Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Clipper Circuit01:18

Clipper Circuit

852
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
852
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

1.5K
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
1.5K
Series Resonance01:17

Series Resonance

747
The RLC circuit impedance is defined as the ratio of the supply voltage to the circuit current. Resonance in such a circuit occurs when the imaginary part of this impedance equals zero. This specific condition means that the inductive reactance is exactly equal to the capacitive reactance. The frequency at which this happens is known as the resonant frequency. Mathematically, the resonant frequency is inversely proportional to the square root of the product of the inductance (L) and capacitance...
747
RLC Series Circuits: Impedance01:29

RLC Series Circuits: Impedance

2.6K
When current flow is opposed in a DC or AC circuit, it is referred to as resistance or impedance, respectively. Impedance plays a key role in determining the performance of AC circuits. It is represented by Z, which is a combination of resistance and reactance, and depends upon the angular frequency, measured in ohms.
Thus, the magnitude of the impedance is given by the following equation,
2.6K
Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

668
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
668
Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

570
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
570

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Dual-Band Bandpass Filter with Wide Upper Stopband Using Stepped-Impedance Resonators and an Integrated Low-Pass Filter.

Micromachines·2026
Same author

Production of Porous Biochar from Cow Dung Using Microwave Process.

Materials (Basel, Switzerland)·2023
Same author

Fabrication and Analysis of Near-Field Electrospun PVDF Fibers with Sol-Gel Coating for Lithium-Ion Battery Separator.

Membranes·2021
Same author

Improved Microstructure and Hardness Properties of Low-Temperature Microwave-Sintered Y<sub>2</sub>O<sub>3</sub> Stabilized ZrO<sub>2</sub> Ceramics with Additions of Nano TiO<sub>2</sub> Powders.

Materials (Basel, Switzerland)·2020
Same author

Sintering Behaviors, Microstructure, and Microwave Dielectric Properties of CaTiO<sub>3</sub>-LaAlO<sub>3</sub> Ceramics Using CuO/B<sub>2</sub>O<sub>3</sub> Additions.

Materials (Basel, Switzerland)·2019
Same author

Restoring warped document images through 3D shape modeling.

IEEE transactions on pattern analysis and machine intelligence·2006
Same journal

Correction: Kang et al. Fluid Flow to Electricity: Capturing Flow-Induced Vibrations with Micro-Electromechanical-System-Based Piezoelectric Energy Harvester. <i>Micromachines</i> 2024, <i>15</i>, 581.

Micromachines·2026
Same journal

Femtosecond Laser Texturing of Wood Coatings with Bio-Based Epoxy and Wax Additives for Enhanced Hydrophobicity.

Micromachines·2026
Same journal

Engineering of Optoelectronic Devices for Renewable Energy Applications.

Micromachines·2026
Same journal

Phase Transformation and Electrochemical Behavior of Hexagonal TiO<sub>2</sub> Nanotubes Under Different Annealing Temperatures and Heating Rates.

Micromachines·2026
Same journal

Process Optimization and Predictive Modeling of Femtosecond Laser Precision Milling for Commercial PMMA Slices.

Micromachines·2026
Same journal

A Hybrid Preprocessing Multi-Objective Surrogate Model for Thermal MEMS Actuators.

Micromachines·2026
See all related articles

Related Experiment Video

Updated: Jan 16, 2026

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.9K

A Quad-Channel Diplexer Using Stub-Loaded Step Impedance Resonators.

Liqin Liu1, Zhenheng Lin1, Qun Chen1

  • 1College of Artificial Intelligence, Electronic Information Industry Technology Research Institute of Putian, Putian University, Putian 351100, China.

Micromachines
|September 27, 2025
PubMed
Summary
This summary is machine-generated.

This study presents a quad-channel diplexer using stub-loaded step impedance resonators. The designed diplexer achieves four distinct passbands, offering good isolation and selectivity for advanced RF applications.

Keywords:
diplexerdual-bandhigh isolationquad-channel

More Related Videos

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
12:21

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

11.7K
Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
09:46

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Published on: August 8, 2025

1.1K

Related Experiment Videos

Last Updated: Jan 16, 2026

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.9K
Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
12:21

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

11.7K
Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
09:46

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Published on: August 8, 2025

1.1K

Area of Science:

  • Electrical Engineering
  • Electromagnetics
  • Microwave Engineering

Background:

  • Diplexers are crucial components in radio frequency (RF) systems for simultaneous signal processing at different frequencies.
  • Existing diplexer designs often face challenges in achieving high selectivity and isolation across multiple passbands.
  • Step impedance resonators offer a flexible approach to filter design, but integrating multiple bands efficiently remains an area of research.

Purpose of the Study:

  • To design and validate a novel quad-channel diplexer capable of operating at four distinct frequencies.
  • To enhance filter selectivity and isolation through innovative resonator coupling and feed network design.
  • To demonstrate the practical feasibility of the proposed diplexer design through simulation and measurement.

Main Methods:

  • Design of a quad-channel diplexer utilizing four stub-loaded step impedance resonators.
  • Implementation of a common feeder T-joint to integrate the resonators.
  • Application of a 0-degree feed at input/output for generating transmission zeros.
  • Coupling of stepped impedance resonators with stub loads to form dual-band filters.

Main Results:

  • Achieved four passbands centered at 2.6 GHz, 3.48 GHz, 4.8 GHz, and 6.3 GHz.
  • Constructed two dual-band filters with good performance characteristics.
  • Obtained good impedance matching when combining the dual-band filters.
  • Demonstrated high isolation (|S23| > 20 dB) between the dual-band filters.
  • Simulation results closely matched measured data, validating the design.

Conclusions:

  • The proposed quad-channel diplexer design effectively integrates multiple frequency bands.
  • The use of stub-loaded step impedance resonators and specific feed techniques leads to high selectivity and isolation.
  • The validated design shows promise for applications requiring multi-channel RF signal processing.