Industry News

Military Spending and GaN Driving Power Semiconductor Markets

Although the spending on RF power semiconductors in wireless infrastructure markets has continued to stagnate, other markets—notably the military—are seeing increased activity. Also, according to a new study from ABI Research, gallium nitride—long seen as a promising new “material of choice” for RF power semiconductors—is finally starting to gain...
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Power Amp Market to Double with Multi-stream MIMO

Adoption of 802.11n MIMO with multiple transmit streams will help boost the market for Wi-Fi power amplifier modules to twice its 2008 size despite continued pricing pressure. “As prices for single-stream 802.11n (1x1) chips dropped to match 802.11g, OEMs have quickly begun to switch from 802.11g to 802.11n in...
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Top EMS/ODM Vendors Gain Stability

Following alarming revenue plunges in late 2008 and early 2009, the global electronics contract manufacturing business showed signs of stabilization in the second quarter, with the top players experiencing a collective return to growth, according to iSuppli Corp. Based on a review of second-quarter sales data, the Top-10 Electronics...
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Around the Circuit

Industry News TriQuint Semiconductor Inc. , an RF front-end product manufacturer and foundry services provider, announced its acquisition of TriAccess Technologies , a provider of Cable TV (CATV) and Fiber-to-the-Premise (FTTP) integrated circuits for the amplification of high quality multimedia content, effective immediately. Previously, TriQuint served as TriAccess’ foundry...
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Design of a Dual-band Wilkinson Power Divider with Bandwidth Enhancement

A novel Wilkinson power divider without additional lumped and distributed elements other than a single resistor for a dual-band operation is presented in this article. In this design, the measured bandwidth of the proposed structure can be enhanced for...
Power dividers are very important components in microwave and millimeter-wave circuits. In recent years, there has been increasing demand for dual-frequency equipment due to the development of multiband technologies. Various power dividers operating at two or more frequencies based on lumped and distributed elements have been reported, 1-5 but...
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Filters: Metamaterial-based Compact Multilayer Filter with Skew-symmetric Feeds

Split-ring resonator (SRR) metamaterials are introduced in the design of a multilayer filter. Considering the electric coupling to the magnetic resonance, careful examination of the SRR orientations to the external stimulation is presented through full...
Microwave filters are essential components in modern wireless communications systems. It is important to reduce their size and weight in order to integrate them with other components in a single chip system. 1 A main trend in filter design is a multilayer filter, which has a much better quality...
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