Novel technique of phase velocity equalization for microstrip coupled-line phase shifters [PDF]
, 2000 By properly selecting the characteristic impedance and electrical length of the linking line between the coupled lines, phase velocity compensation for microstrip coupled-line phase shifters can be achieved.
Leong, Y. C., Weinreb, S.
core
High/low-impedance transmission-line and coupled-line filter networks for differential phase shifters [PDF]
, 2011 Two compact and simple to design differential phase shifter topologies, based on high/low-impedance transmission-line sections and open-ended coupled-line sections, are presented for the first time.
Emrich, Anders, Sobis, Peter, Stake, Jan
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A COMPLEX IMPEDANCE-TRANSFORMING COUPLED-LINE BALUN [PDF]
Progress In Electromagnetics Research Letters, 2014 An asymmetrical coupled-line circuit is proposed to design a planar microstrip balun, which has the advantages of compact structure and complex source to complex load impedance transformation. This balun consists of three pairs of coupled lines and two tapped transmission-line stubs. Based on the traditional even-odd mode technique and ABCD parameters,
Weiwei Zhang +5 more
openaire +1 more source
High power, broadband, coaxial to microstrip bi‐directional coupler in the VHF/UHF band
IET Science, Measurement & TechnologyBroadband couplers consist usually of multiple coupled lines that are each a quarter wave‐length long. Herein, in contrast to conventional methods, a short length of a microstrip line is coupled to a coaxial line.
Tohid Naeimi, Arash Ahmadi
doaj +1 more source
Strongly Enhanced Sensitivity in Planar Microwave Sensors Based on Metamaterial coupling
, 2017 Limited sensitivity and sensing range are arguably the greatest challenges in microwave sensor design. Recent attempts to improve these properties have relied on metamaterial- (MTM-) inspired open-loop resonators (OLRs) coupled to transmission lines (TLs)
Abdolrazzaghi, Mohammad +2 more
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A Multisection Broadband Impedance Transforming Branch-Line Hybrid [PDF]
, 1995 Measurements and design equations for a two section impedance transforming hybrid suitable for MMIC applications and a new method of synthesis for multisection branch-line hybrids are reported.
Danshin, T., Kumar, S., Tannous, C.
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DESIGN AND FABRICATION OF 12 GHZ MICROSTRIP DIRECTIONAL COUPLER FOR RF/MICROWAVE APPLICATION [PDF]
Journal of Engineering Science and Technology, 2016 Microstrip coupled line is parallel coupled transmission lines formed by coupling two conducting strips (resonator) with the same width together at a certain distance.
AZAHAR FAUZI, ZAIRI ISMAEL RIZMAN
doaj
Modal parameters of unequal coupled lines
Proceedings of Tomsk State University of Control Systems and Radioelectronics, 2020 New formulas and graphs for modal parameters are given, which are necessary for the synthesis of unequal coupled lines with arbitrary dielectric filling. The choice of modal parameters, such as characteristic impedance, coupling coefficient, modal voltages and dielectric constants, as initial data for the calculation allows optimal synthesis of the ...
A. N. Sychev +4 more
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Superconducting 4-8-GHz Hybrid Assembly for 2SB Cryogenic THz Receivers [PDF]
, 2014 We present here the design and characterization of an intermediate frequency (IF) assembly comprising a compact 90 hybrid chip (coupled line coupler - Lange coupler- coupled line coupler), two bias-T circuits for biasing the superconductor-insulator ...
Belitsky, Victor +4 more
core +1 more source
Broadband Butler Matrices with the Use of High-Pass LC Sections as Left-Handed Transmission Lines [PDF]
, 2014 An application of left-handed transmission line sections in Butler matrices has been investigated. It has been shown, for the first time, that the utilization of both left-handed and right-handed transmission lines allows for broadband differential phase
Gruszczynski, S. +2 more
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