design of low noise transimpedance amplifier for intravascular ultrasound
Fundamentals of RF Circuit Design With Low Noise Oscillators
Ngày tải lên :
08/04/2013, 10:50
... and Insertion Loss of the Matching Network 111
3.5 Dual Gate MOSFET Amplifiers 115
3.6 Noise 117
3.6.1 Noise Temperature 125
3.6.2 Noise Measurement System 126
3.7 Amplifier Design Using
S
Parameters ... power amplifier design and includes
Load Pull measurement and design techniques and a more analytic design example
of a broadband, efficient amplifier operating from 130 to 180 MHz. The design
example ... common emitter amplifier
The input impedance is therefore:
12 Fundamentals of RF Circuit Design
()
efeT
fe
rhf
h
C
12
+
=
π
T
m
eT
f
g
rf
ππ
22
1
=≈
(1.25)
Many of the parameters of a modern device...
- 308
- 698
- 6
Báo cáo hóa học: " Design of Uniformly Most Powerful Alphabets for HDF 2-Way Relaying Employing Non-Linear Frequency Modulations" ppt
Ngày tải lên :
20/06/2014, 22:20
... differences
corresponding to the rows of XC matrix, see also the
proof of Lemma 6. Therefore, if the squared norm of hier-
archical signal differences with indices not being in the
same row of XC matrix are always ... the squared n orm of the signal
difference of binary alphabet i s always 2 for any p.The
reason is simply given by zero real part of r for any p,
as has been mentioned in the proof above, then ||s
0
(t)-
s
1
(t)||
2
=2(1-ℜ{r}) ... according to Remark 11, they form a performance
benchmark.
A. UMP-FSK design
1) FSK definition and basic properties: We assume the
following unit energy FSK s ignals of one symbol dura-
tion
s
c
(
t
)
=e
j2c
t
T
s
,
(27)
where...
- 18
- 346
- 0
Báo cáo hóa học: "Research Article Design of an Omnidirectional Multibeam Transmitter for High-Speed Indoor Wireless Communications" doc
Ngày tải lên :
21/06/2014, 17:20
... responses of configuration E for light undergo-
ing up to five reflections.
power uniformity of the transmitter has yet to be optimized.
For high performance wireless diffuse links with uniform
power ... for
each of the higher order impulse responses; however, for
configuration D the contributions of low- order impulse
responses dominate (more than 50% for k<2) but for
configuration E that of higher-order ... shown. The method presented here can
also be applied for the design and simulation of fiber launch
system to achieve high bit rate and low noise performance in
fiber optical communications.
2. Channel...
- 11
- 380
- 0
A low power high dynamic range broadband variable gain amplifier for an ultra wideband receiver
Ngày tải lên :
06/11/2012, 10:26
... CHEN
Submitted to the Office of Graduate Studies of
Texas A&M University
in partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE
May 2006 ... shown in Table 1.1.
Style and format follow IEEE Journal of Solid-State Circuits.
19
effective transconductance is the summation of the transconductances of NMOS and
PMOS transconductors. ... is used before the ADC,
bandwidth and linearity requirements should be comparable with those of the ADC;
otherwise, the performance of the ADC will be degraded. The specifications of this
VGA...
- 121
- 386
- 0
LOW FREQUENCY IGBT CONVERTER FOR CONTROL EXCITING FORCE OF ELECTROMAGNETIC VIBRATORY CONVEYORS
Ngày tải lên :
03/01/2014, 19:15
...
displacement value of i.e. vibratory width
value of in which the amplitude of EVA
current was .In the moment of time is
setting sudden increase of reference value of current
half-wave forms around ... Republic of Serbia
, zeljko@robot.imp.bg.ac.rs
Abstract: The resonant electromagnetic vibratory
conveying drives (EVCD) are often used to control of the
gravimetric flow and dosing of particulate ...
significantly lower. In addition, to adjusting amplitude
and time duration of the exciting force provide its
frequency control. In this way, operation of EVCD
becomes independent of network supply...
- 5
- 322
- 0
Tài liệu Báo cáo khoa học: Simplified yet highly accurate enzyme kinetics for cases of low substrate concentrations ppt
Ngày tải lên :
18/02/2014, 06:20
... demonstrate the validity of this last statement, we
compared the performance of a simple integrator for the
ZDP
1
-reduced PTS system against that of a state -of- the-
art integrator for the full PTS system. ... enzymes and binding sites are often of the same
order of magnitude. In all of these cases, the accuracy
of Michaelis–Menten kinetics is unsatisfactory as a
result of small timescale separation. ... on the
complexity of the system) at any time instant t in a col-
umn vector z(t). The time evolution of the components
of z is dictated by a set of state equations in the form
of ODEs:
_
ztịẳf...
- 16
- 564
- 0
Tài liệu Design of Feedback Control Systems for Stable Plants with Saturating Actuators ppt
Ngày tải lên :
18/02/2014, 10:20
...
it
was described
above,
then
x(t)e
BA,C
for
all
t
and
for
all
u(t).
Proof:
The
proof
of
this
Lemma
follows
from
the
construction
of
X(t).
////
Page
17
r
…
Logic
' ...
part
of
this
research,
an
initial
investigation
was
made
on the
effects
on
performance
of
the
reset
windups
for
MIMO
systems
[11]
showing
potential
for
improving
the
performance ...
system
There
are
well
developed
methods
for
defining
performance
criteria
and
for
designing
linear
closed
loop
systems
which
meet
the
performance
requirements.
It
would
then...
- 39
- 595
- 0
Tài liệu Novel Design of an Integrated Pulp Mill Biorefinery for the Production of Biofuels for Transportation pot
Ngày tải lên :
26/02/2014, 14:20
... analysis of DME and FTD designs. 68
Figure 27: Mass and energy flow of DME design and FTD design. 69
34
Table 6: Contaminant specification for cobalt FT synthesis, and cleaning effectiveness of ... bed for black liquor steam
reforming at low temperatures. Steam injected at the bottom of the vessel fluidizes the bed
particles and also provides a source of water needed for steam reforming[34]. ... with carbon atoms to form Na
2
S, the primary
active chemical in sodium carbonate formation. The following formula describes the main
reaction that drives the formation of Na
2
CO
3
:
SHCONaOHCOSNa
232222
2
+
→
+
+
...
- 105
- 518
- 0
Báo cáo khoa học: Design of expression vectors for RNA interference based on miRNAs and RNA splicing potx
Ngày tải lên :
07/03/2014, 11:20
... vectors generate
efficient knockdown of target proteins
To examine the efficiency of generation of RNAi for
pSM155 and pSM30, we examined the knockdown of
expression of firefly Luciferase (Luc). HeLa ... Banno for the PLD2
antibody, Dr Greg Hannon for the pSM2 vector, Dr
Roger Y. Tsien for the pRSET-B-mCherry, and Dr
Jen-Chih Hsieh for the pRK-human IgG construct.
We also thank Dr Jian Cao for allowing ... The
selection of target sequences and design of artificial miRNA
stem-loops were based on the algorithms accessible at
http://www.invitrogen.com/rnai (for miR155 system), http://
codex.cshl.edu (for miR30...
- 7
- 514
- 0
Báo cáo khoa học: Investigations into the ability of an oblique a-helical template to provide the basis for design of an antimicrobial anionic amphiphilic peptide pot
Ngày tải lên :
07/03/2014, 12:20
... aliquot of AP1 in chloroform
(1 mm) was spread on to a buffer subphase and allowed to
equilibrate for 1 h. The resulting peptide monolayer was
compressed using the moveable barriers of the trough ... Monolayers were formed by spread-
ing on to a buffer subphase, chloroform solutions of
Ole
2
PtdGro, Ole
2
PtdEtn and cardiolipin in molar propor-
tions of 1 : 13.67 : 2 [53]. The solvent was allowed to ... the wedge hypo-
thesis of Tytler et al. [48], it may be that insertion of
the inverted wedge shape formed by the AP1 a-helix
into membranes of E. coli leads to the formation of
nonbilayer structures...
- 12
- 688
- 0