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

Transmission Line Design Considerations01:23

Transmission Line Design Considerations

Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
Traveling Waves: Lossless Lines01:27

Traveling Waves: Lossless Lines

The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
Boundary Conditions: Lossless Lines01:21

Boundary Conditions: Lossless Lines

Consider a single-phase, two-wire, lossless transmission line terminated by an impedance at the receiving end and a source with Thevenin voltage and impedance at the sending end. The line, with length, has a surge impedance and wave velocity determined by the line's inductance and capacitance.
At the receiving end, the boundary condition states that the voltage equals the product of the receiving-end impedance and current. This relationship is expressed as a function of the incident and...
Lossy Lines and Overvoltages01:22

Lossy Lines and Overvoltages

Transmission-line series resistance and shunt conductance cause three primary effects: attenuation, distortion, and power losses.
Attenuation
When constant series resistance and shunt conductance are present, voltage and current equations are modified. The propagation constant indicates that voltage and current waves consist of both forward and backward traveling components. These waves attenuate as they propagate, with the attenuation factor related to the resistance and conductance. In a...
Magnetic Field Due To A Thin Straight Wire01:27

Magnetic Field Due To A Thin Straight Wire

Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.

You might also read

Related Articles

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

Sort by
Same author

Arbitrary geometry electromagnetic spatiotemporal vortices from phase velocity shearing.

Optics express·2026
Same author

Beam manipulation for terahertz communications.

Communications engineering·2026
Same author

Steerable terahertz beams using surface waves on an active metasurface.

Scientific reports·2025
Same author

Diffraction effects in highly defocused THz beams.

Optics express·2025
Same author

Programmable low-coherence wavefronts for enhanced localization.

Communications engineering·2025
Same author

Ultrafast Electron Temperature Dynamics in Spintronic Terahertz Emitters Studied by Optical-Pump Terahertz-Probe Spectroscopy.

ACS photonics·2025

Related Experiment Video

Updated: Jun 16, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Bending and coupling losses in terahertz wire waveguides.

Victoria Astley1, Julianna Scheiman, Rajind Mendis

  • 1Department of Electrical and Computer Engineering, MS-366, Rice University, 6100 Main Street, Houston,Texas 77005, USA. vastley@rice.edu

Optics Letters
|February 18, 2010
PubMed
Summary

Wire waveguides for terahertz pulses maintain signal strength with gaps. Optimal bending radius minimizes propagation loss by managing spatial mode distortion.

More Related Videos

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

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

Related Experiment Videos

Last Updated: Jun 16, 2026

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

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

Area of Science:

  • Physics
  • Electromagnetism
  • Waveguide Technology

Background:

  • Terahertz (THz) pulse propagation is crucial for spectroscopy and imaging.
  • Wire waveguides offer a promising transmission method for THz radiation.
  • Understanding waveguide perturbations is essential for reliable THz systems.

Purpose of the Study:

  • To experimentally investigate the effects of common perturbations on wire waveguides for terahertz pulses.
  • To quantify signal strength, bandwidth, and recoupling efficiency with wire gaps.
  • To analyze bending losses and identify optimal parameters for minimizing propagation loss.

Main Methods:

  • Experimental setup for terahertz pulse propagation through perturbed wire waveguides.
  • Systematic variation of gap sizes in wire waveguides.
  • Measurement of signal strength and bandwidth after perturbations.
  • Detailed study of waveguide bending losses at various radii of curvature.

Main Results:

  • Sommerfeld waves demonstrate robust signal strength and bandwidth even with significant wire gaps.
  • Higher frequencies exhibit more efficient recoupling after gaps.
  • An optimal radius of curvature was identified to minimize propagation loss for a given turn angle.
  • Spatial mode distortion significantly impacts radiative bend loss.

Conclusions:

  • Wire waveguides are resilient to common perturbations like gaps, maintaining signal integrity for terahertz applications.
  • Minimizing bending losses requires careful consideration of the radius of curvature to manage spatial mode distortion.
  • These findings are critical for designing efficient and reliable terahertz waveguide systems.