample of the phase shifter was carried out using a Rohde & Schwarz ZVA-40 vector network analyzer. Results: For the nominal values of the phase shift φ0 = 45°, 67.5°, 90° and the frequency ranges [f1 , f2 ] with overlap coefficients ϰ = f1/f 2 = 2, 2.5, 3 (for m = 3) and ϰ = 3; 3.5; 4 (for m = 5), the regularities of changes in the electrical lengths and wave impedances of even and odd types of excitation of connected transmission lines, electrical lengths and characteristic impedances of single transmission lines and a stub are established. On the basis of the solutions obtained in the TEM-wave approximation, a fixed phase shifter on a microstrip transmission line was developed for the case of m = 3, φ0 = 90°, ϰ = 3. Its circuitry and electrodynamic modeling was carried out. A prototype phase shifter has been manufactured and tested. The experimentally obtained value of the phase shift is 91° ± 1.5°, the voltage standing wave ratio does not exceed 1.4 in the frequency range 0.6–1.5 GHz. The analysis of the reasons for the deviation of the calculated characteristics from the experimental ones is given. Conclusion: The results obtained open up new possibilities for using loops in the problems of synthesis of functional microwave devices. They can be effectively used as an initial approximation in solving the problems of synthesis of fixed phase shifters of the proposed structure on strip and microstrip transmission lines.https://fizika.sgu.ru/sites/fizika.sgu.ru/files/text-pdf/2021/08/264-274_korchagin_i_dr.pdffixed phase shiftercoupled transmission linesshort-circuited stubmathematical modelingmethod of moments
collection DOAJ
language English
format Article
sources DOAJ
author Korchagin, Alexey I.
Meshchanov, Valery P.
Sayapin, Kirill Aleksandrovich
Semenchuk, Victor V.
Turkin, Yaroslav V.
Sherstyukov, Dmitry N.
spellingShingle Korchagin, Alexey I.
Meshchanov, Valery P.
Sayapin, Kirill Aleksandrovich
Semenchuk, Victor V.
Turkin, Yaroslav V.
Sherstyukov, Dmitry N.
Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
Известия Саратовского университета. Новая серия Серия: Физика
fixed phase shifter
coupled transmission lines
short-circuited stub
mathematical modeling
method of moments
author_facet Korchagin, Alexey I.
Meshchanov, Valery P.
Sayapin, Kirill Aleksandrovich
Semenchuk, Victor V.
Turkin, Yaroslav V.
Sherstyukov, Dmitry N.
author_sort Korchagin, Alexey I.
title Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
title_short Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
title_full Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
title_fullStr Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
title_full_unstemmed Integrated research of the phase-shifting properties of a step structure of class II on connected transmission lines with mismatched loads
title_sort integrated research of the phase-shifting properties of a step structure of class ii on connected transmission lines with mismatched loads
publisher Saratov State University
series Известия Саратовского университета. Новая серия Серия: Физика
issn 1817-3020
2542-193X
publishDate 2021-08-01
description Background and Objectives: Fixed phase shifters on the transmission line are passive devices that provide a constant phase shift between the signals to the outputs of the reference and phase-shifting channels. They are the basic elements of electronic equipment for various functional purposes. One of the main tasks of frequency technology is to expand the working range of fixed phase shifters. The aim of this work is the synthesis, mathematical modeling and experimental study of broadband and ultra-wideband fixed phase shifters with a phase-shifting channel based on coupled class II stepped transmission lines loaded with a short-circuited stub. Materials and Methods: Parametric synthesis of fixed phase shifters was carried out in the approximation of TEM-waves. This made it possible to significantly reduce the required computing resources. Optimization was carried out using the simplex method (Nelder – Mead method). Schematic and electrodynamic modeling of the structure was carried out using the AWR Design Environment software package. The measurement of the frequency characteristics of the experimental sample of the phase shifter was carried out using a Rohde & Schwarz ZVA-40 vector network analyzer. Results: For the nominal values of the phase shift φ0 = 45°, 67.5°, 90° and the frequency ranges [f1 , f2 ] with overlap coefficients ϰ = f1/f 2 = 2, 2.5, 3 (for m = 3) and ϰ = 3; 3.5; 4 (for m = 5), the regularities of changes in the electrical lengths and wave impedances of even and odd types of excitation of connected transmission lines, electrical lengths and characteristic impedances of single transmission lines and a stub are established. On the basis of the solutions obtained in the TEM-wave approximation, a fixed phase shifter on a microstrip transmission line was developed for the case of m = 3, φ0 = 90°, ϰ = 3. Its circuitry and electrodynamic modeling was carried out. A prototype phase shifter has been manufactured and tested. The experimentally obtained value of the phase shift is 91° ± 1.5°, the voltage standing wave ratio does not exceed 1.4 in the frequency range 0.6–1.5 GHz. The analysis of the reasons for the deviation of the calculated characteristics from the experimental ones is given. Conclusion: The results obtained open up new possibilities for using loops in the problems of synthesis of functional microwave devices. They can be effectively used as an initial approximation in solving the problems of synthesis of fixed phase shifters of the proposed structure on strip and microstrip transmission lines.
topic fixed phase shifter
coupled transmission lines
short-circuited stub
mathematical modeling
method of moments
url https://fizika.sgu.ru/sites/fizika.sgu.ru/files/text-pdf/2021/08/264-274_korchagin_i_dr.pdf
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