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Industry News

An Ultralinear Amplifier for PCS Applications

A solid-state PCS amplifier that uses a predistortion approach, which offers a lower part count, smaller size and higher reliability than typical feedforward designs
An Ultralinear Amplifier for PCS Applications Stealth Microwave, a division of SSB Technologies Inc. Trenton, NJ As PCSs are being deployed, many service providers are discovering that conventional base stations do not always provide satisfactory service over the entire cell area. This deficiency typically is caused by two factors:...
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Self-aligning Coaxial PCB Connectors

Patented RF connectors with slide-in mating and a floating front end that moves during the mating process
Self-aligning Coaxial PCB Connectors Applied Engineering Products (AEP) New Haven, CT One of the more common problems faced by designers of RF and microwave equipment who incorporate multiple PCBs is connecting the boards directly together so that the RF signals are transmitted properly between PCBs. This problem occurs because...
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SSPA Linearization

A comparison of common solid-state power amplifier (SSPA) linearization methods, which offer significant benefit when used with both bopolar and Si/GaAs FET power amplifiers
Technical Feature SSPA Linearization Allen Katz Please click here to view the pdf file of the Technical Feature...
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A Wideband VCO for Set-top Applications

A modeling technique for handling hyperabrupt varactors based on a high performance SMV1265-001 varactor and its application to wideband VCO design
Technical Feature A Wideband VCO for Set-top Applications Peter Shveshkeyev Please click here to view the pdf file of the Technical Feature...
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GSM Base Station Power Amplifier Module Linearity

An overview of GSM base station power amplifier module linearity as well as information on specifying the module's linearity and measuring linearity parameters
Technical Feature GSM Base Station Power Amplifier Module Linearity Julie Duclercq Please click here to view the pdf file of the Technical Feature...
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Miniaturized Low Cost 30 GHz Monolithic Balanced BPSK and Vector Modulators: Part II

The physical realiztion of a newly designed compact microstrip coupler and the design and performance of a MMIC BPSK and vector modulator that utilizes the coupler
Miniaturized Low Cost 30 GHz Monolithic Balanced BPSK and Vector Modulators: Part II Part one of this two-article series analyzed single-stage and balanced topologies in detail. It was illustrated that a common technique for realizing direct biphase-shift keying (BPSK) microwave modulators is to employ reflection-type topology with cold pseudomorphic...
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Design and Implementation of an L-band and PLL Frequency Synthesizer

The design and fabrication of an L-band phase locked loop (PLL) circuit for mobile communication systems
Technical Feature Design and Implementation of an L-band PLL Frequency Synthesizer Jwo-Shiun Sun, Kwong-Kau Tiong and Jiann-Hwang Liu Please click here to view the pdf file of the Technical Feature...
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COMPONENTS

COMPONENTS Ultra-broadband Eight-way Power Divider The model ADC-PD-0218 ultra-broadband power divider covers the 2 to 18 GHz frequency range and features good phase and amplitude balance across all eight output ports. Standard units operate over the full -54° to 85°C temperature range with good port-to-port tracking of +/-0.7 dB...
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ANTENNAS

ANTENNAS 13 - 38 GHz Low Profile Antennas The ValuLine® series low profile antennas has been expanded to include antennas operating at 13 to 38 GHz for use in cellular, PCS and Private User Networks. The units can also be customized for direct integration with OEM radio systems. The...
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AMPLIFIERS

  AMPLIFIERS High Power Amplifiers These high power amplifiers are designed specifically for communications applications at 24, 18 and 38 GHz. The MMIC-based units are available in production quantities and are field proven. Specifications include frequency ranges of 24.5 to 26.5 GHz, 27.5 to 28.5 GHz, 28.5 to 29.5...
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