نتایج جستجو برای: microwave amplifier

تعداد نتایج: 70913  

Journal: :journal of computer and robotics 0
mahmoud mohammad-taheri faculty of electrical, computer and it engineering, qazvin branch, islamic azad university, qazvin, iran

a complete procedure for the design of w-band low noise amplifier in mmic technology is presented. the design is based on a simultaneously power and noise matched technique. for implementing the method, scalable bilateral transistor model parameters should be first extracted. the model is also used for transmission line utilized in the amplifier circuit. in the presented method, input/output ma...

Journal: :Engineering Letters 2007
M. F. Ain S. I. S. Hassan J. S. Mandeep K. Igarashi K. Tanaka M. Iida

Abstarct Amplification is one of the most basic and prevalent RF/Microwave circuit functions. This paper describes the design of an 11 GHz PHEMT ATF-36077 microwave amplifier. The amplifier is manually designed using conventional technique, Smith chart was used to do a matching of the input and output of the amplifier. A completed design of the amplifier was optimised using Hewlett-Packard Adva...

2010
Syuhaimi Kassim Fareq Malek

This paper provides an alternative and highly accurate method in predicting Small Signal Performance of Microwave Amplifier. An Electromagnetic (EM) simulator that based on Finite Element Method (FEM) was used in combination with the conventional SPICE-based microwave circuit simulator in order to demonstrate the superiority in performance outcome such as Rollet Stability Factor (K), Return Los...

In this paper, we have presented an X band high power amplifier based on MMIC (Monolithic Microwave Integrated Circuit) technology for satellite remote sensing systems. We have used GaN HEMT process with 500 nm gate length technology with VD= 40 V and VG= -2 V in class E structure. The proposed two-stage power amplifier provides 25 dB power gain with maximum output power of 49.3 dBm at 10 GHz. ...

Journal: :IEICE Transactions 2005
Kiyoshi Aikawa Kazuhiko Honjo

0 1 5 Frequency [GHz] 6 2 3 4 Abstract The validity of lumped element microwave class-F amplifier circuit design has been demonstrated experimentally. By means of the proposed class-F amplifier design method, more than 4th-order higher harmonic frequencies can be taken into account in class-F microwave amplifier design using only lumped element components. In this approach, miniaturization of c...

Journal: :Science 2015
C Macklin K O'Brien D Hover M E Schwartz V Bolkhovsky X Zhang W D Oliver I Siddiqi

Detecting single-photon level signals—carriers of both classical and quantum information—is particularly challenging for low-energy microwave frequency excitations. Here we introduce a superconducting amplifier based on a Josephson junction transmission line. Unlike current standing-wave parametric amplifiers, this traveling wave architecture robustly achieves high gain over a bandwidth of seve...

Journal: :JCP 2011
Sadik Ulker

This short paper presents the concept of particle swarm optimization technique applied for the design of broadband microwave amplifiers. The method that is developed is based on Particle Swarm Optimization (PSO) technique applied to a compensated matching network on a single stage transistor amplifier to get the best optimized result in the design. To prove the concept four different operating ...

2009
Hui Xu Hongzhuan Feng

Equivalent gain amplification and broadband networks matching of weak microwave signal are difficult in Ultra-wideband microwave receiver system. A highly integrated amplifier IC ADL5541 from ADI is adopted as the core unit in this paper, coordinate with an external matching network. The design can realize an Ultrawideband microwave amplifier with 15dB gain which works in the 500~4000MHz with +...

Journal: :EPJ Web of Conferences 2017

2013
S. Gribaldo R. Boudot G. Cibiel V. Giordano O. Llopis Edouard Belin

The nonlinear modelling of different microwave SiGe bipolar transistors has been performed. Using these models, the phase noise of an amplifier is computed, taking into account two different types of noise, the microwave additive noise floor and the up-converted 1/f noise. The simulation technique combines different approaches available in a commercial CAD software. Theoretical results are then...

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