METAMATERIAL ADVANCES FOR RADAR AND COMMUNICATIONS

METAMATERIAL
ADVANCES FOR
RADAR AND
COMMUNICATIONS
DR. ELI BROOKNER
RAYTHEON CO. (RETIRED)
E‐MAIL: ELI.BROOKNER@GMAIL.COM
TEL: 781‐862‐7014; CELL: 781‐654‐5550
BOSTON IEEE PHOTONICS-AESS-ED-COMM
DISTINGUISHED LECTURE (DL), 11-9-2017
COPYRIGHT © 2017 BY DR. ELI BROOKNER),
BEFORE
AFTER
ARRAYS
HAVE SEEN
AMAZING
ADVANCES
MULTIFUNCTION PHASED
ARRAYS
METAMATERIALS
11/9/2017
8
8
MATERIAL
ON
DEMAND
11/9/2017
9
9
METAMATERIALS
MATERIAL WITH MAN MADE
PROPERTIES BASED ON
SUB‐WAVELENGTH
REPEATED STRUCTURE
11/9/2017
(TECHNOLOGY TODAY, 2012, ISSUE 1)
10 10
METAMATERIALS
CONSTRUCTION
ε<0
µ<0
n<0
(DEROV, J.S., ET AL, AFRL, CAMBRIDGE, ALLERTON, 2008)
FATHER OF NEGATIVE
INDEX OF REFRACRION
GEORGIEVICH VESELAGO (BORN 13 JUNE 1929 IN UKRAINIAN
SSR, USSR) RUSSIAN PHYSICIST; AGE: 88
INSTITUTE: MOSCOW INSTITUTE OF PHYSICS AND TECHNOLOGY
V. G. VESELAGO (1968 (RUSSIAN TEXT 1967)). "THE
ELECTRODYNAMICS OF SUBSTANCES WITH
SIMULTANEOUSLY NEGATIVE VALUES OF Ε AND Μ". SOV.
PHYS. USP. 10 (4): 509–514.
HTTPS://WWW.YOUTUBE.COM/WATCH?V=JSEHPNQXLP
HTTPS://WWW.YOUTUBE.COM/WATCH?V=JSEHPNQXLP
METAMATERIALS
STEALTHING OR CLOAKING
THE SCIENCE OF INVISIBILITY, ULF LEONHARDT, TEDXBRUSSELS;
HTTPS://WWW.YOUTUBE.COM/WATCH?V=V9D-EBGRO50
DR. ELI WITH PROF. JOHN PENDRY
AT RADAR 2014, LILLE, FRANCE
PENDRY SHOWED HOW TO ACHIEVE A
NEGATIVE INDEX OF REFRACTION
USING SPLIT RINGS AND AN ARRAY OF
SHORT WIRES (1999)
PENDRY INDICATED THAT WITH
NEGATIVE INDEX OF REFRACTION
COULD IMAGE BEYOND DIFFRACTION
LIMIT OF /2, DOWN TO NMs:
COULD IMAGE VIRUSES
METAMATERIALS
CONSTRUCTION
ε<0
µ<0
n<0
(DEROV, J.S., ET AL, AFRL, CAMBRIDGE, ALLERTON, 2008)
6X DIFFRACTION LIMIT
(λ/12) ACHIEVED AT 0.36 μm
SUPERLENS OF
15 nm SILVER FILM
WITH NEG ε;
Layers of
Ag, Cr, Quartz
(NICHOLAS FANG, APP. PHYSICS LET., 2010, UN. ILLINOIS)
29
6X DIFFRACTION LIMIT
(λ/12) ACHIEVED AT 0.36 μm
SUPERLENS OF
b1
15 nm SILVER FILM
WITH NEG 
Ag
Cr
QUARTZ
(NICHOLAS FANG, APP.
PHYSICS LET., 2010,
UN. ILLINOIS)
40X DIFFRACTION LIMIT
(λ/80) ACHIEVED AT 375 MHz
Metalens
‘Superlens’ of 8x8
λ/2 = 40 cm Long
Vert. Cu Wires
1.2 cm Apart
(G. LEROSEY, ET AL, PHYSICS REV. LET., 2010, ESPCI PARISTECH)
11/9/2017
32
40X DIFFRACTION LIMIT
(λ/80) ACHIEVED AT 375 MHz
METALENS
‘SUPERLENS’ OF 8X8
λ/2 = 40 cm LONG
VERT. Cu WIRES
1.2 cm APART
λ/25
λ/80
(G. LEROSEY, ET AL, PHYSICS REV. LET., 2010, ESPCI PARISTECH)
(U. L. ROHDE, ETAL, METAMATERIAL RESONATORS, MICROWAVE J, 12-15-14)
CLOAKING
11/9/2017
35
35
CLOAKING AT MICROWAVES
USING SPLIT RINGS
DIAMETER 5 CM
DUKE UN.
CLOAKING WITH
ACOUSTIC
METAMATERIAL
OMSOL MULTIPHYSICS, IEEE SPECTRUM, 9/16, PP S13-S15)
1/4 TH SIZE OF
TRADITIONAL
ANTENNA
BANDWIDTH 25X LOWEST
FREQUENCY CLAIMED
(From: R, Mangra, Mil. Antennas 2009)
FRACTAL METAMATERIAL
(NATHAN COHEN, “WIDEBAND CLOAKING SYSTEM”,
US PATENT 8,253,639, 8/28/12 INVISIBILITY CLOAK
• CLOAKING OF A MAN HAS BEEN DEMONSTRATED
BY DR. NATHAN COHEN OF FRACTAL ANTENNA
SYSTEMS, INC. ( HTTP://WWW.FRACTENNA.COM )
• DONE OVER 50% BANDWIDTH AT 1 GHz.
• USED FRACTAL METAMATERIALS.
• METAMATERIALS NOT NEW – GO BACK ALMOST
A CENTURY TO MARCONI AND FRANKLIN
(N. COHEN, FRACTALS, VOL. 20, NOS. 3 & 4 2012, 227‐232) WORLD'S FIRST HUMAN INVISIBILITY CLOAK
PETER BLOCKING SIGNAL
CLOAK
f MHz
PETER
CLOAK
PETER CLOAKED
f MHz
DIAGRAMS SHOWING SUCCESSFUL HUMAN INVISIBILITY CLOAK.
(TOP) PETER BLOCKS 'DIRECT PATH' & REDUCES INTENSITY BETWEEN TWO μWAVE ANTENNAS
(BOTTOM) PETER INSIDE CLOAK, DIVERTS INTENSITY AROUND PETER, & MAKES HIM INVISIBLE
OVER 50% BANDWIDTH AT 1 GHz
(2012 FRACTAL ANTENNA SYSTEMS, INC. SOURCE: FRACTAL ANTENNA SYSTEMS, INC)
COMPARISON OF CLOAKING FRACTAL AND
SPLIT RING RESONATORS SURFACES
(NATHAN COHEN, FRACTALS, NOS. 3 & 4 (2012) 227‐232
CLOAKING OF FLAT PLATE USING FRACTALS
(COHEN ,NATHAN, ED CON 2016, BOSTON; SEE ALSO YOU TUBE)
CLOAKING OF FLAT PLATE USING FRACTALS
0
-10
-20
(COHEN ,NATHAN, ED CON 2016, BOSTON; SEE ALSO YOU TUBE)
1) cloaking is not diffraction. It is guided
surface waves producing an antipodal
traveling wave , enabled with fractal
resonators;
2) the process is manifold-agnostic:
anything can be cloaked. No fancy a
priori manipulation of permeability and
permittivity for the cloaked object is
needed. The cloak doesn't know or care
what it is cloaking, nor its shape.
Nathan Cohen
https://www.youtube.com/watch?v=LFxQEUDIAuk&t=281
METAMATERIAL STEALTH
75% ABSORBTION 8-10 GHZ
META-SKIN*
*EMBEDS INSIDE SILICONE SHEET ROWS OF SPLIT-RING RESONATORS
CONTAINING LIQUID METAL ALLOY GALINSTAN MADE OF GALLIUM, INDIUM, TIN.
(PROF. JIMING SONG & ASSOC. PROF. LIANG DONG OF IOWA STATE UN.)
ABSORBTION DB
META-SKIN
51
(SIMING YANG, ET AL, SCIENTIFIC REPORTS 6, ARTICLE NUMBER: 21921, 2/23/16)
FRACTAL STEALTH:
90% ABSORBSION 2-20 GHZ
99% ABSORBSION 10-15 GHZ
FRACTAL LOOP RESONATORS
DIELECTRIC
SUBSTRATE
RESISTIVE FILM
BACKING
(F. YUE‐NONG, ET AL, CHINA PHYS. B VOL. 22, NO. 6, 2013, 067801) WIDEBAND STEALTHING, <1mm THICK 90% ABSORPTION 2‐20 GHZ; 99%, 10‐15 GHZ
(F. YUE‐NONG, ET AL, CHINA PHYS. B VOL. 22, NO. 6, 2013, 067801) STEALTHING VS POLARIZATION ANGLE
TE
TM
STEALTHING VS INCIDENCE ANGLE
TE
TM
KYMETA MSA*-T ANTENNA DEMONSTRATED
GOAL: LOW COST KU BAND ARRAY
FOR SATELLITE INTERNET COM
*METAMATERIAL SURFACE ANTENNA TECHNOLOGY
LOW $ ELECTRONICALLY STEERED
METAMATERIAL PASSIVE PHASED ARRAY
GROUPS:
1ST INTELLECTUAL VENTURES
 APPLICATION: INTERNET-ON-THE-MOVE
 USES VOLTAGE CONTROL OF EITHER:
– FERRO-ELECTRIC MATERIAL
– MEMS
– LIQUID CRYSTALS
 DEMODED JUNE 2011;
PRODUCTION: LATE 2017
 EFFICIENCY AN ISSUE
2ND GROUP: UN. SIENA, ITALY
(K. M. PALMER, METAMATERIAL BREAKTHROUGH,
IEEE SPECTRUM, 1/12, PP 13.14)
11/9/2017
57
*
*METAMATERIAL SURFACE ANTENNA TECHNOLOGY
*
*METAMATERIAL SURFACE ANTENNA TECHNOLOGY
METAMATERIAL SURFACE ANTENNA TECHNOLOGY (MSA‐T)
• Ka BAND • LAPTOP SIZE, LOW‐COST, 1‐3 KGM
• INSTANTANEOUS BW = 100 MHZ (HIGH DATA RATE)
• OPERATING BW = 1 GHZ
• 1‐4 W RF
• ELECTRONIC SCAN = ± 65o (NO PHASE SHIFTERS)
• POLARIZATION: CIRCULAR, RIGHT OR LEFT
• APPLICATIONS: SATELLITE TO: A/C, RAIL, CAR, HOME • COMPANIES: INTELLECTUAL VENTURES
& KYMETA
• COMMERCIAL DEVELOPMENT BY 2017
(http://www.intellectualventures.com/index.php/inventions‐patents/
our‐inventions/msa‐t; click on: download fact sheet) MSA‐T
PARAMETERS
MSA‐T PARAMETERS
http://www.kymetacorp.com/products/portable‐satellite‐
KYMETA MSA*-T ANTENNA DEMONSTRATED
GOAL: LOW COST KU BAND ARRAY
FOR SATELLITE INTERNET COM
*METAMATERIAL SURFACE ANTENNA TECHNOLOGY
ANTENNA LEAKY WAVE FEED
(US PATENT 2014/0266946 A1, SEPT. 8, 2014)
ANTENNA METAMATERIAL RESONATORS
(US PATENT 2014/0266946 A1, SEPT. 8, 2014)
METAMATERIAL RESONATOR
PHASE SHIFTER
NATHAN KUNDTZ, MJ, AUGUST, 2014
PARALLEL
L/C
MAGNITUDE
& PHASE
(F. TERMAN, RADIO
ENGINEERING,
MCGRAW HILL, 1947)
CLOSE UP OF KYMETA ANTENNA
(http://www.kymetacorp.com/technology/product‐stack/)
CENTER FED CIRCULAR
ARRAY ARCHITECTURE
(FROM INTELLECTUAL VENTURES WEB SITE)
69
SATELLITE ANTENNA
(http://www.kymetacorp.com/technology/product‐stack/)
KYMETA PARTNERS
SATELLITE KU BAND ANT SATELLITE ANT; LQD XTAL DISPLAY TECH
SHIP TERMINALS
AROUND WORLD
A/C TERMINALS ATELLITE MARITIME
SATELLITE ANT
HTTP://WWW.KYMETACORP.COM/COMPANY/
MARITIME
SATEMAMARITIME
SATELLITE & A/C
KA BAND ANTTIME
SATELLITE ANT GOOGLE
INVESTING
$1B IN
$10B INTERNET
SATELLITE
SYSTEM
AIRBUS ZEPHYR 7 DRONES
(PSEUDO-SATELLITES)
FLY AT 65,000 FT, 14 DAYS WITHOUT REFUELING,
44 LB PAYLOAD, 108 FT WINGSPAN
• SMALLER VERSION IN PRODUCTION ALREADY
• GOOGLE, NASA, FACEBOOK ALSO PERSUING USE OF DRONES
https://www.wired.com/2016/06/airbus‐new‐drones‐actually‐high‐flying‐pseudo‐satellites/
IRIDIUM 66 SATELLITE
TELEPHONE SYSTEM
(IEEE AESS Magazine)
IRIDUM Phone
PHOTO COURTESY OF
RAYTHEON
SPACEX FALCON 9 TO LAUNCH 10 IRIDIUM NEXT
SATELLITES IN JAN ( FROM VANDENBERG; 10,000 LBS LOAD
IRIDIUM NEXT SATELLITES: 66 SATS AT
485 S. MILES, 48 BEAMS, L-BAND
ECHODYNE RADARS USING
METAMATERIAL ARRAYS
MESA-D-DEV K-BAND RADAR: FACILITY/BORDER PROTECTION
RANGE >500M FOR MAN TARGET
 60o AZ,  40o EL
MESA-DAA K-BAND RADAR: UAV DETECTION &
AVOIDANCE
RANGE 3KM
 60o AZ,  40o EL
(ECHODYNE WEB PAGE)
MESA-D-DEV K-BAND RADAR
•WIDE FIELD OF VIEW – ±60° in azimuth and ±40° in elevation
•Beam switching speed <1 microsecond
•RANGE – +0dBSm objects at >500 m
•SIZE – 22 x 7.5 x 2.5 cm including packaging
•WEIGHT – 820 grams including packaging
•FREQUENCY – K-band
•POLARIZATION – horizontal
•PLUG AND PLAY – no calibration required
•SINGLE DC POWER SUPPLY – +7 to +28V DC
•SIMPLE CONTROL INTERFACE – USB Type C
•RADAR MODES – short and long range FMCW
(ECHODYNE WEB PAGE)
Table 2;
MESA-DAA K-BAND RADAR (Tentative Specs)
• APPLICATION: Airborne Detect and Avoid (DAA)
for small UAS*
• RANGE: >3KM
• FIELD OF VIEW (FOV): ±60° in azimuth (120° total)
and ±40° in elevation.
Multiple units combined for greater field of view.
• SCANNING SPEED: 1Hz for FOV; To 10Hz for
updating locations of previously detected objects.
* Unmanned Aircraft Systems
(ECHODYNE WEB PAGE)
MESA-X-EUV X-BAND PASSIVE ARRAY:
•
•
•
•
•
•
•
•
•
•
•
FIELD OF VIEW – ±50° in azimuth and ±45° in elevation
Beam Switching Speed: <1 microsecond
SIZE – 2.5 cm (1 in) thick (excl. packaging)
WEIGHT – <1.4 kg (3.1 lb) (excl. packaging)
BROADSIDE GAIN – 19 dBi at 10.15 GHz
POLARIZATION – horizontal
PLUG AND PLAY – no calibration required
SINGLE DC POWER SUPPLY – 12V DC
INTERFACE – serial USB 2.0
RF IN / RF OUT – SMA coax port to user transceiver
PULSED AND CW COMPATIBLE
(ECHODYNE WEB PAGE)
PARC* METAMATERIAL CAR ARRAY
COPYRIGHT2015. PARC, A XEROX COMPANY
HTTP://BLOGS.PARC.COM/2015/10/SELF-DRIVING-CARSNEED-BETTER-DIGITAL-EYES-TO-DETECT-PEDESTRIANS/
*A XEROX COMPANY, NOW METAWAVE
RAYTHEON
EMPLOYEE
BEATS
EINSTEIN
EINSTEIN
DR.ELI
88
DR. ELI AND SARAH PALIN ON
DANCING WITH THE STARS
Photo Copyright  2007 by Eli Brookner
WITH THE ENCOURAGEMENT O
CROWD SOME FOX TROT BY
DRS. ANNA AND ELI.
DR. ELI
APPEARS
3 TIMES
ON CHRONICLE
TV DANCING
(From: Dr. R. Shahidain, Mil. Antennas 2009)
•
•
•
•
250-505 MHZ; G=5-8.2 DB, VSWR <3
~2500 LAYERS; 3.3” THICK (/20 INSTEAD OF /4)
ANISOTROPIC MAGNETIC DIELECTRIC METAMATERIAL ANTENNA
POTENTIAL USES: NGJ* VHF ANTENNA; REPLACE TALL VISIBLE
WHIP ANTENNA ON ARMY VEHICLES; VHF A/C FOPEN ANTENNAS
• ARMY RESEARCH LAB (ARL); CONTRACTED METAMATERIALS INC.
*NEXT GENERATION JAMMER
(ARL, ABERDEEN, MD, JUNE 4, 2014)
TIGHTLY COUPLED DIPOLE ARRAY (TCDA)
 BANDWIDTH: 1:20
 THICKNESS: /40 AT LOWEST FREQ.
 DUAL POLARIZATION
 COLOCATED PHASE CENTERS
 GOOD POLARIZATION IN DIAGONAL
PLANE
 WAIM STRUCTURE
(TECHNOLOGY TODAY,
2014, ISSUE 1)
EA-18G (GROWLER) WITH PODS
(IMAGE: WIKIMEDIA COMMONS}
ON AIRCRAFT CARRIER
(D. MAJUMDAR, “US NAVY NGJ”, FLIGHT GLOBAL, 5/12)
AIRBORNE ATTACK WITH NEXT GENERATION JAMMER SUPPORT (NGJ)
EC-130H
EA-18G
WITH NGJ
F-35
MODIFIED
ESCORT
JAMMING
F-35
NEXT GENERATION JAMMER (NGJ), GAO, 8/13
STANOFF JAMMING
(COMM)
DECOY
JAMMER
AEA* SUPPORT OF STRIKE GROUP
*AEA=AIRBORNE
ELECTRONIC ATTACK
(T. ANDERSON & K. MATHIASMEIER, “AEA SURVIVABILITY”, AIRCRAFT SURVIVABILITY, SUMMER, 2009)
NUMBER OF RADARS
NUMBER OF RADARS VS FREQUENCY
THREAT FREQUENCY SPECTRUM
J. DELISLE, “GaN BASED AESA ENAB;ES NAVY NGJ”, MICROWAVE & RF, 5/30/140
RUSSIAN 2D VHF
VOSTOK CAN STOW OR
DEPLOY IN 8 MIN
CARLO, DEFENCE TODAY, 2008
RUSSIAN VHF 3D AESA RADAR
ACCURACY OF S-BAND
CARLO, DEFENCE TODAY, 2008
RUSSIAN VHF NEBO SVU CAN
STOW OR DEPLOY IN 45 MIN
CARLO, DEFENCE TODAY, 2008
RUSSIAN VHF NEBO UE 3D RADAR; DEPLOYED
AROUND MOSCOW WITH S-400/SA-21
HIGH ANGULAR &
ANGLE RESOLUTION
CARLO, DEFENCE TODAY, 2008
CHINESE UHF JY-26 SKYWATCH DIGITAL AESA 3D
LONG RANGE AIR SURVEILLANCE &
TACTICAL MISSILE DEFENCE (TMD) RADAR
INSTRUMENTED RANGE: 600-800 KM
AZ COV: 360o MECH, ± 45o ELECTRONIC
EL COV: 25o AIR BREATHERS, 70o TMD
500 TRACKS/SCAN
50 DB SCV
MTBCF: >1000 HRS
MTTR: 0.5 HR
PRIME POWER: 175 KW
EAST CHINA RESEARCH INSTITUTE OF ELECTRONIC ENGINEERING
METAMATERIAL GOES
COMMERCIAL
Used In Our Cell Phones
Advantages Of Metamaterial Antennas:
• Antennas 5x Smaller, 1/10th λ
• WIDEBAND: 0.7 to 2.7 GHz
1 Antenna: GPS, Blue Tooth, WiFi, Wi Max
• 2-4 Weeks To Develop; Inexpensive
• Lowers Radiation To User
LG Electronics’ Bl40
Chocolate Phone
(DA,S.,IEEE Spectrum, 9/09; Poilsne, G., “RAYSPAN®
Proprietary Metamaterial Antennas”, ww.rayspan,com;
KIM, ET AL, IEEE AP-S, ‘09)
11/9/2017
107
Using
EBG
2.5
cm
Separation
USING ELECTROMAGNETIC BAND
Equivalent
To
1
m
GAP (EBG) 2.5 CM SEPATION1 M
Vertically-Polarized Planar Antenna
F = 2.72 GHz
Antenna Sizes:
1.12x0.51x0.157 cm;
or λo/10 X λo/22 X λo/70
Isolation: 18 DB without,
42 DB with,
An Increase of 24 DB
Electronic Bandgap
Equivalent to Separating
Antennas by 1 m
(COURTESY OF PROF. K. SARABANDI, UN. OF MICHIGAN;
THANKS ALSO TO JOSEPH MAIT, ARMY RESEARCH LAB, ADELPHI, MD; SEE
K. SARABANDI & Y. J. SONG, “SUBWAVELENGTH TRANSPONDER USING 108
METAMATERIAL ISOLATOR,” IEEE AP TRANS., 7/11, PP 2183-2190)
WIDE ANGLE SCAN USING ELECTROMAGNETIC
BAND GAP (EBG) MATERIAL
 Array w/ Wide Angle Scan & Possibly No Circulator
 Electromagnetic Band-Gap (EBG) Material Between Patch
Layers Shown To Reduce Mutual Coupling By 8 DB
Scanning Range
Scanning range in k-space
1
with 5° tilt
0.8
green: simulated infinite
0.6
array
0.4
red: measured finite array
0.2
blue: specification
0
purple: array with EBG
-0.2
-0.4
-0.6
-0.8
-1
-1
-0.5
0
0.5
1
(COUTESY OF DR. C. FULTON; SEE C. FULTON,"DIGITAL ARRAY
RADAR“, PHD THESIS, PURDUE UN., 12/10; SEE ALSO FULTON, W. &
CHAPPELL , W., IEEE COMCAS 2008)
109109
THIN, LENDS ITSELF TO CONFORMAL ARRAYS.
(C. Renard, et al, Radar 2009, Bordeaux, France)
BREAKTHROUGHS:
METAMATERIAL
MICROWAVE:
GPS ANTENNA
OPTICAL LENS
• MULTIFUNCTION
• THIN, ULTRA-LIGHT
• WIDE-BANDWIDTH
• WIDEBAND
• DUAL
• WAVELENGTH SELECTIVE
POLARIZATION
• CAN ETCH ON DETECTOR
• WIDE SCAN ANGLE
• HIGHER SNR
• CONFORMAL
11/9/2017 111
(RAYTHEON TECHNOLOGY TODAY, 2012, ISSUE 1)
3‐D METAMATERIALS NOW MADE TO ORDER AT VISIBLE WAVELENGTHS
(J. JISCHER ET AL, IEEE SPECTRUM, 2/14P.35‐.)
NANOSTRUCTUAL CERAMICS
 NANOMATERIALS EXHIBIT NEW PROPERTIES
 < 10 nm CERAMIC TUBES ARE NOT BRITTLE
 SPONGELIKE, BUCKLE THEN RECOVER
SHAPE
 SUPER-LIGHT, SUPER-STRONG
 POTENTIAL USE: BATTERY ELECTRODES
FAST CHARGING, LOT OF ENERGY
 PROF. JULIA GREER, CAL TECH
ELECTRON
MICROSCOPE
IMAGE SHOWS
NANO‐LATTICES
(K. BOURZAC, MIT TECHNOLOGY REVIEW, NOV‐DEC, 2014, P. 19)
R, L,C COMPONENTS AT OPTICAL FREQUENCIES
ENGHETA, SCIENCE, 2007
METAMATERIAL L & C IN OPTICAL WAVEGUIDE
METATRONIC CIRCUIT ELEMENTS: (A) CAPACITOR AND (B) INDUCTOR USING OPTICAL
METATRONIC* LAYER, AND USING WAVEGUIDE METAMATERIAL (C) DIELECTRIC WITH
ΕC ACT>0 AND ΕC EFF>0 FOR CAPACITOR, (D) DIELECTRIC WITH ΕL ACT>0 AND ΕL
EFF<0 FOR INDUCTOR. *METAMATERIAL-INSPIRED LUMPED CIRCUITRY.
LI & ENGHETA, URSI, 2016
CLOAKING
11/9/2017
116
116
HTTPS://WWW.YOUTUBE.COM/WATCH?V=JSEHPNQXLP
VISIBLE SPECTRUM
(WIKIPEDIA)
(WIKIPEDIA)
VISIBLE LIGHT CLOAKING OF ARBITRARY SURFACE
=730 NM (RED LIGHT) 80 NM CLOAK (1/9TH  THICK)
(X. NI*, ET AL, SCIENCE, 18 SEPTEMBER 2015, VOL 349, ISSUE 6254, PP 1310-1314;
*UN CAL, BERKELEY, 6254, EMAIL: XIANG@BERKELEY.EDU)
HOW TO MAKE AN 'INVISIBILITY
CLOAK' AT HOME FOR UNDER $100
ROCHESTER UN.
How To Make An 'Invisibility Cloak' At Home For
Under $100
(HTTP://WWW.BUSINESSINSIDER.COM/HOW‐TO‐MAKE‐A‐
ROCHESTER‐INVISIBILITY‐CLOAK‐2014‐9)
METAMATERIAL BOOKS
(AFTER S. MACI, UN. SIENA, SIENA, ITALY)
METAMATERIALS NOT NEW: USED BY MARCONI & FRANKLIN IN 1919 PATENT
HTTPS://WWW.YOUTUBE.COM/WATCH?V=JSEHPNQXLP
70 nm GOLD AND SILVER PARTICALS
https://www.youtube.com/watch?v=jseHPnqXlPY
HTTPS://WWW.YOUTUBE.COM/WATCH?V=JSEHPNQXLP
METAMATERIALS
CONSTRUCTION
ε<0
µ<0
n<0
(DEROV, J.S., ET AL, AFRL, CAMBRIDGE, ALLERTON, 2008)
PERMITTIVITY
PERMEABILITY
PERMITTIVITY
(SEE: DAVID R. SIMITH, DUKE UN. 4/13; http://www.youtube.com/watch?v=Ei0K5_qUoaA)
(SEE: DAVID R. SIMITH, DUKE UN. 4/13; http://www.youtube.com/watch?v=Ei0K5_qUoaA)
METAMATERIAL TYPES
ELECTRIC
I‐BEAM SPLIT
NON‐
RESONATOR
RING RESONATOR
H
E
ϵ(f)=
1+(fp/fo)2
RESONATOR
μ(f)=1‐c[f/(f‐fr
)]2
E
ϵ(f)=1‐c[f/(f‐fr)]2
(SEE: DAVID R. SIMITH, DUKE UN. 4/13; http://www.youtube.com/watch?v=Ei0K5_qUoaA)
(Steven J. Weiss, US Army Research Laboratory, Adelphi, MD, IWEM IV, (International workshop
on Electromagnetic Metamaterials) Hyatt Regency Tamaya Resort,Albuquerque, NM, 8, 11, 2010)
BROOKNER BREAKTHROUGH REFS:
RadarConf 2008, Rome, Breakthroughs, 6/08
Microwave J. (MJ) 1/2008, Breakthrus
RadarConf 2007, Boston
Military Radar Conf. 10/09, 10/08, 10/07, Breakthrus
Radar 2007, Bangalor, India, Breakthrus
RF Alliance Conf.: Enabling Multi-antenna & Broadband Systems, Ap
5-6, 2010, Breakthrus
IEEE Array-2010, Boston, Breakthrus
Microwave J. 1/2013, MIMO
ARRAY-2013, Boston, “MIMO” & “Breakthrus”, 10/13
Radar-2014, Lille, France, 10/14
8th Military Radar Summit 2/15, VA, ‘MIMO’; ‘Breakthrus’
Radar-2015, VA, MIMO, 5/15
IET Radar-2015, Breakthrus, 10/15, Hangzhou, CHINA
IET Radar-2015, MIMO, 10/15, Hangzhou, CHINA
Microwave J. 11/2016, Radar & Phased Array Breakthrus
ARRAY-2016, Advances and Breakthrus in Radar and Phased-Arrays
Metamaterial Advances for Radar and Communications, IET Radar-20
136
11/9/2017
138
TAKE 2 TRANSISTORS …. AND
CALL ME IN THE MORNING
Pat Arena
11/9/2017
142
PASSIVE CLOAKING USING DIAMAGNETICS
& SUPERCONDUCTIVITY (DIAMAGNETICS, WIKIPEDIA; AND CLOAKING, DOES IT WORK?, MOTICONE & ALU, PHYSICAL REV, 2013)
SUPERCONDUCTIVITY & DIAMAGNETICS (SUPERCONDUCTIVITY, WIKIPEDIA)
PASSIVE CLOAKING USING DIAMAGNETICS
& SUPERCONDUCTIVITY (DO CLOAKED OBJECTS REALLY SCATTER LESS?, MOTICONE & ALU, PHYSICAL REV, 2013)
(DEROV, J.S., ET AL, AFRL, CAMBRIDGE, ALLERTON, 2008)
ANTENNA PATTERN FOR SINGLE BEAM
(US PATENT 2014/0266946 A1, SEPT. 8, 2014)
FRACTAL METAMATERIAL
STEALTHING
• STEALTHING SIMULATION USING
THIN (<1 mm) METAMATERIAL
ABSORBER (MA)
• 90% ABSORPTION FROM 2 TO 20 GHZ
• 99% ABSORBSION 10-15 GHZ
• POLARIZATION & ANGLE INSENSITIVE
• DOES NOT PROVIDE STEALTH
FOR BISTATIC RADAR
(F. YUE‐NONG, ET AL, CHINA PHYS. B VOL. 22, NO. 6, 2013, 067801) 
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