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

Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

759
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:
759
Series Resonance01:17

Series Resonance

975
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...
975
Parallel Resonance01:23

Parallel Resonance

705
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
705
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

8.1K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
8.1K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

833
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
833
Series RLC Circuit without Source01:21

Series RLC Circuit without Source

3.1K
Within the field of electrical circuits, source-free RLC circuits present an intriguing domain. These circuits comprise a series arrangement of a resistor, inductor, and capacitor, operating independently of external energy sources. Their initiation hinges upon utilizing the initial energy stored within the capacitor and inductor to instigate their functionality. Their mathematical equation, a second-order differential equation, sets these circuits apart. This equation captures how the...
3.1K

You might also read

Related Articles

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

Sort by
Same author

Three-dimensional helical integration of high-density linear microelectrode arrays and their cross-tissue applications.

Biosensors & bioelectronics·2026
Same author

Microbiota-fibroblasts interactions in multi-organ fibrosis.

Microbiological research·2026
Same author

Elucidating vadose zone solute transport dynamics <i>via</i> soil-embedded microfluidics: impacts of saturation and heterogeneity.

Lab on a chip·2026
Same author

Losartan shows limited benefit in preclinical models of Geleophysic dysplasia.

Scientific reports·2026
Same author

Ultrasensitive, self-calibrating cortisol immunosensor enabled by dual-modal CuMOF-PEI@AuNPs@HRP immunoreceptor.

Talanta·2026
Same author

Root-knot-nematode-derived mimics of RGF peptides hijack host signalling to orchestrate feeding site formation.

Nature plants·2026

Related Experiment Video

Updated: Mar 15, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

8.2K

Efficient Radiation by Electrically Small Antennas made of Coupled Split-ring Resonators.

Liang Peng1,2, Peiwei Chen1,2, Aiting Wu2

  • 1Key Laboratory for RF Circuits and Systems (Hangzhou Dianzi University), Ministry of Education, Hangzhou, 310018, China.

Scientific Reports
|September 16, 2016
PubMed
Summary

Coupled split-ring resonators (SRRs) enable the creation of efficient electrically small antennas (ESAs). Strong magnetic coupling allows these antennas to operate at wavelengths larger than their physical size, achieving high radiation efficiency.

More Related Videos

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

12.0K
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

17.6K

Related Experiment Videos

Last Updated: Mar 15, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

8.2K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

12.0K
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

17.6K

Area of Science:

  • Electromagnetics
  • Antenna Theory
  • Metamaterials

Background:

  • Electrically small antennas (ESAs) are crucial for miniaturized electronic devices.
  • Traditional ESAs often suffer from low radiation efficiency and narrow bandwidth.
  • Split-ring resonators (SRRs) offer unique electromagnetic properties for antenna design.

Purpose of the Study:

  • To investigate the use of coupled SRRs for constructing high-efficiency ESAs.
  • To demonstrate strong magnetic coupling for achieving sub-wavelength operation.
  • To enhance the radiation efficiency of ESAs through optimized current distribution.

Main Methods:

  • Utilizing coupled split-ring resonators (SRRs) to form antenna structures.
  • Leveraging strong magnetic coupling to achieve resonance at wavelengths larger than the antenna size.
  • Employing mutual induction for impedance matching in the microwave region.
  • Simulations and experimental measurements to validate performance.

Main Results:

  • Demonstrated that coupled SRRs can oscillate at wavelengths significantly larger than their physical dimensions.
  • Achieved high-Q resonance enabling easy impedance matching.
  • Showcased a significant improvement in radiation efficiency up to 41% with a relative footprint of 0.05λ0 × 0.05λ0.
  • Verified that similar current distribution on individual SRRs enhances efficiency.

Conclusions:

  • Coupled SRRs provide an effective method for realizing high-efficiency ESAs.
  • The proposed design allows for sub-wavelength operation and efficient power radiation.
  • This approach is suitable for on-chip implementation using standard planar lithography.