Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 81 for “"LNA"”.
-
Design of a Highly Linear 24-GHz LNA
… and have higher output signal power. LNA is the first building of the receiver and is a very critical building block for the overall receiver performance. The total NF and sensitivity of the receiver mainly depends on the LNAs NF that mandates a very low NF LNA design. Depending on its …
-
Low Power Merged LNA and Mixer Design for Medical Implant Communication Services
… This thesis investigates low-power design of an LNA and a down-conversion mixer of a receiver for MICS applications. The key idea is to stack an LNA and a mixer, while the LNA operates in the normal super-threshold region and the mixer in the sub-threshold region. In addition, a gm-boosting …
-
LNA-clamp-PCR zum sensitiven Nachweis von Punktmutationen im Rahmen der Entwicklung eines Darmkrebsfrüherkennungstests
… vorliegenden Arbeit wurde dazu die Methode der LNA-clamp-PCR (locked nucleic acid) etabliert. Die Bewertung der erzielten Anreicherung erfolgte über das relative Detektionslimit. Zur Bestimmung des Detektionslimits wurde die Schmelzkurvenanalyse von Hybridisierungssonden eingesetzt; diese wurde …
-
Development of a temperature insensitive current controlled current source for LNA bias circuit applications
… bias current for a bipolar Low Noise Amplifier (LNA) in order to minimise gain variations with temperature across the industrial temperature range (-40·C to 8S·C). The thesis begins with an explanation of key parameters concerned with LNA design and a target specification is defined. In Chapter …
-
Radio frequency circuit design and packaging for silicon-germanium hetrojunction bipolar technology.
… the methodology of the low noise amplifier (LNA) design and discusses the trade-off between the noise and gain matching. The technique for achieving simultaneous noise and gain matching for the LNA is also presented. Chapter 3 presents an L-band cascaded feedback SiGe low noise amplifier …
-
Analysis and design of low-noise amplifiers in silicon-germanium hetrojunction bipolar technology for radar and communication systems
… Transistor (SiGe HBT) low-noise amplifiers (LNAs). The LNA design trade-off space is presented and methods for achieving an optimized design are discussed. In Chapter 1, we review the importance of LNAs and the benefits of SiGe HBT technology in high frequency amplifier design. Chapter 2 …
-
Introduction of low noise amplifier for ultra-wideband radar receiver
… work is to provide a novel low-noise Amplifier (LNA) design. Major contributions include: Analysis of parameters of an LNA design which represent the important characteristics of for an ultra-wideband short range radar system. Comparison of classic LNAs and documenting of techniques to design our …
-
The Effect Of Hot Carrier Stress On Low Noise Amplifier Radio Frequency Performance Under Weak And Strong Inversion
… degradation of a low noise amplifier (LNA) circuit due to hot carrier effect (HCE) in both the weak and strong inversion regions. Since the figures of merit for the RF circuit characterization are gain, noise figure, input, and output matching, the LNA RF performance drift is evaluated …
-
Design of a Low Noise Amplifier for Wireless Sensor Networks
… radio receiver, the Low Noise Amplifier (LNA) is the first circuit, and its noise performance dominates the entire receiver. Depending upon the system in which they are used, LNAs can be designed according to various topologies and structures. The LNA needs to have matched input impedance, …
-
Design and Analysis of An Active Integrated Antenna
… patch antenna and a low noise amplifier (LNA), which are integrated together with a matching circuit and printed on an FR4 PCB circuit board. The system is designed, analyzed, and optimized by targeting to satisfy the design specifications for both the microstrip antenna and the LNA in …
-
A High Temperature Wideband Low Noise Amplifier
… a high temperature wideband low noise amplifier (LNA) with zero temperature coefficient maximum available gain (ZTCMAG) biasing for a downhole communication system. The proposed LNA is designed and prototyped using 0.25μm GaN on SiC RF transistor technology, which is chosen due to the high …
-
Inference for auto-regulatory genetic networks using diffusion process approximations
… known as the Linear Noise approximation (LNA). We prove that LNA converges to a linear SDE, as the size of the biological system increases. Since the LNA is a linear SDE, it has a known transition density with parameters given as the solutions of a system of Ordinary Differential Equations …
-
Silicon-Based PALNA Transmit/Receive Circuits for Integrated Millimeter Wave Phased Arrays
… power amplifier/low-noise amplifier (PALNA) matching networks, which present optimal matching impedances to both the power amplifier (PA) and the low noise amplifier (LNA) while maximizing power transfer efficiency and minimizing dissipative losses in each (transmit or receive) mode of …
-
Drifting -Dipole Noise Model of Nanometer MOSFETs for Radio Frequency Integrated Circuit Design
… two high-performance low-noise amplifiers (LNA) have been demonstrated. The 3.1--10.6 GHz Ultra Wideband LNA shows very low noise figures NF of 3.5 to 4.3 dB as well as superior input-referred third-order interception points IIP 3 of 3.5 to 5.2 dBm across the design bandwidth. The other …
-
A reconfigurable low noise amplifier for a multi-standard receiver
… the aim is to design and implement a new LNA for a multi-standard mobile receiver based on reconfigurability concept. This research was carried out in two major parts. The first part is to design and implement wide band multi-standard multiband LNAs for two bands of interest (lower …
-
(A). Regulation of B-/Z-DNA transition in modified oligonucleotides; (B). Synthesis of cationic BODIPY analogues for antimicrobial and anticancer applications
A. In this work, LNA-dG was incorporated into d(CG)6 sequence in a site-specific manner through the phosphoramidite chemistry-based solid phase synthesis to investigate the impact of this modification on the B→Z-DNA transition. Circular dichroism study showed that the incorporation of a single …
-
A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers
… dissertation discusses how the receiver and the LNA contained within the receiver are the major contributors to the sensitivity. Furthermore, a method for testing and determining the equivalent noise temperature of a cryogenic LNA operating at a physical temperature of 20 K is selected and …
-
SiGe receiver front ends and flip-chip integrated wideband antennas for millimeter-wave passive imaging
… a fully differential integrated antenna, LNA, and a double-balanced mixer. A separate 77-GHz front end also features an on-chip 72-GHz cross-coupled VCO. The 77-GHz front end receiver achieves 46 dB max conversion gain, 6.5-10 dB noise figure (NF), output-referred 1dB compression point of …
-
Tussen mentors en minnaars: ʼn Voorstel vir ʼn nuwe leesmodel vir die lees van werke deur skrywers soos Peter Blum en lna Rousseau, waar ʼn persoonlike verhouding tussen die skrywers bestaan het
This study investigates the problematic nature of personal relationships between certain writers and seeks to understand the nature of their relationship and the resulting influence on their work. The question of intellectual property rights is also raised - when two writers live together and …
-
IL-4/IL-13-inducible lincRNA-MIR99AHG regulates macrophage polarization and promotes intracellular survival of Mycobacterium tuberculosis
… experiments. Knockdown of lincRNA-MIR99AHG with LNA-GapmeRs significantly reduced intracellular Mtb growth in mouse and human macrophages and reduced proinflammatory cytokine production. In addition, in vivo treatment with MIR99AHG LNA-GapmeRs reduced the mycobacterial burden in the lung and …
Page 1 of 5