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 Experiment Videos

Phased array element shapes for suppressing grating lobes.

F Joseph Pompei1, Shi-Chang Wooh

  • 1Massachusetts Institute of Technology, Cambridge 02139, USA. pompei@media.mit.edu

The Journal of the Acoustical Society of America
|June 8, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Processing of ultrasonic array signals for characterizing defects. Part I: signal synthesis.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2007
Same author

Processing of ultrasonic array signals for characterizing defects. Part II: experimental work.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2007
Same author

Design of ultrasonic wedge transducer.

Ultrasonics·2005
Same author

Laser-ultrasonic generation of Lamb waves in the reaction force range.

Ultrasonics·2003
Same journal

Interaction of near-wall bubble arrays with acoustic waves induced by an oscillating rigid wall.

The Journal of the Acoustical Society of America·2026
Same journal

Ultra-broadband underwater acoustic projector based on transverse resonance orthogonal beam (TROB) mode and acoustic matching layer technique.

The Journal of the Acoustical Society of America·2026
Same journal

Fine-scale quantitative analysis of bowhead whale (Balaena mysticetus) song shows varying stability of song types.

The Journal of the Acoustical Society of America·2026
Same journal

High-resolution depth estimation for multiple wideband sources in deep sea via sparse Bayesian learninga).

The Journal of the Acoustical Society of America·2026
Same journal

Depression markers in speech: An approach based on tract variables dynamics.

The Journal of the Acoustical Society of America·2026
Same journal

The oyster toadfish (Opsanus tau) alters active and diurnal calling amid vessel noise in New York City.

The Journal of the Acoustical Society of America·2026
See all related articles

This study introduces a novel method to eliminate grating lobes in phased arrays using oversized, shaped elements. This technique allows for reduced element spacing by trading off maximum scan angle.

Area of Science:

  • Electrical Engineering
  • Electromagnetics
  • Antenna Theory

Background:

  • Phased arrays commonly use sparse or aperiodic element arrangements to suppress grating lobes.
  • Varying transmit-receive beam patterns is another method to mitigate grating lobes.
  • These conventional techniques often involve complex element redistribution or beamforming strategies.

Purpose of the Study:

  • To present an alternative method for suppressing grating lobes in phased arrays.
  • To investigate the use of oversized array elements for grating lobe elimination.
  • To explore the trade-offs between element spacing and scan angle using this novel approach.

Main Methods:

  • Designing array elements with specific shapes to inherently eliminate grating lobes.

Related Experiment Videos

  • Utilizing overlapping, oversized elements to influence the array's radiation pattern.
  • Analyzing the relationship between element shape, interelement spacing, and scan angle.

    • Main Results:

    • Grating lobes are effectively eliminated as a direct result of the element's shape.
    • A reduced interelement spacing requirement is achieved.
    • The maximum scan angle is exchanged for the benefit of reduced spacing.

    Conclusions:

    • Oversized, carefully shaped array elements offer a direct and effective way to suppress grating lobes.
    • This method provides an alternative to traditional techniques involving sparse arrays or complex beam patterns.
    • The design allows for a flexible trade-off between scan angle and element spacing in phased array systems.