An automated and optimal design of CMOS low noise amplifier (LNA) via geometric programming has been presented. All the LNA design specifications are formulated as equality and inequality constrains and the design goal is formulated as an objective function. Some approximations and estimations on the design parameters are made in order to satisfy the formal requirement of the geometric programm...

In this paper, a low noise amplifier (LNA) in a 0.35 μm SiGe BiCMOS technology for WCDMA applications is presented. The designed LNA exhibits a noise figure of 1.65 dB and a power gain of 20 dB. Besides, two different base bias circuits are integrated in the LNA. One is a conventional resistor feed circuit, and the other is an active feed circuit. By using the active biasing technique for the b...

There are two main approaches to realize a receiver front-end. However, they have drawbacks when fully-integrated on a single chip. One direction to realize this front-end is to use a transformer that can convert the single RF output of the LNA to the differential input of mixer [4]. Another way to do this is to use a narrow-band two stage tuned LNA [5] that can provide a differential output. H...

Low Noise Amplifiers (LNAs) amplify weak signals received by the antenna in communication systems. Every wireless system module typically consists of one or several LNAs. Applications include GPS receivers, wireless data systems, satellite communication, cellular handsets, radio systems, etc. The low noise in the receive chain is reduced by the gain of the LNA and therefore its function is prim...

This paper presents the design and analysis of a dual-band low noise amplifier (LNA) at 2.4 GHz and 5.75 GHz for IEEE 802.11 a/b/g applications. This LNA proposed current-reused topology and presented new Hi-Pass and Lo-Pass matching technique network at the two stage common-source transistor. The LNA used GaAs HEMT transistor to improve the gain and noise figure (NF) matched concurrently at th...

Abstract We simulate the failure recovery process and study phase transition from high network activity (HNA) state to low (LNA) of coupled consisting a regular (RN) an Erdos-Rényi (ERN). Two mechanisms are considered, internal external recovery, in process. find that evolution is crucially dependent on coupling strength c between two subnetworks possibility r since RN sensitive recovery. A wea...

Use of antisense oligonucleotides is a versatile strategy for achieving control of gene expression. Unfortunately, the interpretation of antisense-induced phenotypes is sometimes difficult, and chemical modifications that improve the potency and specificity of antisense action would be useful. The introduction of locked nucleic acid (LNA) bases into oligonucleotides confers exceptional improvem...

LNA with Current Reuse and Zero-Pole Cancellation Chunbao Ding, Wanrong Zhang, Dongyue Jin, Hongyun Xie, Pei Shen, Liang Chen, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China Abstract—A low power cascode SiGe BiCMOS low noise amplifier (LNA) with current reuse and zero-pole cancellation is presented for ultra-wideband (UWB) appli...

A series of antisense oligonucleotides (ASOs) containing either 2'-O-methoxyethylribose (MOE) or locked nucleic acid (LNA) modifications were designed to investigate whether LNA antisense oligonucleotides (ASOs) have the potential to improve upon MOE based ASO therapeutics. Some, but not all, LNA containing oligonucleotides increased potency for reducing target mRNA in mouse liver up to 5-fold ...