Newsletter | April 26, 2022

04.26.22 -- More Power = "Better" Communications, But How?

Featured Article
Spotlight On Amplifiers & Oscillators
Understanding Iterative Direct DPD

Digital pre-distortion (DPD) is a common method to linearize the output signal of a power amplifier (PA) that is being operated in its non-linear operating range. This article describes an approach to generate a pre-distorted signal based on a hard-clipper. The resulting waveform pushes the output of the DUT as close to the hard-clipper as possible.

Out Of This World: Solid-State PAs Help Power Space Exploration

For more than 25 years, Qorvo has been working with its partners to enable planetary exploration and has “launched” more than 1 million components into space. Contributions include SSPAs, including one that helps power the oustanding performance of the Green Bank Telescope (GBT). 

Ultra-Low Noise Amplifiers

This white paper provides information on two of Skyworks’ ultra-low noise amplifiers: the SKY67150-396LF and the SKY671513-396LF.

Industry Insights
Krytar Applications Idea: Microwave Or RF Amplifier Test Setup

Krytar presents a microwave or RF amplifier test set-up application idea. 

Meeting Biasing Requirements Of Externally Biased RF/Microwave Amplifiers

Radio frequency (RF) and microwave amplifiers provide their best performance under specific bias conditions. The quiescent current established by the bias point affects critical performance metrics such as linearity and efficiency. While some amplifiers are self-biased, many devices require external biasing using multiple supplies that must be sequenced properly for safe operation.

Power Indication & Relative Accuracy In Amplifiers

The purpose and scope of this document is to explain amplifier power indication (metering) and typical variations associated with frequency sensitivity and bandwidth. Exodus amplifiers, with our display/controller, provide many monitoring and control functions. 

Most Popular News
Featured Multimedia
Video: Integrating A PLL With An OCXO

Looking back at IMS 201 — Param Nampoothiri of MtronPTI walks us through the solution of integrating a PLL with an OCXO to get rid of the jitter in your system measurements.

Bulletin Board
High-Frequency, Low Phase Noise And Low G-Sensitivity OCXO: XO9095

The XO9095 is an OCXO integrated with low noise multipliers, filters for superior spectral purity, and low noise discrete amplifiers to generate a high-frequency, low phase noise sinewave output from 200 MHz to 6 GHz. The XO9095 employs an in-house manufactured precision SC-cut crystal, which drives the tight stability, low g-sensitivity, and low phase noise performance of the OCXO.

Featured Products And Resources
RF Amplifiers

AR offers some of the most advanced and innovative RF solid state amplifiers available today, delivering 1 to 16,000 watts and beyond. These amplifiers cover the DC to 1,000 MHz frequency range. This brochure covers AR’s entire RF amplifier product line and includes information on specifications, features, and more.

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Solid-State High-Power RF And Microwave Amplifiers Catalog

New for 2021, Empower RF Systems offers their latest catalog with updates on available amplifier technology. The brochure provides a corporate overview and describes capabilities, features, and benefits of their three major product lines: modules, air cooled rack mount systems, and liquid cooled scalable racks.

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Empower RF Systems, Inc.
NuPower S100A01 S-Band Power Amplifier: NW-PA-LS-100-A01

The NuPower S100A01 S-Band Power Amplifier is a small, ultra-high-power solid-state power amplifier module for CW operation, delivering a minimum of 100 watts of RF power from 2,000 MHz to 2,500 MHz to boost signal power levels. Applications for this product include UAS, UGV, broadband RF telemetry, RF communication systems, and more.

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NuWaves Engineering
Rack-Mount Continuous Wave TWTAs For Electronic Warfare Simulation And RF Testing

dB Control introduces two rack-mount, continuous wave (CW) traveling wave tube amplifiers (TWTAs) designed for applications such as electronic warfare (EW) simulation, RFI susceptibility testing, RF components testing, and more. The dB-4345 is a S/C-band TWTA operating in the 2 – 6 GHz range at 325 watts CW. The dB-4311M is an I/J-band TWTA at 6 – 18 GHz at 300 watts CW.

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dB Control
S-Band Pulsed Klystron Amplifier: VKS-8262

CPI offers the VKS-8262 series of klystrons for use in particle accelerators for scientific, medical, and industrial applications. These klystrons provide up to 7.5 MW peak at 2.856 or 2.9985 GHz at various RF pulse lengths and duty.

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Communications & Power Industries
20 MHz - 18 GHz Preamplifier: PAM-0118P

The PAM-0118P is a preamplifier designed to operate in the 20 MHz to 18 GHz frequency range and increase system sensibility by at least 37 dB. This device has a rugged compact design for measuring applications in the EMC lab or out in the field for general RFI testing. Other features include a 3 dB noise figure, 6 dBm output power at 1 dB compression, and N-type female connectors. 

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A.H. Systems