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Title: Dynamic frequency tuning of electric and magnetic metamaterial response

Abstract

A geometrically modifiable resonator is comprised of a resonator disposed on a substrate, and a means for geometrically modifying the resonator. The geometrically modifiable resonator can achieve active optical and/or electronic control of the frequency response in metamaterials and/or frequency selective surfaces, potentially with sub-picosecond response times. Additionally, the methods taught here can be applied to discrete geometrically modifiable circuit components such as inductors and capacitors. Principally, controlled conductivity regions, using either reversible photodoping or voltage induced depletion activation, are used to modify the geometries of circuit components, thus allowing frequency tuning of resonators without otherwise affecting the bulk substrate electrical properties. The concept is valid over any frequency range in which metamaterials are designed to operate.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1159520
Patent Number(s):
8836439
Application Number:
11/871,642
Assignee:
Los Alamos National Security LLC (Los Alamos, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01P - WAVEGUIDES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01Q - ANTENNAS, i.e. RADIO AERIALS
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

O'Hara, John F, Averitt, Richard, Padilla, Willie, and Chen, Hou-Tong. Dynamic frequency tuning of electric and magnetic metamaterial response. United States: N. p., 2014. Web.
O'Hara, John F, Averitt, Richard, Padilla, Willie, & Chen, Hou-Tong. Dynamic frequency tuning of electric and magnetic metamaterial response. United States.
O'Hara, John F, Averitt, Richard, Padilla, Willie, and Chen, Hou-Tong. Tue . "Dynamic frequency tuning of electric and magnetic metamaterial response". United States. https://www.osti.gov/servlets/purl/1159520.
@article{osti_1159520,
title = {Dynamic frequency tuning of electric and magnetic metamaterial response},
author = {O'Hara, John F and Averitt, Richard and Padilla, Willie and Chen, Hou-Tong},
abstractNote = {A geometrically modifiable resonator is comprised of a resonator disposed on a substrate, and a means for geometrically modifying the resonator. The geometrically modifiable resonator can achieve active optical and/or electronic control of the frequency response in metamaterials and/or frequency selective surfaces, potentially with sub-picosecond response times. Additionally, the methods taught here can be applied to discrete geometrically modifiable circuit components such as inductors and capacitors. Principally, controlled conductivity regions, using either reversible photodoping or voltage induced depletion activation, are used to modify the geometries of circuit components, thus allowing frequency tuning of resonators without otherwise affecting the bulk substrate electrical properties. The concept is valid over any frequency range in which metamaterials are designed to operate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 16 00:00:00 EDT 2014},
month = {Tue Sep 16 00:00:00 EDT 2014}
}

Works referenced in this record:

Dynamically variable frequency selective surface
patent, June 2005


Actively tunable electromagnetic metamaterial
patent, April 2009


Tunable reduced weight artificial dielectric antennas
patent-application, May 2002


Multiband or broadband frequency selective surface
patent-application, July 2003


Resonator system with a plurality of individual mechanically coupled resonators and method of making same
patent-application, June 2005


Super-resolution optical components and left-handed materials thereof
patent-application, July 2006


Structures With Negative Index Of Refraction
patent-application, September 2007


Wet-etch optimization of free-standing terahertz frequency-selective structures
journal, January 2003


Analysis of a tunable frequency-selective surface on an in-plane biased ferrite substrate
journal, October 1996


Frequency tunable metallo–dielectric structure for backscattering reduction
journal, January 2004


Controllable left-handed metamaterial and its application to a steerable antenna
journal, July 2006


Tunable frequency selective surface using liquid substrates
journal, February 1994


Metamaterial-Based Electronically Controlled Transmission-Line Structure as a Novel Leaky-Wave Antenna With Tunable Radiation Angle and Beamwidth
journal, December 2004


Dynamical Electric and Magnetic Metamaterial Response at Terahertz Frequencies
journal, March 2006


A tunable artificial magnetic conductor using switched capacitance in a concentric overlapping geometry
conference, January 2003

  • Sanchez, V.; Paller, E.
  • 2003 IEEE International Symposium on Antennas and Propagation: URSI North American Radio Science Meeting, IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450)
  • https://doi.org/10.1109/APS.2003.1219270

Electrically-tunable band-stop filter with mechanically-variable bandwidth
journal, January 2005


Reconfigurable electromagnetic band gap based structures with defects for mm-wave and antenna applications
conference, January 2003


Magnetic MEMS Reconfigurable Frequency-Selective Surfaces
journal, June 2006


Waveguide demonstration of varactor-diode-tunable band-pass frequency-selective surface
journal, January 2005


Voltage controlled metamaterial
journal, February 2004


Tunable metamaterial transmission lines based on varactor-loaded split-ring resonators
journal, June 2006


Frequency selective surfaces loaded with surface-mount reactive components
journal, January 2003


Optical switching of frquency selective surface bandpass response
journal, January 1996