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NTT DOCOMO Inc. has successfully developed a trial large-scale-integration (LSI) chip that consumes less than 0.04 W of power yet supports multiple-input multiple-output (MIMO) signal detection and decoding for downlink transmissions at 100 Mbps, the speed required for the forthcoming mobile system known as Super 3G, or LTE, approved...

2008 was a tough year for ultra-wideband (UWB) technology, reports In-Stat. There are now four fewer UWB chip makers than there were in the middle of 2008, the high-tech market research firm says. Focus Semiconductor declared bankruptcy; WiQuest shut its doors; Intel stopped its program; Artimi and Staccato Communications...

For the fourth consecutive year, ABI Research puts a different twist on the traditional December activity of surveying the year just past and speculating about what the new one will bring, with a white paper titled “What’s Isn’t Going to Happen in 2009.” The paper is available for free...

The economic downturn will slow growth and innovation in many areas but will create attractive investment opportunities in the communications and media sectors in the New Year, according to M/C Venture Partners, which released its annual list of the Top-10 communications and media industry trends to watch in 2009....

Industry News AWR , a leader in high-frequency design software, expanded its relationship with Rohde & Schwarz , a leading test equipment manufacturer, to provide expanded sales channels for AWR products such as Microwave Office® in China, Taiwan, Singapore and Malaysia. The expanded sales distribution partnership will boost AWR’s...

This article proposes a novel amplifier linearization technique to achieve independent control of third- and fifth-order intermodulation products using amplitude modulation with even harmonic signals. A vector modulator modulates a fundamental signal with both second- and fourth-order harmonic components generated by harmonic generator circuits. It also generates predistortion third-...

InP-based heterojunction bipolar transistors (HBT) have shown excellent microwave and noise performance and are very attractive for millimeter-wave and optoelectronic applications, such as low noise amplifiers (LNA), mixers, oscillators and other RF sub-system components. HBTs are almost exclusively operated in a common emitter configuration (CE) in amplifier design. However,...

A Real-life Story In this month’s column I have chosen to bring up a real-life story received from one of our readers (name withheld). In summary, it tells the story of an RF engineer who strayed to programming fields and has a hard time coming back. The Story Dear...

In this article we offer a brief look into the past of two companies whose long history in developing microwave technology and defense systems eventually brought them together. From humble beginnings, Cobham plc and M/A-COM grew, achieved industry leadership status and weathered decades of economic change through their innovations...

RF performance and thermal reliability are the two important parameters when selecting an RF Tx/Rx switch at the front end of a high power linear base station, CPE, or femtocell. As always, the RF performance is very critical. Parameters such as insertion loss, isolation, P1dB, IP3, switching speed, bandwidth...