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Amplifiers

ADI Introduces Four High Speed Data Converter Products

May 26, 2011
Analog Devices Inc. (ADI) is introducing four high speed data converter products that support signal sampling rates necessary to accommodate multi-carrier radio platform requirements for today’s 3G and 4G cellular infrastructure communication standards, including CDMA2000, UMTS/LTE, TD-SCDMA and TD-LTE. Analog Devices’ AD6649 and AD6643 IF diversity receivers and AD9643...
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Ciao Wireless To Spotlight Ultra-low Noise Figure Amplifiers

May 25, 2011
Ciao Wireless (Booth 3609) will introduce its new line of ultra-low noise amplifiers at IMS 2011 in Baltimore. The amplifiers have noise figures as low as 0.30 dB typical between 1 to 2.9 GHz and can be delivered in one to two weeks after receipt of order. Ciao’s designs...
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Microwave Backhaul Equipment Market To Surpass $12 B by 2016

May 24, 2011
The microwave backhaul equipment market is expected to surpass $12 B by 2016, according to the second edition of Maravedis' "Wireless Backhaul Market from an All-IP Perspective" report. During 2010 the PtP microwave backhaul market reached $4.74 B, representing an 18.9 percent decrease year-over-year. During the next five years...
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Investors Back Nujira’s Vision With £10 million

May 23, 2011
Nujira has secured a further £10 million of funding for its growth plans. The investment round, led by a new investor, Climate Change Capital Private Equity (CPE) and supported by existing investors Amadeus, NES Partners, Environmental Technologies Fund (ETF) and the angel investors, will reinforce the company’s vision to...
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Integral Introduces 200 W Ku-band SSPA

May 18, 2011
Integral Systems Inc. announced the availability of its ultra-compact and efficient 200 W Ku-band Solid-state power amplifier (SSPA). The new 200 W SSPA, offered through Integral Systems’ SATCOM Solutions division, continues the company’s leadership in the SSPA market. Earlier this year, Integral Systems announced its 100 W SSPA, which...
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RFMD Introduces GaN Unmatched Power Transistor Family

May 17, 2011
RFMD introduces the development of its GaN unmatched power transistor (UPT) family comprised solely of gallium nitride (GaN) transistors. Using an advanced 0.5 μm GaN high electron mobility transistor (HEMT) semiconductor process, these high performance amplifiers show excellent peak drain efficiency and flat gain over a broad frequency range...
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AR Introduces Automated System For Conducting Radiated Susceptibility Testing

May 17, 2011
AR RF/Microwave Instrumentation has introduced its latest automated system for conducting radiated susceptibility testing. The AS18027 AR System has been specifically designed to perform automated testing for MIL-STD 461 requirements. The system will produce fields up to 50 V/m at 1 meter distance from 1 to 18 GHz. The...
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Avago Expands Family of World's Smallest RF Amplifiers

May 12, 2011

Fast Calculation of Transimpedance Gain and Equivalent Input Noise Current Density for High-speed Optical Preamplifier Design

Analytical expressions for the relationships between the transimpedance gain and S-parameters, equivalent input noise current density and noise figure for high-speed optical transimpedance amplifier design are proposed in this article. This technique i...
May 12, 2011
Optoelectronic integrated circuits (OEIC) have attracted the interest of many researchers because of their important role in the hardware for information technology. The optical receivers have key roles in high-speed optical fiber communications, in high-speed chip-to-chip interconnections in computers, efficient networking between computers and in other diverse areas such...
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