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As linear modulation and demodulation is adopted in communication systems for spectrum efficiency, the system performance is limited due to nonlinearity, particularly in the power amplifier. The nonlinearity of a system can be explained as AM-AM, AM-PM, intermodulation distortion (IMD) and adjacent channel leakage ratio (ACLR). Several linearizing techniques...

Published Tuesday, Febuary 19, 2008 | Last Update 3.04.08 Here are your replies to the Febuary Expert Advice column This month, Rafi Hershtig, K&L Microwave talks About the Band-Reject Filter (BRF), or Band-Stop, is the solution of choice in an increasing number of cases. Exhibiting low loss and good...

Skyworks Solutions Inc., a developer of high performance analog and mixed signal semiconductors enabling mobile connectivity, announced that it has expanded its position in (GPRS) front-end modules (FEMs) through strategic engagements with leading system on chip (SoC) providers. To date, Skyworks has shipped more than 750 million GPRS power...

TriQuint Semiconductor announced the release of its latest quad-band transmit module, the TQM6M5001, as a key member of its wideband code division multiple access (WCDMA) total RF front-end strategy. The module, in the same size footprint of its predecessor, provides full GSM/EDGE (enhanced data rates for GSM evolution) capability....

RF Micro Devices Inc. (RFMD), a designer and manufacturer of high-performance radio systems and solutions, announced the company has validated the interface between RFMD's DigRF3G-compliant RF hardware and the baseband processor IC of a top-tier cellular handset baseband manufacturer. This is one of the industry's first DigRF3G hardware validations...

Agilent Technologies Inc. announced the addition of powerful and easy-to-use WiMAX analysis software to its signaling analyzer platform. Using this software and platform, service providers and network equipment manufacturers will be able to accelerate the development and deployment of WiMAX networks. Mobile WiMAX is regarded as one of key...

Rohde & Schwarz has added channel coding and MIMO precoding for up to four transmit antennas to its signal generators for 3GPP LTE (uplink and downlink). Whether mobile equipment manufacturers are looking for a unique all-in-one solution for 2x2 MIMO signals and realtime fading or simply need standard-compliant RF...

Anite, an international IT company focusing on testing technology for the wireless industry, announced that it has been selected by all of the leading Mobile WiMAX™ chipset developers and vendors for protocol testing. Protocol testing is an essential stage in the certification of WiMAX products and ensures that products...

Planar Monolithics Industries (PMI) has mergered with Planar Electronics Technology (PET) and Planar Filter Co. (PFC). The synergy between these three Frederick, MD-based corporations enables the offering of upgraded hybrid MIC/MMIC RF and microwave components, subsystems and systems to their customers as well as enhancing their ability to support...

Jazz Semiconductor®, a developer of analog-intensive mixed-signal (AIMS) foundry solutions, announced the release of MOSVAR model libraries in its 0.13 and 0.18-micron AIMS technology platforms targeting wireless and other communication products. The new model improves simulation accuracy reducing product development time and is integrated as a standard component in...