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

Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

392
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
392
Relation between Mathematical Equations and Block Diagrams01:20

Relation between Mathematical Equations and Block Diagrams

2.9K
In a spring-mass-damper system, the second-order differential equation describes the dynamic behavior of the system. When transformed into the Laplace domain under zero initial conditions, this equation can be effectively analyzed and manipulated. The transformation into the Laplace domain converts differential equations into algebraic equations, simplifying the process of isolating the output.
2.9K
Mesh Analysis01:20

Mesh Analysis

1.4K
Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...
1.4K
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
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

1.1K
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the...
1.1K
Block Diagram Reduction01:22

Block Diagram Reduction

536
The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
536

You might also read

Related Articles

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

Sort by
Same author

Spectral principle for frequency synchronization in repulsive laser networks and beyond.

Chaos (Woodbury, N.Y.)·2025
Same author

Neural computing with coherent laser networks.

Nanophotonics (Berlin, Germany)·2024
Same author

Arrayed waveguide lens for beam steering.

Nanophotonics (Berlin, Germany)·2024
Same author

Landau levels and snake states of pseudo-spin-1 Dirac-like electrons in gapped Lieb lattices.

Journal of physics. Condensed matter : an Institute of Physics journal·2022
Same author

Anti-parity-time symmetry in diffusive systems.

Science (New York, N.Y.)·2019
Same author

Exceptional points in optics and photonics.

Science (New York, N.Y.)·2019
Same journal

Interplay between oxygen redox and interfacial stability of Li-rich positive electrodes in sulfide-based all-solid-state batteries.

Nature communications·2026
Same journal

Breaking dependence on melanisation imparts diversity to a dogmatic invasion strategy of phytopathogenic fungi.

Nature communications·2026
Same journal

Hydroxyl-rich nanocavities on perovskite enable nearly barrierless intramolecular hydrogen transfer for nitrate electroreduction to ammonia.

Nature communications·2026
Same journal

Household mobility responses to weather extremes in Kyrgyzstan.

Nature communications·2026
Same journal

Autonomous Motion Vision with Tri-bulk-heterojunctioned Organic Adaptation Transistor.

Nature communications·2026
Same journal

Tissue-adhesive hydrogel optical fiber for peripheral optogenetic neuromodulation.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Jan 16, 2026

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
10:46

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins

Published on: October 18, 2022

2.2K

Programmable circuits for analog matrix computations.

Rasool Keshavarz1, Kevin Zelaya2, Negin Shariati1

  • 1RF and Communication Technologies (RFCT) Research Laboratory, University of Technology Sydney, Sydney, NSW, Australia.

Nature Communications
|September 26, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a novel microwave-integrated circuit for analog matrix computations, enabling faster, smaller, and more power-efficient signal processing in radiofrequency and microwave devices.

More Related Videos

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

13.5K
Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications
11:13

Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications

Published on: February 19, 2017

10.1K

Related Experiment Videos

Last Updated: Jan 16, 2026

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
10:46

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins

Published on: October 18, 2022

2.2K
Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
11:15

Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze

Published on: February 20, 2014

13.5K
Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications
11:13

Design and Implementation of an Automated Illuminating, Culturing, and Sampling System for Microbial Optogenetic Applications

Published on: February 19, 2017

10.1K

Area of Science:

  • Electrical Engineering
  • Applied Physics
  • Signal Processing

Background:

  • Matrix operations are fundamental to radiofrequency (RF) and microwave signal processing.
  • Analog matrix computations offer significant advantages in speed, size, weight, and power (SWaP) reduction for RF and microwave devices.
  • Current electronic systems often require power-hungry components for complex matrix operations.

Purpose of the Study:

  • To propose and demonstrate a microwave-integrated circuit capable of universal unitary matrix transformations.
  • To leverage electromagnetic wave properties for parallel signal processing at the speed of light.
  • To reduce reliance on power-hungry electronics in RF and microwave systems.

Main Methods:

  • The proposed device utilizes alternating non-reconfigurable and reconfigurable layers of basic RF components.
  • Cascaded power dividers and programmable phase elements form the core of the reconfigurable layers.
  • Controllable multipath interference is achieved through linear wave mixing and active phase control.

Main Results:

  • A four-port integrated circuit was experimentally demonstrated.
  • The device operates across a frequency range of 1.5-3.0 GHz.
  • The circuit functions at low power levels, in the hundreds of microwatts range.

Conclusions:

  • The developed device enables universal analog matrix transformations for RF and microwave signal processing.
  • This technology can lead to universal analog RF and microwave processors with programmable functionalities.
  • Potential applications include advanced communication systems and radar systems requiring multipurpose processing capabilities.