Design and Analysis of Dual-Band Metasurface Filter for Pulse Waves Based on Capacitive Nonlinear Circuits
Electronics,
Journal Year:
2025,
Volume and Issue:
14(3), P. 603 - 603
Published: Feb. 4, 2025
In
this
paper,
a
novel
dual-band
metasurface
filter
(MSF)
designed
for
accurately
differentiating
pulse
waves
(PWs)
and
continuous
(CWs)
is
proposed,
which
based
on
complementary
cross
resonator
(CSR)
structure
adhered
dielectric
substrate
integrated
with
capacitive
nonlinear
circuit.
The
unit
cell
of
the
MSF
comprises
two
identical
CSR
structures:
one
circuits
configured
in
parallel
capacitor
(C1)
within
structure.
These
structures
loaded
are
fabricated
substrate.
simulation
outcomes
reveal
that,
normally
incident
CWs
an
input
power
10
dBm,
transmittance
reaches
as
high
97.1%
at
2.0
GHz
93.9%
3.45
GHz.
contrast,
when
it
comes
to
50
ns
short
PWs,
remains
consistently
below
6%
throughout
entire
frequency
range
from
1
5
addition,
PWs
increases
significantly
width
widens
aforementioned
discrete
frequencies.
ensuing
data
corroborates
that
−15
15
difference
between
first
rises
then
falls
increases.
Specifically,
specified
dBm
angle
oblique
incidence
ranges
0°
60°,
context
TE
TM
modes,
exceeds
80%
around
both
GHz,
while
15%.
Finally,
effects
resistance
capacitance
also
studied.
proposed
herein
showcases
its
potential
applications
wireless
communication
well
realm
anti-electromagnetic
interference.
electromagnetic
(EM)
waveform
modulation
band
1–5
has
great
development
prospects
low-frequency
working
fields
such
radar
antennas
EM
protection.
Language: Английский
Broadband metasurface-based reflective polarization converter
Frequenz,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 28, 2025
Abstract
This
paper
investigates
a
metasurface-based
broadband
polarization
converter
(BPC).
Notably,
to
achieve
working
frequency
region
(4.22–10.73
GHz),
single
substrate
layer
is
used
instead
of
several
layers.
The
design
device
converts
an
incidence
wave
that
linearly
polarized
(LP)
into
reflected
cross-polarized
(CrP)
over
the
range
4.22–10.73
GHz
up
oblique
incident
angle
20°.
In
addition,
fabricated,
and
there
strong
agreement
between
modeling
measurement
results.
Language: Английский
A metasurface with three different configurations for absorption, transmission or reflection of incident electromagnetic waves
Frequenz,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 8, 2024
Abstract
This
paper
presents
a
metasurface
with
three
different
useable
configurations.
The
full
consists
of
PTFE
enclosure
having
12
compartments
sandwiched
between
two
layers
2D
periodic
metallic
patterned
FR-4
substrates.
can
be
kept
empty
or
filled
deionized
(DI)
water.
first
configuration
is
achieved
when
all
the
are
empty,
second
alternate
DI
water,
and
third
has
In
configuration,
acts
as
normal
electromagnetic
(EM)
wave
reflector,
in
it
dual-band
spatial
passband
filter
which
allows
EM
waves
within
certain
frequency
bands
to
pass
through
multiband
absorber.
operate
S
C
microwave
bands.
thickness
entire
structure
only
13.04
mm,
corresponds
around
λ
0
/3.7
(
free
space
wavelength
at
highest
operating
band).
transmission
absorption
have
good
angular
stabilities
up
an
incident
angle
60°.
Language: Английский