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

IR Spectrometers01:25

IR Spectrometers

2.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
2.1K
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

390
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
390

You might also read

Related Articles

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

Sort by
Same author

Development of Ferrite-Based Temperature Sensors for Magnetic Resonance Imaging: A Study of Cu<sub>1-x</sub>Zn<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub>.

Physical review applied·2019
Same author

Biasing vector network analyzers using variable frequency and amplitude signals.

The Review of scientific instruments·2016
Same author

Ferromagnetic particles as magnetic resonance imaging temperature sensors.

Nature communications·2016
Same author

Analytical analysis of a multilayer structure with ultrathin Fe film for magneto-optical sensing.

Optics express·2013
Same author

A broadband ferromagnetic resonance spectrometer to measure thin films up to 70 GHz.

The Review of scientific instruments·2011
Same journal

Erratum: "Highly versatile, two-color setup for high-order harmonic generation using spatial light modulators" [Rev. Sci. Instrum. 95, 073002 (2024)].

The Review of scientific instruments·2026
Same journal

Thermal correction method for accurate performance evaluation of micro-thermoelectric coolers.

The Review of scientific instruments·2026
Same journal

Correcting the energy-dependent asymmetry in low-energy muon spin rotation.

The Review of scientific instruments·2026
Same journal

Fiber-integrated acousto-optic-modulator-based phase-controlled Rydberg atomic electrometer.

The Review of scientific instruments·2026
Same journal

A top-loading point-contact spectroscopy probe with in-situ sample exchange for dilution refrigerators.

The Review of scientific instruments·2026
Same journal

Investigation of plasma characteristics in a developed large-diameter, low-aspect ratio, radio frequency plasma source with a flat spiral antenna.

The Review of scientific instruments·2026
See all related articles

Related Experiment Video

Updated: Dec 27, 2025

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

9.7K

Microwave interferometer for phase and response time measurements.

J E Nobles1, J Hankiewicz1, D Bueno Baques1

  • 1Center for Magnetism and Magnetic Nanostructures, University of Colorado, Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, Colorado 80918, USA.

The Review of Scientific Instruments
|March 2, 2020
PubMed
Summary
This summary is machine-generated.

A new microwave interferometer with a quadrature intermediate frequency (IQ) mixer measures liquid crystal device performance. This system overcomes vector network analyzer limitations for AC bias testing in the K bands.

More Related Videos

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.8K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.8K

Related Experiment Videos

Last Updated: Dec 27, 2025

Implementation of a Reference Interferometer for Nanodetection
16:11

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

9.7K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.8K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.8K

Area of Science:

  • Microwave Engineering
  • Materials Science
  • Electrical Engineering

Background:

  • Traditional methods for testing microwave devices, particularly those utilizing liquid crystals, face limitations in applying wide-ranging AC bias signals.
  • Vector network analyzers (VNAs) have restricted amplitude and frequency ranges for bias ports, hindering comprehensive device characterization.

Purpose of the Study:

  • To develop a novel microwave interferometer capable of measuring relative phase changes and response times of microwave devices.
  • To enable testing of liquid crystal devices with AC bias signals exceeding VNA limitations.
  • To characterize device performance across Ka and upper K bands (22-40 GHz).

Main Methods:

  • Development of a microwave interferometer centered around a quadrature intermediate frequency (IQ) mixer.
  • Integration of a bias signal generator capable of delivering 0-100 V peak-to-peak from DC to 100 kHz.
  • Measurement of output phase changes as a function of applied bias voltage and frequency.
  • Assessment of phase difference versus microwave frequency and device response times.

Main Results:

  • Successful development of an IQ mixer-based microwave interferometer for Ka and upper K band testing.
  • Demonstrated capability to apply AC bias signals (0-100 V peak-to-peak, DC-100 kHz) beyond VNA limitations.
  • Accurate measurement of relative phase changes and response times for liquid crystal devices.
  • System operates as a stand-alone unit, independent of a VNA.

Conclusions:

  • The developed microwave interferometer offers a versatile and advanced solution for characterizing microwave devices, especially liquid crystal-based ones.
  • The system's ability to apply extensive AC bias signals provides deeper insights into device behavior.
  • This novel setup enhances microwave device testing capabilities and can be integrated without requiring a VNA.