Industry News

A Reconfigurable Microstrip Antenna with Frequency and Polarization Diversities

In this article, a novel microstrip patch antenna is presented, with both frequency and polarization reconfigurabilities. By controlling the states of the switches loading on the patch, the antenna can operate in two distinct frequency bands (the frequ...
The ever increasing development of wireless communication systems has led to a great demand for mobile devices that can operate using different standards such as GSM, GPS, DCS, UMTS and wireless local-area network (WLAN). Moreover, for the standards working under a complicated environment such as WLAN, the polarization diversity...
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Development Report of Power FETs for Solid-state Power Amplifiers from GaAs to GaN Devices

Major advances in microwave device development in recent years have enabled a transition to solid-state power amplifiers (SSPA) for wireless communications and radar systems in microwave to millimeter-wave bands. In particular, SSPAs are rapidly replacing electronic tube amplifiers, such as magnetron and traveling-wave tube-based amplifiers (TWTA), for base stations...
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Frequency Generation and Synthesis: Cost-effective and Power-efficient Solutions

This article presents the theoretical analysis and experimental verification of a frequency generation voltage-controlled oscillator (VCO) circuit that overcomes past attempts to combine a miniaturized (0.3" X 0.3") wideband VCO and a phase-locked loop...
Compact frequency synthesizers fill many needs in modern communications systems. To achieve full-sized performance in miniature packages, this research work describes a line of extremely compact frequency synthesizers that leverage a novel, patented voltage-controlled oscillator technology for the stability and low noise needed for emerging wideband, high-data-rate wireless communications...
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Around the Circuit

Industry News Cobham announced that it has sold M/A-COM Technology Solutions (MTS) to John Ocampo for $30 M in cash, $30 M in senior loan notes secured on the MTS assets and $30 M dependent on future revenue in the period 2010 to 2012. The loan notes carry a...
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Tight Capital Complicates Terrestrial TV Set Top Market

The global credit crunch could endanger many large digital terrestrial TV deployment projects, which require large amounts of financed capital, reports In-Stat. This could cause delays in DTT conversion programs worldwide, with consumers purchasing fewer set top boxes (STB) as a result. “Another scenario, however, is more upbeat for...
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Femtocells to Dominate Market for Indoor Cell Coverage

While femtocells were virtually non-existent in 2006, and deployed by one operator in 2007, they will make up 61 percent of small cellular base station revenue by 2013, reports In-Stat. Microcells, picocells and femtocells provide indoor cell phone coverage in a cost-effective manner. “As mobile operators migrate from larger...
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GTEL-Mobile Selects NEC Microwave System for Vietnam

Vietnam’s GTEL-Mobile has contracted NEC Corp. to deploy a mobile backhaul solution based on NEC’s ultra compact PASOLINK microwave communications system. GTEL is the latest mobile operator to enter the Vietnamese market and its mobile services are expected to begin later this year. PASOLINK will be introduced in Ho...
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UK KTPS Get Financial Boost

The Technology Strategy Board, the organisation that has been established to drive the development and exploitation of technology and innovation in the UK, has made a commitment to reduce the cost of its Knowledge Transfer Partnerships (KTP) programme to Small and Medium sized companies (SME). The move has the...
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