نتایج جستجو برای: doherty power amplifier

تعداد نتایج: 501236  

2004
Shailendhar Saraf Arun K. Sridharan Supriyo Sinha Karel Urbanek Robert L. Byer

We describe a Nd:YAG slab laser master oscillator power amplifier (MOPA) system that has been scaled to 104 W of output power at 1064 nm, single transverse mode. The amplifier system consists of rod amplifiers followed by edgeand end-pumped slab amplifiers. The MOPA output of 104 W was 89% fundamental TEM00 spatial mode with less than 3% depolarization. These results are a key milestone in the ...

2006
Paul Saad Daniel Rönnow

The RF power amplifier (PA) is one of the critical components in the 802.11 transceivers, and it is expected to provide a suitable output power at a very good gain with high efficiency and linearity. However, present-day telecommunication device technology is not well suited to the requirements of optical data communication. Digital CMOS is the most used technology in RF applications, nowadays;...

1996
ROHINI BALAKRISHNAN GERALD S. POLLACK

The courtship song of the cricket, Teleogryllus oceanicus plays an important role in inducing the female to mount the male, which is necessary for mating. The song consists of a short, amplitude-modulated chirp, followed by a long trill of constant intensity and high syllable rate. Using playback techniques, it was determined which physical parameters of courtship song are necessary and/or suff...

Journal: :CoRR 2016
Wei Cai Liang Huang WuJie Wen

The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This pap...

2008
K. Song Y. Fan X. Zhou

A broadband radial waveguide power amplifier has been designed and fabricated using a spatial power dividing/combining technique. A simple electromagnetic model of this power-dividing/combining structure has been developed. Analysis based on equivalent circuits gives the design formula for perfect power-dividing/ combining circuits. The measured small-signal gain of the eight-device power ampli...

2016
Sandeep kumar Charanjeet Singh

Performance of sense amplifier has considerable impact on the speed of caches used in microprocessors. The small difference in voltage level of bit lines of memory cell is amplified by sense amplifier. voltage mode sense amplifier reduces the power dissipation during read and increases the speed also. This paper describes voltage mode sense amplifier and current mode sense amplifier and compare...

2016
Wei Cai Liang Huang ShunQiang Wang

The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance and cost, and between performance and low power consumption design. This pap...

2013
Jonghoon Park Changhyun Lee Changkun Park

In this review article, a stage-convertible RF power amplifier designed with a 0.18-m RF CMOS process is described. A method to implement a low-power matching network is an essential technology for the stage-convertible power amplifier. Various low-power matching networks with distributed active transformers as an output power combiner are compared in terms of the amounts of undesired coupling...

2015
Mohammad Hassan Akbarpour Mohammad Hossein Taghavi

Radio Frequency Power Amplifier (RFPA) amplifies the communication signals to the required power level for transmission. It is the most power consuming stage in a transceiver chain; consequently, any improvement in terms of dissipated power and efficiency of the power amplifier affects the overall power budget of the transmitter. Also, efficient performance of the RF power amplifier over extend...

Journal: :IEEE Microwave and Wireless Components Letters 2010

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