Whitepapers

3G/4G Multimode Cellular Front End Challenges, Part 2: Architecture Discussion

Key Concepts Discussed: Multiple architecture options available to fill different design needs for 3G/4G cellular front ends. Mode-specific architectures optimized for performance. Converged multi-mode architectures optimized for smallest size, lowest cost of implementation, and flexible band scalable platforms.

Power Amplifier Savings with DC-DC Converters

STMicroelectronics

3G/4G Multimode Cellular Front End Challenges, Part 3: Impact on Power Amplifier Design

Key Concepts Discussed:
• Power amplifier background.
• Low Power Mode versus DC-DC converters: impact on battery current.
• Quadrature versus single-ended architectures.

GaAs in Space

TriQuint Semiconductor

Consider the Costs of Not Migrating Your Test System

Test system migration and modernization doesn’t have to be expensive and fraught with hassle. In fact, carefully planned migration can maximize test-system efficiency, performance and readiness while providing meaningful cost savings.

Designing RF, Mixed-Technology Printed Circuit Boards

Printed circuit boards with both analog and digital circuitry are nearly universal. Recently, integration of RF circuitry in addition to the mixed analog and digital circuits has become more common. Problems arise because the PCB design tools have been ignorant of RF shapes printed on the board and a great deal of manual work was required to achieve a functioning product. Now, Mentor has teamed with RF Design Tool suppliers, such as Agilent, to bring the first integrated RF-PCB system tool.

SISO to MIMO: Moving Communications from Single-Input

Mark Elo, Marketing Director of RF Products, Keithley Instruments

Optical Lithography Based Low Cost PHEMT Process

DC to 85GHz TWA and Ka-band 4.9W Power Amplifier Using an Optical Lithography Based Low Cost PHEMT Process