design of low noise amplifier using ads
Fundamentals of RF Circuit Design With Low Noise Oscillators
Ngày tải lên :
08/04/2013, 10:50
... 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 and the Smith Chart ... 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 ... Summary 91
2.8 Attenuators (Pads) 92
2.9 Questions 93
2.10 Bibliography 96
3 Small Signal Amplifier Design and Measurement 97
3.1 Introduction 97
3.2 Amplifier Design Using Admittance Parameters...
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DESIGN OF NETWORK SECURITY PROJECTS USING potx
Ngày tải lên :
28/03/2014, 22:20
... FUTURE WORK
This paper presents an overview of a prototype computer security lab and design
of network security projects using Honeypots. The design of lab exercises for a network
security lab ... is a network of systems designed for attackers to interact
with. The honeypots within the Honeynet can be any type of system, service, or
information.
Medium interaction honeypots offer attackers ... type of packet filters/firewalls are in use, and
dozens of other characteristics. Nmap runs on most types of computers, and both
console and graphical versions are available. Nmap is free software,...
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Báo cáo y học: "Monte Carlo Commissioning of Low Energy Electron Radiotherapy Beams using NXEGS Software"
Ngày tải lên :
03/11/2012, 10:05
... commissioning of low energy electron beams
of a medical linear accelerator for Monte Carlo dose calculation using
NXEGS software (NXEGS version 1.0.10.0, NX Medical Software, LLC).
A unique feature of ...
Half of these sets consist of data collected at all three SSDs; the remainder consist of data collected at
only SSD = 100 cm and 110 cm. The compositions of the first five sets, which we designate ... limits defined on seven
measures of error to assess the performance of the program, finding that, regardless of the composition
of commissioning sets, mean values of the seven confidence limits...
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Báo cáo khoa học: Template-assisted rational design of peptide inhibitors of furin using the lysine fragment of the mung bean trypsin inhibitor pptx
Ngày tải lên :
16/03/2014, 13:20
... ideal template for the
design of potent, specific and stable furin inhibitors.
Here we report the design and synthesis of various
peptide analogs derived from the Lys fragment of
MBTI and their functional ... Journal compilation ª 2006 FEBS 3913
Template-assisted rational design of peptide inhibitors
of furin using the lysine fragment of the mung bean
trypsin inhibitor
Hu Tao
1,2,
*, Zhen Zhang
2,
*, ... of enzyme was added to release 15 nmol of MCA
in the 1 min enzyme reaction. For determination of the
inhibitory activity, a fixed amount of enzyme was first incu-
bated with different amounts of...
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Báo cáo toán học: " RFTraffic: a study of passive traffic awareness using emitted RF noise from the vehicles" docx
Ngày tải lên :
20/06/2014, 20:20
... University
of Notre Dame, IN, 3–6 April 2006
28. K Muthukrishnan, M Lijding ,N Meratnia, P Havinga, Sensing motion using spectral and spatial analysis of
WLAN RSSI, in Proceedings of the 2nd ... monitoring techniques. Because of its novelty, the proposed technique has various
potential extensions, such as recognition of various classes of vehicles, development of a traffic surveillance
network ... Figure 1), the mean value of RF noises can be used as a classification feature to distinguish car
movement from the environment.
Then we investigate the FFT amplitude of the RF noises. Figure 2 shows...
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Báo cáo hóa học: "Research Article A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs" doc
Ngày tải lên :
21/06/2014, 19:20
... applies to low- delay FIR
filter designs [9].
In the past, many attempts to design FIR lowpass filters
with low group delay have been made [9–12]. In [13], a
procedure for the design of FIR Nyquist ... oversampling factor of O
= 4.
5.1. AFB Prototype Filter. First we start with the design of
a narrow-band FIR low- pass AFB prototype filter with low
group delay designed by using the algorithm ... the mean
value of the group delay is restricted to integer multiples of
the number of channels.
For the first design step we have introduced a novel
procedure for the design of low- delay AFB FIR...
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Báo cáo hóa học: " Research Article Removing the Influence of Shimmer in the Calculation of Harmonics-To-Noise Ratios Using Ensemble-Averages in Voice Signals" docx
Ngày tải lên :
21/06/2014, 20:20
... evaluation of the influence of jitter (as well
of other levels of noise and their combinations) in the
performance of the PDA and HNRSr would require extensive
tests and is out of the scope of this ... formula [20] using the procedure described in
[21].
A base level of noise was added to the signal, to avoid
values near to zero in the denominator of HNR
Yum
in (4).
The variance of the noise added ... spite of using estimated values for
the pulse amplitudes.
Both facts can be explained by the presence, in any pulse
of the signal, of the decaying tails of previous pulses. This
summation of tails...
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Báo cáo hóa học: " Research Article Design, Analysis, and Performance of a Noise Modulated Covert Communications System" ppt
Ngày tải lên :
21/06/2014, 23:20
... the bandwidth of the
bandpass filter is twice that of the low- pass filter following
the second down-conversion, since the low- pass filter is the
key component dominating the received noise spectrum
before ... and bandpass filtered noise term.
Let the power spectral density of the sum frequency
noise of n
V
(t)
H(t)bedenotedasS
n
V
H
( f ). The average
power of the sum frequency noise needs to be found ... f
c
+ B
L
) in the low-
SIR channel, the bit stream is ruined because of high-power
tone interference at the output of low- pass filter generated
by the sum frequency signal of the tone interference...
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Báo cáo hóa học: " Research Article Statistical Analysis of Multipath Fading Channels Using Generalizations of Shot Noise" pot
Ngày tải lên :
22/06/2014, 00:20
... Article
Statistical Analysis of M ultipath Fading Channels Using
Generalizations of Shot Noise
Charalambos D. Charalambous,
1
Seddik M. Djouadi,
2
and Christos Kourtellaris
1
1
Department of Electrical and ... T
s
.
(18)
Proof. Follow the derivation of Lemma 1.
Remark 2. Next we illustrate how the rate of Poisson process
affects both the Doppler power spectrum and the power
delay profile. Consider the results of ... expansion is of order λ
1/2
, the second term is of order 1,
the third term is of order 1/λ
1/2
, and the kth is term of order
λ/λ
k/2
= λ
−(k−2)/2
. Hence, for large λ, we have the following
approximation...
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SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures
Ngày tải lên :
06/09/2012, 15:56
...
1 - 2 Overview of the Program
1
Overview of the Program
SAP2000 is a stand-alone finite-element-based structural program for the
analysis and design of civil structures. It offers an intuitive, ... availability of a button is indicated
in the main menus by the existence of an icon to the left of the command.
The lower right corner shows the current unit selection. Figure 2 shows
the layout of ... Draw, Select, Assign, Analyze, Display and
Design. These listed menus contain the commands that will be needed
most often when using SAP2000, and many of the most frequently used
commands are...
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SAP2000 Integrated Finite Elements Analysis and Design of Structures
Ngày tải lên :
06/09/2012, 15:56
... Select Mode.
24. Click the roof beam at the top of the braced frame to select it. Also click the joint at the top
of the chevron brace (center of braced frame roof beam) to select it.
25. From ... their particular circumstances. Following is an outline of this tutorial (see the Table of
Contents for a more complete outline):
A. Introduction
B. Description of Building Model
C. Tutorial Part ... C-10 to enter the last roof beam.
The model now appears as shown in Figure C-11.
Figure C-11: Model After All Roof Level Beams Have Been Drawn
18. Select all of the roof level frame elements and...
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The design of mat foundations
Ngày tải lên :
16/10/2012, 10:43
... point of allowing for mat
foundations and shallow footings instead of
more traditional pile foundations.
Without the need for 60- to 80- foot piles, the
shallow foundations also allowed construction ... being designed for a small office building with a total live load of 250 kips
and dead load of 500 kips. Find: (a) the depth D
f
for a fully compensated foundation, (b) the
depth D
f
if a soft ... 0.25
eo = 0.9
density (sat) = 119 pcf
Example 4.
Design the steel lying in the East-West direction of the mat shown below with external
dimensions of 42 feet by 74 feet. The columns are all 15”by...
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Báo cáo y học: " Rationale for one stage exchange of infected hip replacement using uncemented implants and antibiotic impregnated bone graft"
Ngày tải lên :
26/10/2012, 09:53
... eradication of plank-
tonic residues but are not effective in eliminating mi-
cro-clusters disrupted from biofilms that may be the
cause of recurrence after an indefinite period of time.
Fragments of ...
populations are often missed by conventional culture.
The problem of diagnosis markedly increases taking
into account the issue of bacterial phenotypes inside
biofilms. Sonication of explanted ... penetration into biofilm covering infected prostheses and effect on
bacteria. J Infect Dis 1994;170(3):720-3.
39. Rose WE, Poppens PT. Impact of biofilm on the in vitro activity of vancomycin
alone...
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Báo cáo y học: "Functional genomics analysis of low concentration of ethanol in human hepatocellular carcinoma (HepG2) cells. Role of genes involved in transcriptional and translational processes"
Ngày tải lên :
31/10/2012, 15:28
... remains
unknown. Therefore, the aim of this study was to characterize the effect of low concentration of ethanol on gene
expression profiling in HepG2 cells using cDNA microarrays with especial ... exception of ITGB4 that has been
found up-regulated with high concentrations of
ethanol.
This study represents an important advance in
the characterization of the molecular mechanisms of
low concentration ... biotinylated cRNA using
GeneChip IVT Labeling Kit (Affymetrix, Santa Clara,
CA). After confirmation of the quality of labeled
cRNA using the Affymetrix Test 3 Array, cRNA was
converted to cDNA using...
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