Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bandpass Sampling

Bandpass Sampling

In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....

You might also read

Related Articles

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

Sort by

Same author

2-Amino-6-cyanopurines as Novel Fluorescent Probes for Functional Live Imaging of Yeast Vacuoles.

Chembiochem : a European journal of chemical biology·2026

Same author

Dual-targeted hyaluronic acid conjugates on lipid nanoparticles improve delivery and efficacy against glioblastoma: The linkage leads the fate.

International journal of biological macromolecules·2025

Same author

A switch-on chemo-photothermal nanotherapy impairs glioblastoma.

Materials horizons·2025

Same author

Structural Disruption of Cilia and Increased Cytoplasmic Tubulin in Biliary Atresia-An Exploratory Study Focusing on Early Postoperative Prognosis Following Portoenterostomy.

Biomedicines·2025

Same author

Cell Wall-Mediated Antifungal Activity of the Aqueous Extract of <i>Hedera helix</i> L. Leaves Against <i>Diplodia corticola</i>.

Antibiotics (Basel, Switzerland)·2025

Same author

Chemical characterization and antioxidant potential of Arthrospira sp., Thalassiosira sp., and Raphidonema sp.

Food chemistry·2024

Search research articles

Related Experiment Video

Updated: Jul 7, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Multi-beam, WDM-based photonic beamformer with spectrum reuse.

Rui Oliveira, Rogério N Nogueira, Miguel V Drummond

|December 22, 2023

Summary

This study introduces a novel photonic beamformer using wavelength-division multiplexing (WDM) to create multiple RF beams simultaneously. This WDM beamformer enables efficient spectral reuse for advanced phased array antenna systems.

Area of Science:

Photonics
Electrical Engineering
Antenna Systems

Background:

Phased array antennas require complex beamforming.
Traditional methods can be spectrally inefficient.
Photonic solutions offer high bandwidth and parallelism.

Purpose of the Study:

To present a novel wavelength-division multiplexing (WDM)-based photonic beamformer.
To enable simultaneous generation of multiple RF beams within the same optical spectrum.
To demonstrate spectral efficiency in RF phased array transmitters.

Main Methods:

Utilizing WDM signals for modulated RF sidebands and optical carriers.
Implementing complex-valued filtering for RF sidebands.
Employing optical frequency-shifting for optical carriers.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Related Experiment Videos

Last Updated: Jul 7, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Integrating photodetectors for signal generation and weighting.

Main Results:

Analytical derivation, numerical simulation, and experimental demonstration of the proposed architecture.
Successful generation and transmission of two independent RF beams in different directions.
Validation of simultaneous multi-beam generation using shared WDM channels.

Conclusions:

The proposed WDM photonic beamformer effectively generates multiple RF beams.
This architecture enhances spectral efficiency by reusing WDM channels.
The technology is suitable for advanced RF phased array antenna transmitters.