Results 1 to 10 of about 18,243 (134)
Oscillators Based on Step-Impedance and Slow Wave Transmission Lines for Sensing Applications
IEEE Transactions on Microwave Theory and Techniques, 2023 This work investigates the capabilities of oscillators based on step-impedance and slow wave structures to sense dielectric constants. The material under test (MUT) is placed over the structure and the objective is to achieve a high sensitivity of the oscillation frequency with the advantage of low phase noise, enabled by the high quality factor of the
Mabel Ponton +2 more
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IEEE Sensors Journal, 2021 Reflective-mode step-impedance transmission line based sensors for dielectric characterization of solids or liquids have been recently proposed. In this article, in order to further increase the sensitivity, the sensor is implemented in coplanar waveguide (CPW technology), and this constitutes the main novelty of this work.
Lijuan Su +2 more
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IEEE Access, 2020 This paper presents branch line couplers with compact size and harmonic suppression based on non-periodic reactively loaded artificial lines. The reactive loading elements of the lines are step impedance shunt stubs (SISSs).
Jan Coromina +3 more
doaj +3 more sources
IET Microwaves, Antennas and Propagation, 2009 The application of step-impedance transmission lines (SITLs) to improving the directivity of parallel-coupled microstrip lines is presented. A simple design procedure for two configurations based on the SITL technique is given. The application of the technique is demonstrated practically with a design at 0.9 GHz on an RF60 substrate.
R Phromloungsri +2 more
exaly +2 more sources
PLoS ONE, 2021 In this article, a new method is developed to design a three-band miniaturized bandpass filter (BPF) that uses two asymmetrically coupled resonators with one step discontinuity and open-circuited uniform impedance resonator (UIR) to achieve Global ...
Abdul Basit +4 more
doaj +2 more sources
Transmission lines loaded with pairs of stepped impedance resonators [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2016 Differential techniques are widely used in communication and sensor systems, as these techniques have been shown to improve the performance. This paper shows how differential sensing of permittivity can be conducted in a simple way. For that purpose, a microstrip line loaded with a pair of stepped-impedance resonators is used in two different resonator
Naqui Garolera, Jordi +6 more
openaire +4 more sources
Out-of-Step Protection Based on Discrete Angle Derivatives
IEEE Access, 2022 This paper presents an out-of-step protection algorithm based on angle derivatives, which makes use of wide-area measurements and can be applied on arbitrary tie-lines in electrical power systems.
Marko Tealane +4 more
doaj +1 more source
Synthesis and Design of Highly Selective Multi-Mode Dual-Band Bandstop Filter
IEEE Access, 2021 This paper presents the synthesis and design of the multi-mode dual-band bandstop filter (MM-DBBSF). A highly selective multi-mode dual-band bandstop response is obtained using a quarter wavelength coupled line structure.
Muhammad Faisal +3 more
doaj +1 more source
A Reflective-Mode Phase-Variation Displacement Sensor
IEEE Access, 2020 In this paper, a displacement sensor based on an open-ended step-impedance transmission line is reported. The sensor operates in reflection, and the output variable is the phase of the reflection coefficient.
Jonathan Munoz-Enano +4 more
doaj +1 more source
IEEE Access, 2023 This paper presents a dual-mode characteristic for miniaturized metamaterial with a unit cell design based on an interdigital coplanar waveguide (ICPW) combined with trisection step-impedance to enable the three resonant frequency responses of 1.8 GHz, 3.
P. Chomtong +4 more
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