Inter
national
J
our
nal
of
Electrical
and
Computer
Engineering
(IJECE)
V
ol.
8,
No.
2,
April
2018,
pp.
917
–
925
ISSN:
2088-8708
917
I
ns
t
it
u
t
e
o
f
A
d
v
a
nce
d
Eng
ine
e
r
i
ng
a
nd
S
cie
nce
w
w
w
.
i
a
e
s
j
o
u
r
n
a
l
.
c
o
m
A
Status
Data
T
ransmitting
System
f
or
V
essel
Monitoring
The
Anh
Nguy
en
Dinh
1
,
Huy
Le
Xuan
2
,
T
uan
Anh
V
u
3
,
and
Duong
Bach
Gia
4
1,2
V
ietnam
National
Space
Center
,
V
ietnam
Academy
of
Science
and
T
echnology
,
V
ietnam
3,4
VNU
Uni
v
ersity
of
Engineering
and
T
echnology
,
V
ietnam
Article
Inf
o
Article
history:
Recei
v
ed
September
7,
2017
Re
vised:
Jan
3,
2018
Accepted:
Jan
28,
2018
K
eyw
ord:
Marine
communications
W
ideband
synthesizer
Mix
er
VCO-PLL
Horn
antenna
ABSTRA
CT
This
paper
presents
a
status
data
transmitting
system
suitable
for
v
essel
monitoring.
The
system
consists
of
four
main
parts,
which
are
a
frequenc
y
synthesizer
,
a
horn
antenna,
a
status
data
module
and
a
po
wer
amplifier
.
The
proposed
frequenc
y
synthesizer
can
fle
xibly
change
the
frequenc
y
in
a
wide
range
(from
600
MHz
to
4.2
GHz)
and
the
output
po
wer
(from
-6
dBm
to
-3
dBm).
By
using
the
phase-lock
ed
loop,
the
synthesizer’
s
stability
o
v
er
temperature
and
tolerance
are
comparable
to
temperature
compensated
crystal
oscillators
(TCXO)
that
is
about
+/-
3
ppm.
Moreo
v
er
,
phase
noise
performance
of
the
synthesizer
is
less
tha
n
-90
dBc/Hz
at
1
KHz
and
-
100
dBc/Hz
at
100
KHz.
The
impedance
bandwidth
of
the
horn
antenna
can
be
controlled
by
using
the
be
v
eling
technique.
The
status
data
module
packs
information
of
the
identification,
longitude,
latitude,
and
state
of
the
v
essel
into
data
frames.
FSK/
MSK/GMSK
schem
es
were
used
to
modulate
the
data.
The
po
wer
amplifier
pro
vides
130
W
output
po
wer
at
S-band.
The
fundamental
characteristics
of
the
implemented
transmitter
ha
v
e
been
measured
and
v
erified.
Copyright
c
2018
Institute
of
Advanced
Engineering
and
Science
.
All
rights
r
eserved.
Corresponding
A
uthor:
Name:
The
Anh
Nguyen
Dinh
Af
filiation:
V
ietnam
National
Space
Center
(VNSC),
V
ietnam
Academy
of
Science
and
T
echnology
Address:
VNSC
Building
(A6),
18
Hoang
Quoc
V
iet,
Hanoi,
V
ietnam
Phone:
+84
0902061090
Email:
ndtanh@vnsc.or
g.vn
1.
INTR
ODUCTION
Recently
,
maritime
security
has
become
a
major
concern
of
all
coastal
countries,
and
the
fundamental
requirement
is
maritime
domain
a
w
areness
via
identification,
tracking,
and
monitoring
of
v
essels
within
their
w
aters
[1].
Ref.
[1]
briefly
presented
the
recent
technologies
and
systems
for
dif
ferent
types
of
v
essels.
These
systems
ha
v
e
been
designed
and
pro
vided
with
a
re
gulatory
frame
w
ork
for
other
reasons
such
as
sustainable
fishery
,
search
and
rescue
services,
en
vironmental
protection,
na
vig
ational
safety
,
etc.
Ho
we
v
er
,
the
main
problem
is
the
distance
of
communications.
The
con
v
entional
methods
such
as
GSM,
UHF
,
VHF
are
limited
by
the
communication
distance,
which
is
less
than
100
km
[2],
[3].
Recently
,
satellite
technology
has
e
xtremely
de
v
eloped
and
become
the
best
method
to
solv
e
the
abo
v
e
problem
[4].
In
this
paper
,
we
are
going
to
present
the
designs
and
measurement
results
of
a
status
data
transmitting
system
as
illustrated
in
Fig.
1.
The
system
is
able
to
fle
xibly
change
the
transmitting
parameters
such
as
frequenc
y
,
po
wer
le
v
el,
mode
of
modulation,
and
state
of
a
v
ehicle.
In
addition,
the
frequenc
y
stability
o
v
er
temperature
and
frequenc
y
tolerance
of
the
system
are
+/-
2.5
ppm
and
+/-
3
ppm,
respecti
v
ely
.
The
paper
is
or
g
anized
as
follo
w
.
Section
2
introduces
the
architectures
of
the
proposed
status
data
transmitting
system
including
detailed
descriptions
of
each
b
uilding
block.
The
results
are
presented
in
section
3
and
conclusions
are
gi
v
en
in
the
last
section.
2.
DESIGN
OF
THE
ST
A
TUS
D
A
T
A
TRANSMITTING
SYSTEM
The
information
is
pack
ed
into
data
frames
including
the
identificati
on,
longitude,
latitude,
and
state
of
a
v
essel
(
<
GPS
>
,
<
ID
>
,
<
LA
T
>
,
<
LONG
>
,
<
SOS
>
).
The
proposed
status
module
uses
ADF7021
transcei
v
er
from
Analog
De
vice
to
process
the
data.
The
ADF7021
transcei
v
er
is
a
high
performance,
lo
w
po
wer
,
highly
in-
te
grated
2FSK,
3FSK,
4FSK,
MSK,
GMSK
transcei
v
er
.
It
is
designed
to
operate
in
the
narro
w-band,
license-free
J
ournal
Homepage:
http://iaescor
e
.com/journals/inde
x.php/IJECE
I
ns
t
it
u
t
e
o
f
A
d
v
a
nce
d
Eng
ine
e
r
i
ng
a
nd
S
cie
nce
w
w
w
.
i
a
e
s
j
o
u
r
n
a
l
.
c
o
m
,
DOI:
10.11591/ijece.v8i2.pp917-925
Evaluation Warning : The document was created with Spire.PDF for Python.
918
ISSN:
2088-8708
Da
ta
T
he
F
re
qu
e
ncy
Sy
nthesizer
M
o
d
u
la
t
o
r
M
i
x
e
r
RF
A
m
p
li
fier
An
te
n
n
a
M
i
x
e
r
De
m
o
d
u
la
t
o
r
Lo
w
No
ise
A
m
p
li
fier
An
te
n
n
a
Da
ta
IF
RF
RF
IF
T
RA
NSMITT
E
R
RECEI
VER
Figure
1.
The
proposed
status
data
transmitting
system
ISM
bands,
and
in
the
licensed
bands
with
frequenc
y
ranges
from
80
MHz
to
650
MHz
and
862
MHz
to
950
MHz.
This
de
vice
has
both
Gaussian
and
raised
cosine
transmitting
data
filtering
options
to
impro
v
e
spectral
ef
ficienc
y
for
narro
w-band
applications.
A
LC
bandpass
filter
w
as
designed
to
ha
v
e
50
dB
out-of-band
attenuation
for
the
sup-
pression
of
harmonics
as
sho
wn
in
Fig.
2.
In
this
design,
the
status
data
module
is
inte
grated
with
a
L
TC5510
mix
er
from
Linear
T
echnology
.
The
L
TC5510
is
a
h
i
gh
linearity
mix
er
optimized
for
applications
requiring
v
ery
wide
input
bandwidth,
lo
w
distortion,
a
nd
lo
w
LO
leakage.
The
mix
er
includes
a
double-balanced
acti
v
e
mix
er
with
an
input
b
uf
fer
and
a
high
speed
LO
amplifier
.
The
input
is
optimized
to
use
with
1:1
t
ransmission
line
baluns,
allo
wing
v
ery
wideband
impedance
matching.
Measurement
results
of
the
status
module
were
presented
in
[5].
Figure
2.
The
proposed
status
module
45
W
W
45
W
W
45W
W
45W
W
A
h
i
g
h
p
ow
e
r
am
p
li
f
ier
0
÷
5W
130W
W
Figure
3.
The
structure
of
the
Po
wer
Amplifier
The
80
W
and
130
W
po
wer
amplifiers
were
presented
in
[6]
and
[7],
respecti
v
ely
.
The
simulation
results
were
obtained
using
a
well-kno
wn
professional
design
softw
are
for
micro
w
a
v
e
engineering,
Adv
anced
Design
Sys-
tem
2009.
The
performance
of
the
po
wer
amplifier
modules
were
v
erifi
ed
e
xperimentally
using
a
v
ector
netw
ork
IJECE
V
ol.
8,
No.
2,
April
2018:
917
–
925
Evaluation Warning : The document was created with Spire.PDF for Python.
IJECE
ISSN:
2088-8708
919
analyzer
.
As
illustrated
in
Fig.
3,
a
high
po
wer
amplifier
based
on
tw
o
mentioned
amplifier
modules
w
as
f
abricated.
Measurement
results
sho
w
that
the
po
wer
amplifier
obtains
a
maximum
output
po
wer
of
130
W
at
S-band.
2.1.
The
Fr
equency
Synthesizer
In
general,
high
speed
frequenc
y
synthesizers
are
di
vided
into
tw
o
types
including
digital
direct
synthesizer
(DDS)
and
phase-look
ed
loop
(PLL)
frequenc
y
synthesize
r
.
The
DDS
has
high
c
o
n
v
ersi
o
n
rate
and
high
frequenc
y
resolution.
Ho
we
v
er
,
the
dra
wback
of
DDS
is
that
it
is
not
fle
xible
in
changing
the
step
of
the
transmitting
frequenc
y
.
As
a
result,
DDS
is
not
suitable
for
maritime
applications.
In
comparison
with
DDS,
PLL
synthesizer’
s
adv
antages
are
high
spurious
suppression,
relati
v
ely
simple
frequenc
y
control,
and
achie
v
able
broadband
frequenc
y
source
[8]
[9].
The
main
part
of
PLL
frequenc
y
synthesizer
is
a
phase-look
ed
l
oop.
The
phase-look
ed
loop
is
a
phase
feedback
system.
It
mainly
consists
of
a
VCO,
loop
filter
(LF),
and
a
phase
comparator
(PC).
Through
the
phase
comparator
,
the
output
frequenc
y
of
VCO
can
accurately
track
the
change
of
the
input
signal
[10]
[11].
In
this
design,
the
PLL
frequenc
y
synthesizer
w
as
emplo
yed.
The
frequenc
y
synthesizer
based
on
the
ADF4350’
s
inte
grated
PLL
and
the
STM32F103C8
microcontroller
are
designed
and
implemented
[12],[13].
The
block
diagram
of
the
frequenc
y
synthesizer
is
illustrated
in
Fig.
4.
R
ef
er
e
n
ce
o
s
cillato
r
R
D
iv
id
er
P
h
ase
Dete
cto
r
C
h
ar
g
e
P
u
m
p
L
o
o
p
Fil
ter
VC
O
N
Div
id
er
VCO
-
P
L
L
C
i
r
cui
t
(
A
DF
4
3
5
0
)
C
o
ntr
o
l a
nd
Dis
p
la
y
C
i
r
cuit
(
STM
3
2
F
1
0
3
)
P
o
w
er Sup
p
ly
Figure
4.
The
block
diagram
of
the
frequenc
y
synthesizer
Figure
5.
The
horn
antenna
2.2.
The
Hor
n
Antenna
Horn
antennas
are
one
kind
of
aperture
antennas
as
sho
wn
in
Fig.
5,
which
pro
vides
the
moderately
high
g
ain
compared
to
other
antennas.
The
y
are
no
w
commonly
used
for
man
y
applications
including
micro
w
a
v
e
commu-
nications,
feeds
for
reflector
antennas
and
radar
elements.
Horn
antennas
pro
vide
high
g
ain,
lo
w
VSWR,
relati
v
ely
wide
bandwidth
and
high
po
wer
handling
properties.
Recently
,
man
y
techniques
ha
v
e
been
proposed
for
wideband
planar
monopole
antennas
such
as
notches,
be
v
eling,
lumped
circuit,
and
v
arious
shapes.
In
this
design,
we
ha
v
e
applied
the
be
v
eling
technique
to
control
the
impedance
bandwidth
and
increase
the
bandwidth
with
good
control
of
the
edge
frequenc
y
.
A
Status
Data
T
r
ansmitting
System
...
(The
Anh
Nguyen
Dinh)
Evaluation Warning : The document was created with Spire.PDF for Python.
920
ISSN:
2088-8708
3.
MEASUREMENT
RESUL
TS
3.1.
The
Fr
equency
Synthesizer
In
order
to
v
alidate
the
performance
of
the
frequenc
y
synthesizer
,
a
prototype
w
as
f
abricated
as
sho
wn
in
Fig.
6.
The
control
and
display
circuit
w
as
f
abricated
on
tw
o-layer
FR4
material
with
the
dimension
of
7
cm
14
cm.
The
PLL
with
inte
grated
VCO
w
as
f
abricated
on
multi-layer
s
board
technology
with
a
small
dimension
of
5.5
cm
6
cm
while
the
output
impedance
is
matched
o
v
er
the
wide
frequenc
y
band.
In
total,
the
designed
frequenc
y
synthesizer
has
a
dimension
of
9
cm
16cm
3.5
cm.
The
proposed
frequenc
y
synthesizer
w
as
measured
using
a
Figure
6.
The
f
abricated
frequenc
y
synthesizer
Rohde
&
Schw
arz
spectrum
analyzer
.
Fig.
7
sho
ws
the
measured
output
po
wer
of
the
proposed
synthesizer
.
As
can
be
seen
in
the
figure,
the
output
po
wer
is
from
-6
dBm
to
-3
dBm
o
v
er
a
wide
frequenc
y
range.
The
operational
frequenc
y
can
be
fle
xibly
changed
from
600
MHz
to
4.2
GHz.
W
ith
the
proposed
design,
the
frequenc
y
stability
o
v
er
temperature
and
frequenc
y
tolerance
are
comparable
to
TCXO
that
are
+/-
2.5
ppm
and
+/-
3
ppm,
respecti
v
ely
.
Fig.
8
sho
ws
the
phase
noise
performance
which
is
less
than
-90
dBc/Hz
at
1
KHz
and
-100
dBc/Hz
at
100
KHz.
T
able
1
summarizes
the
performance
of
the
proposed
frequenc
y
synthesizer
and
compares
it
to
other
published
designs
operating
in
a
similar
frequenc
y
range.
Figure
7.
The
measured
output
po
wer
of
the
proposed
synthesizer
3.2.
The
Hor
n
Antenna
All
designs
and
simulations
of
the
horn
antenna
were
carried
out
using
CST
Micro
w
a
v
e
Studio.
After
opti-
mizing,
a
prototype
antenna
w
as
f
abricated
as
sho
wn
in
Fi
g
.
9.
It
is
then
measured
by
using
the
V
ector
Netw
ork
An-
alyzer
(VN
A)
and
NSI
2000
Near
-field
System.
Fig.
10
illustrates
the
feed
probes
of
the
horn
antenna.
A
monopole
(a)
is
chosen
for
horn
antennas.
In
this
design,
the
be
v
eling
technique
(b,c)
is
used
to
impro
v
e
the
bandwidth
of
the
antenna.
The
edge
frequencies
can
be
controlled
by
be
v
eling
all
sides
of
the
feed
probe
(d1,d2,l1,l2,b1,b2).
Fig.
11
IJECE
V
ol.
8,
No.
2,
April
2018:
917
–
925
Evaluation Warning : The document was created with Spire.PDF for Python.
IJECE
ISSN:
2088-8708
921
1
k
1
0
k
1
0
0
k
1
M
1
0
M
-
1
6
0
-
1
5
0
-
1
4
0
-
1
3
0
-
1
2
0
-
1
1
0
-
1
0
0
-
9
0
-
8
0
P
h
a
s
e
N
o
i
s
e
(
d
B
c
/
H
z
)
F
r
e
q
u
e
n
c
y
(
H
z
)
m
e
a
s
u
r
e
m
e
n
t
S
i
m
u
l
a
t
i
o
n
Figure
8.
The
measured
and
simulated
phase
noise
of
the
proposed
sysnthesizer
T
able
1.
Comparison
with
the
recent
published
w
orks
References
Frequenc
y
(MHz)
Phase
noise
(dBc/Hz)
Ref.
[14]
3385-3457
better
than
-80
at
20
KHz
Ref.
[15]
800-4000
-
Ref.
[16]
137.5-4400
-90
at
100
KHz
Ref.
[17]
210-4400
better
than
-80
at
1
KHz
This
w
ork
600-4200
-90
at
1
KHz,
-100
at
20
KHz,
-110
at
100
KHz
sho
ws
the
simulated
input
return
loss
of
the
horn
antenna
in
three
cases.
In
the
first
case,
the
feed
probe
is
a
monopole
as
illustrated
in
Fig.
10a.
The
bandwidth
of
the
antenna
is
about
500
MHz.
In
the
second
case,
when
the
feed
probe
is
be
v
eled
as
depicted
in
Fig.
10b,
the
bandwidth
is
e
xtended
from
500
MHz
to
1000
MHz.
In
the
third
case,
the
bandwidth
is
increased
from
1000
MHz
to
1200
Mhz
when
the
feed
probe
as
sho
wn
in
Fig.
10c
is
used.
The
designed
antenna
can
operate
at
both
L
band
and
S
band.
Fig.
12
plots
the
measured
and
simulated
input
return
loss
of
the
designed
antenna.
As
can
be
seen,
the
measured
result
sho
ws
a
good
agreement
with
the
simulated
one.
The
g
ain
of
the
antenna
is
sho
wn
in
Fig.
13.
It
archi
v
es
a
maximal
g
ain
of
17.5
dBi
at
2.8
GHz.
Fig.
14
and
Fig.
15
sho
w
the
radiation
pattern
and
beamwidth
of
the
designed
antenna
with
v
ery
lo
w
sidelobes.
T
able
2.
Dimensions
of
the
proposed
antenna
P
arameters
V
alue
(mm)
L
385
W
290
H
398
Figure
9.
Measuring
the
antenna
with
NSI
2000
Near
Field
System
A
Status
Data
T
r
ansmitting
System
...
(The
Anh
Nguyen
Dinh)
Evaluation Warning : The document was created with Spire.PDF for Python.
922
ISSN:
2088-8708
Figure
10.
Feed
probes
of
the
horn
antenna
1
.
0
1
.
5
2
.
0
2
.
5
3
.
0
3
.
5
-
4
5
-
4
0
-
3
5
-
3
0
-
2
5
-
2
0
-
1
5
-
1
0
-
5
0
5
S
1
1
(
d
B
)
F
r
e
q
u
e
n
c
y
(
G
H
z
)
W
i
t
h
b
e
v
e
l
i
n
g
2
W
i
t
h
o
u
t
b
e
v
e
l
l
i
n
g
W
i
t
h
B
e
v
e
l
l
i
n
g
1
5
0
0
M
H
z
1
0
0
0
M
H
z
1
2
0
0
M
H
z
Figure
11.
Bandwidth
impro
v
ement
by
using
be
v
elling
technique
1
.
0
1
.
5
2
.
0
2
.
5
3
.
0
3
.
5
-
3
5
-
3
0
-
2
5
-
2
0
-
1
5
-
1
0
-
5
0
S
1
1
(
d
B
)
F
r
e
q
u
e
n
c
y
(
G
H
z
)
M
e
a
s
u
r
e
m
e
n
t
S
i
m
u
l
a
t
i
o
n
Figure
12.
The
measured
and
simulated
input
return
loss
of
the
designed
horn
antenna
1
.
4
1
.
6
1
.
8
2
.
0
2
.
2
2
.
4
2
.
6
2
.
8
3
.
0
3
.
2
0
2
4
6
8
1
0
1
2
1
4
1
6
1
8
G
a
i
n
(
d
B
)
F
r
e
q
u
e
n
c
y
(
G
H
z
)
G
a
i
n
Figure
13.
The
measured
g
ain
of
the
designed
horn
antenna
3.3.
The
Pr
oposed
System
The
information
of
v
ehicles
is
displayed
on
computers’
screen
by
using
our
softw
are.
This
helps
the
o
wners
monitor
the
information
and
the
state
of
the
v
essels
as
well
as
increase
t
he
safety
on
the
sea.
The
proposed
system
w
as
tested
in
a
small
area
within
a
radius
of
2
km
.
The
result
is
illustrated
in
Fig.
16,
17.
Our
softw
are
uses
the
IJECE
V
ol.
8,
No.
2,
April
2018:
917
–
925
Evaluation Warning : The document was created with Spire.PDF for Python.
IJECE
ISSN:
2088-8708
923
Figure
14.
The
measured
radiation
pattern
of
the
designed
horn
antenna
Figure
15.
The
measured
beamwidth
of
the
designed
horn
antenna
Figure
16.
An
e
xample
for
tracking
the
signs
of
one
v
ehicle
of
fline
Google
map,
which
helps
the
u
s
ers
determine
the
direction
of
mo
v
ement.
The
red
line
is
the
route
of
one
tar
get.
Beside
the
digital
map,
the
softw
are
is
capable
of
tracking
and
displaying
the
position
of
the
v
essels
on
XY
axis
coordinates,
and
calculating
the
distanc
e
from
the
v
essels
to
the
Continent.
In
case
of
danger
,
the
control
station
in
the
Continent
will
recei
v
e
the
ur
gent
message
(SOS)
and
determine
e
xactly
the
coordinates
of
the
v
essels
at
that
time.
After
that,
the
y
will
cooperate
with
other
systems
to
rescue
quickly
and
sensibly
.
4.
CONCLUSION
In
this
paper
,
the
status
data
transmitting
system
suitable
for
v
essel
monitoring
has
been
presented.
The
proposed
frequenc
y
synthesizer
can
fle
xibly
change
the
frequenc
y
in
a
wide
range
(from
600
MHz
to
4.2
GHz)
and
the
output
po
wer
(from
-6
dBm
to
-3
dBm).
By
using
the
phase-lock
ed
loop,
the
synthesizer’
s
stability
o
v
er
A
Status
Data
T
r
ansmitting
System
...
(The
Anh
Nguyen
Dinh)
Evaluation Warning : The document was created with Spire.PDF for Python.
924
ISSN:
2088-8708
Figure
17.
Displaying
in
XY
axis
coordinates
temperature
and
tolerance
are
comparable
to
TCXO
that
is
about
+/-
3
ppm.
Moreo
v
er
,
phase
noise
performance
of
the
synthesizer
is
less
than
-90
dBc/Hz
at
1
KHz
and
-100
dBc/Hz
at
100
KHz.
The
impedance
bandwidth
of
the
horn
antenna
can
be
controlled
by
using
the
be
v
eling
technique.
The
status
data
module
packs
information
of
the
identification,
longitude,
latitude,
and
state
of
the
v
essel
into
data
frames.
FSK/MSK/GM
SK
schemes
were
use
d
to
modulate
the
data.
The
po
wer
amplifier
pro
vides
130
W
output
po
wer
at
S
band.
The
fundamental
characteristics
of
the
implemented
transmitter
ha
v
e
been
measured
and
v
ertified.
By
changing
the
parameters
automatically
,
the
status
data
transmitting
system
is
able
to
communicate
with
both
satellites
and
stations,
solving
the
communication
distance
issue.
A
CKNO
WLEDGEMENT
This
research
is
granted
by
V
ietnam
Space
Science
and
T
echnology
Program
through
the
national
projects
titled
”Research,
Design,
Inte
grate,
Launch
and
Operate
a
Nano
Satellite
-
VT
-CN.02/17-20”.
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[1]
Shwu-Jing
Chang,
”V
essel
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”
IEEE
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International
Carnahan
Conference
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Security
T
echnology
,
pp.
66-70,
October
2003.
[2]
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echnical
characteristic
for
an
automatic
identification
system
using
time
di
vision
multiple
access
in
the
VHF
maritime
mobile
band,
”
recommendation
ITU-R
M.1371-5
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[3]
”Satellite
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system
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”
Report
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[4]
”Satellite
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xactEarth
T
echnical
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aper
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April
2015.
[5]
Nguyen
Dinh
The
Anh,
Le
Xuan
Huy
,
V
u
T
uan
Anh
and
Bach
Gia
Duong,
”Research,
Design
and
F
abrication
of
a
Data
T
ranscei
v
er
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for
V
essel
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”
The
2016
International
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on
Adv
anced
T
echnologies
for
Communications
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TC16)
,
pp.
524-529,
October
2016.
[6]
The
Anh
Nguyen
Dinh,
Giang
Bach
Hoang,
T
uan
Anh
V
u
and
Duong
Bach
Gia,
”A
Solution
to
Enhance
the
Ef
ficienc
y
of
the
High
Po
wer
S
Band
LDMOS
Amplifier
for
Micro
w
a
v
e
Po
wer
T
ransmission
and
W
ireless
Communication,
”
The
V
ietnam-Japan
Micro
w
a
v
e
W
orkshop
(VJMW2015)
,
2015.
[7]
Giang
Bach
Hoang,
The
Anh
Nguyen
Dinh,
T
uan
Anh
V
u,
Duong
Bach
Gia
”Research,
Design
and
F
abrication
of
a
2.4
GHz
130
W
Po
wer
Amplifier
Module
for
Free-Space
Ener
gy-T
ransmission
Systems”,
The
5th
Interna-
tional
Conference
on
Inte
grated
Circuits,
design,
and
V
erification
(ICD
V
2014)
,
pp.
164-169,
No
v
ember
2014.
[8]
Zhu
Chunhua,
Y
ang
Jing,
W
ang
Shuili,
”K
e
y
Inde
x
Analysis
of
PLL
Frequenc
y
Synthesizer
with
High
Resolu-
tion”,
V
ideo
engineering
,
v
ol.
37,
pp.
98-100,
No
v
ember
2013.
[9]
Song
Qingping,
Qi
Jianzhong,
”ADF4350-Based
Frequenc
y
Modulation
T
ransmitter
Design,
”
IEEE
Conference
Publications
,
pp.
1-3,
No
v
ember
2014.
[10]
Akihiro
Kajiw
ara,
Masa
o
Nakag
a
w
a,
”A
Ne
w
PLL
Frequenc
y
Synthesizer
with
High
Switching
Speed,
”
IEEE
T
ransl.
J.
V
ehicular
T
echnology
,
v
ol.
41,
pp.
407-413,
No
v
ember
1992.
[11]
Muhammad
Kashif,
Zahid
Y
aqoob
Malik,
Mubashar
Y
asin,
Muhammad
Imran
Na
w
az,
”
K-Band
PLL
Based
Frequyenc
y
Synthesizer
,
Proceedings
of
6th
International
Bhurban
Conference
on
Applied
S
ciences
and
T
ech-
nology
,
v
ol.
2,
pp.
136-139,
2009.
[12]
Analog
De
vices,
”ADF4350
Datasheet,
2017.
[13]
STMicroelectronics,
”STM32F103xx
Datasheet,
2007.
[14]
Cao
hui,
Qu
Y
u,
”A
miniaturized
frequenc
y
synt
h
e
sizer
system
design
based
on
ADF4350,
”
The
2016
IEEE
IJECE
V
ol.
8,
No.
2,
April
2018:
917
–
925
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IJECE
ISSN:
2088-8708
925
International
Conference
on
Signal
Processing,
Communications
and
Computing
(ICSPCC)
,
5-8
August
2016.
[15]
Hui
Xu,
Liang
Peng,
”DDesign
of
Ultra-broadband
micro
w
a
v
e
sources
based
on
ADF4350,
”
The
2010
2nd
International
Conference
on
Adv
anced
Computer
Control
(ICA
CC)
,
27-29
March
2010.
[16]
Song
Qingping,
Qi
Jianzhong,
”ADF4350-based
Frequenc
y
Modulation
transmitter
design,
”
The
2014
Interna-
tional
Conference
on
Cyberspace
T
echnology
(CCT
2014)
,
8-10
No
v
ember
2014.
[17]
Lin
W
ang,
Y
uanw
ang
Y
ang,
Jiangyue
Cai
and
Gang
Liu,
”A
wide
frequenc
y
co
v
erage
synthesizer
with
high
performance
for
3MHz-5GHz
transcei
v
er
,
”
The
2013
International
Conference
on
Information
Science
and
T
ech-
nology
(ICIST)
,
23-25
March
2013.
BIOGRAPHIES
OF
A
UTHORS
The
Anh
Nguy
en
Dinh
recei
v
ed
the
B.S
De
gree
and
M.Sc
De
gree
in
Electronics
and
T
elecommu-
nications
T
echnology
from
Uni
v
ersity
of
Engineering
and
T
echnology
,
V
ietnam
National
Uni
v
ersity
in
2009
and
2011,
respecti
v
ely
.
From
2012
to
2015,
he
w
as
a
researcher
in
Com
munications
and
T
ele
vision
De
v
elopment.,
JSC.
Since
2016,
he
has
been
a
researcher
in
V
ietnam
National
Space
Center
,
V
ietnam
Academy
of
Science
and
T
echnology
.
No
w
,
he
is
a
Ph.D
student
in
VNU
Uni-
v
ersity
of
Engineering
and
T
echnology
.
His
researches
are
in
fie
lds
of
micro
w
a
v
e
engineering,
communications
in
satellites,
ground
station
and
radio
systems.
Huy
Le
Xuan
recei
v
ed
Ph.D.
De
gree
in
Mechanical
and
Aerospace
Engineering
from
T
ok
yo
Insti-
tute
of
T
echnology
in
2014.
He
has
been
w
orking
for
VNSC
since
2011
at
Space
Systems
Design
Department.
His
research
interests
are
small
Earth
observ
ation
satellites
de
v
elopment,
system
en-
gineering,
satellite
attitude
determination
and
control,
optimal
es
timation
of
dynamics
systems.
Currently
,
he
is
technical
and
process
monitoring
for
both
NanoDragon
(4kg)
and
MicroDragon
(50kg)
satellit
e
projects
in
VNSC.
He
is
also
the
head
of
Space
Systems
Design
Department
in
VNSC.
In
v
olv
ed
projects:
PicoDragon
-
1kg
satellite,
Tsubame
-
50kg
satellite
of
T
ok
yo
Institute
of
T
echnology
T
uan
Anh
V
u
recei
v
ed
the
B.S
De
gree
and
M.Sc
De
gree
in
Electronics
and
T
elecommunications
T
echnology
from
Uni
v
ersity
of
Engineering
and
T
echnology
,
V
ietnam
National
Uni
v
ersity
in
2006
and
2009,
respecti
v
ely
.
In
2013,
he
recei
v
ed
Ph.D
De
gree
in
the
field
of
analog/mix
ed-signal
RF
nano
electronics
from
Uni
v
ersity
of
Oslo,
Norw
ay
.
Since
2014,
he
has
been
a
lecturer
at
F
aculty
of
Electronics
and
T
elecommunications,
VNU
Uni
v
ersity
of
Engineering
and
T
echnology
.
Dr
.
T
uan
Anh
V
u
w
as
with
Department
of
Semiconductor
Electronics
and
Inte
gration
Science,
Hiroshima
Uni
v
ersity
as
a
postdoctoral
researcher
for
one
year
.
He
is
no
w
doing
postdoc
at
Department
of
Electrical
and
Computer
Engineering,
Uni
v
ersity
of
California,
Da
vis.
His
research
intere
sts
are
analog
RF
inte
grated
circuit
designs,
ener
gy
harv
esting,
micro
w
a
v
e
engineering,
etc.
Duong
Bach
Gia
w
as
born
in
Ha
Dong
Dist,
Ha
Noi
Pro
vince,
V
iet
Nam
in
1950.
He
recei
v
ed
the
B.S
de
gree
in
radio
ph
ysics
in
1972
and
the
Ph.D
de
gree
in
wireless
ph
ysics
from
Uni
v
ersity
of
HaNoi
in
1988.
From
1988
to
1990,
he
w
as
a
researcher
assisstant
in
Leningrad
Uni
v
ersity
,
Russia.
From
1991
to
2005,
he
w
as
a
researcher
in
academy
of
air
force.
He
has
been
a
lecturer
and
head
of
electronics
and
telecommunications
cent
er
,
Uni
v
ersity
of
Engineering
and
T
echnology
,
V
ietnam
National
Uni
v
ersity
since
2006.
He
w
as
promoted
to
Associate
Professor
in
2009
and
to
Professor
in
2016.
His
research
forcuses
on
RF
analog
sing
al
processing,
RF
chip
design,
radar
engineering
and
technology
,
automatic
control.
Email:
duongbg@vnu.edu.vn
A
Status
Data
T
r
ansmitting
System
...
(The
Anh
Nguyen
Dinh)
Evaluation Warning : The document was created with Spire.PDF for Python.