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Amplifiers

M/A-COM Announces New Family Of High Power, Broadband Amplifiers

April 11, 2006
M/A-COM announces a new family of high power broadband amplifiers. The four new amplifiers, MAAPGM0074-DIE, MAAPGM0076-DIE, MAAPGM0077-DIE and MAAPGM0078-DIE can be used in various applications including communications and military electronic systems.
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50 dB Hermetically Sealed DLVA

April 11, 2006

The Grid Amplifier: Enabling High Power Millimeter-wave Systems

December 1, 2003
There are a number of communications, radar and imaging applications spanning Ka-band through W-band (26 to 110 GHz) that require transmitter output powers in the range of a few watts to a few tens of watts. Vacuum-tube sources and amplifiers have long been available that can produce output power...
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MMIC LNAs for Wireless Infrastructure Applications

November 1, 2003
Wireless infrastructure designers must often contend with conflicting goals when developing new equipment for the base transceiver station (BTS) market. The components used in today's systems are frequently required to operate over multiple bands and under multiple modulation formats. The quest for higher performance, lower cost, component interchangeability and...
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A Diode Linearizer for Microwave Power Amplifiers

November 1, 2003
The performance of communication systems, in both space and ground segments, is degraded by the nonlinearity of the power amplifiers that are operated in saturation to obtain higher efficiency. Linearizing is the technique used to improve the performance of communication systems when power amplifiers are operated in saturation. The...
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Integrated Variable Gain Amplifiers

October 1, 2003
A line of variable gain amplifiers (VGA) has been introduced for use in transmitter and receiver automatic gain control (AGC) circuits, and as variable gain blocks following low noise amplifier stages in high dynamic range receiver front ends. The new amplifiers integrate high performance amplifiers and attenuators within a...
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A VSAT Packaged HPA for Ground Terminal and Digital Radio Applications

October 1, 2003
Two broadband satellite networks are in the final stages of development and plan a service launch for North America in early 2004. Systems like these are expected to provide wideband, high speed communications for Internet and multimedia applications across North America and Europe for years to come. High power...
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The Concept of Predistortion

The intention of this article is to provide a tool for the design of a predistorter, a component intended to correct unwanted nonlinear effects in power amplifiers. In order to come up with a design, a concept of predistortion is discussed. The conclus...
October 1, 2003
This article continues the trend of previous publications, 1,2 to simplify the prediction of RF performance of systems designed for wireless digital communications. The first shows the correlation between sidelobes and intermodulation (IM) products. Sidelobes are the result of the spectrum re-growth when a digitally modulated signal is applied...
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A 35 to 45 GHz Low Noise or Buffer Amplifier with Wide Dynamic Range

September 1, 2003
A versatile new three-stage buffer amplifier has been introduced that is ideal for use as a receiver front end low noise amplifier, but, as a result of its dual bias configurations, it can also be used as a driver amplifier or LO buffer with good linearity and higher gain....
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Active CATV Splitters with High Isolation and Linearity

August 1, 2003
Splitting an RF input signal within a VCR or television was never much of a design challenge for manufacturers when the signal was analog. That changed dramatically, however, when CATV systems made the transition from analog to digital to provide addressability, video on demand, Internet access and other services....
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