A guidance to intelligent metamaterials and metamaterials intelligence
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 29, 2025
Язык: Английский
Progress on intelligent metasurfaces for signal relay, transmitter, and processor
Light Science & Applications,
Год журнала:
2025,
Номер
14(1)
Опубликована: Фев. 25, 2025
Abstract
Pursuing
higher
data
rate
with
limited
spectral
resources
is
a
longstanding
topic
that
has
triggered
the
fast
growth
of
modern
wireless
communication
techniques.
However,
massive
deployment
active
nodes
to
compensate
for
propagation
loss
necessitates
high
hardware
expenditure,
energy
consumption,
and
maintenance
cost,
as
well
complicated
network
interference
issues.
Intelligent
metasurfaces,
composed
number
subwavelength
passive
or
meta-atoms,
have
recently
found
be
new
paradigm
actively
reshape
environment
in
green
way,
distinct
from
conventional
works
passively
adapt
surrounding.
In
this
review,
we
offer
unified
perspective
on
how
intelligent
metasurfaces
can
facilitate
three
manners:
signal
relay,
transmitter,
processor.
We
start
by
basic
modeling
channel
evolution
passive,
metasurfaces.
Integrated
various
deep
learning
algorithms,
cater
ever-changing
environments
without
human
intervention.
Then,
overview
specific
experimental
advancements
using
conclude
identifying
key
issues
practical
implementations
surveying
directions,
such
gain
knowledge
migration.
Язык: Английский
Twisted Metasurfaces for On‐Demand Focusing Localization
Advanced Optical Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 5, 2024
Abstract
Dynamic
focusing
of
electromagnetic
(EM)
waves
is
a
cornerstone
in
various
applications,
encompassing
aerospace
communication,
sensing,
and
high‐resolution
imaging.
Recently,
the
advent
intelligent
metasurfaces,
hailed
as
next
evolutionary
step,
has
revolutionized
self‐adaptive
functionalities.
However,
their
extensive
embeddings
active
components
pose
great
challenge
associated
with
escalated
costs,
heightened
power
consumption,
increased
complexity,
thus
hindering
large‐scale
implementation.
Here,
cost‐effective
approach
for
dynamic
EM
utilizing
twisted
metasurface
introduced,
which
integrates
transmissive
layer
reflective
cascade
fashion.
This
innovative
design
leverages
mutual
rotation
between
two
layers
to
enable
precise
manipulation
beam
propagation
scanning
area,
allowing
flexible
localization
focal
point
across
wide
range,
spanning
−44.17°
44.17°
elevation
0°
360°
azimuth.
capability
underpinned
by
strategic
fusion
multiple
phase
profiles,
including
gradient
Gaussian
phase.
In
experiment,
goal‐oriented
system
built
up
whose
outcomes
demonstrate
striking
alignment
simulated
results,
achieving
correlation
coefficient
96.7%.
work
presents
streamlined
pathway
toward
related
applications
constrained
space
limitations.
Язык: Английский
Orthogonal‐Based Reconfigurable Light‐Controlled Metasurface for Multichannel Amplitude‐Modulation Communication
Laser & Photonics Review,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 16, 2024
Abstract
Optical‐control
reconfigurable
metasurfaces
can
avoid
crosstalk
between
microwave
signal
and
direct
current
(DC)
caused
by
physical
wire
connection,
which
paves
a
paradigm
for
dynamically
remotely
controlling
electromagnetic
(EM)
wave.
However,
the
traditional
light‐controlled
mainly
focus
on
modulation
of
single
polarized
EM
wave,
is
difficult
to
adapt
various
signals
in
communication.
In
this
work,
photoresistor
fully
embedded
into
meta‐atom
as
an
active
device,
metasurface
(LCRM)
with
multi‐polarization
amplitude
modulations
proposed.
The
designed
controls
luminous
intensity
light
emitting
diode
(LED)
array
through
computer,
then
adjusts
value,
achieve
modulations.
order
verify
feasibility
effectiveness
proposed
framework,
simulated,
fabricated,
measured,
measurement
results
are
basically
consistent
theoretical
simulation
results.
Based
characteristics
metasurface,
linear
(LP)
wave
synthesis
information
transmission
carried
out
demonstrate
design.
This
work
designs
under
orthogonal‐polarization
incidence
expand
LCRM
application,
has
broad
development
prospects
many
fields
such
transmission,
communication
systems,
holographic
imaging.
Язык: Английский
A Conformal Transmissive Metasurface with Dual‐Band Dual‐Circularly Polarized Conversion and Low Scattering
Advanced Physics Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 25, 2024
Abstract
Generally,
the
existing
metasurfaces
are
periodically
or
non‐periodically
planar
micro‐structures,
which
hardly
satisfy
practical
applications
such
as
stealth
aircraft,
carrier
and
so
on.
In
order
to
meet
application,
a
conformal
transmissive
metasurface
proposed
with
multi‐function
of
converting
linear
polarization
into
dual‐circular
in
dual‐band
low
scattering
for
incidences.
The
composed
non‐metallic
dielectric
material
polyvinyl
chloride
ultra‐thin
conventional
achieve
flexible
configuration.
mechanism
is
illustrated
by
characteristic
parameters,
electric
field
distributions,
equivalent
circuit.
simulated
results
demonstrate
that
can
transform
y
‐polarized
waves
right‐handed
circularly
polarized
6.8–10.3
GHz
left‐handed
18.77–21.15
GHz,
while
vice
versa
x
waves.
Additionally,
shows
an
excellent
section
reduction
operational
frequency
above
10
dB
be
realized
increases.
A
sample
fabricated
printed
circuit
board
(PCB)
3D
printing
technology,
measured
microwave
anechoic
chamber
conforms
results.
transmission
holds
significant
promise
radomes
electromagnetic
shielding.
Язык: Английский