Medical

MEDICAL APPLICATION NOTES

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  Microwave Office® Software Improves Heart Condition Treatment

  Meridian Medical Systems develops products that use microwave energy to generate heat, measure radiation and motion, and monitor and maintain the temperature of blood and other fluids. This application note discusses how AWR Microwave Office’s design software was recently used to develop an accurate feedback mechanism for cardiac arrhythmia.

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  Modeling The Specific Absorption Rate Distribution Of A Smartphone

  This application models the specific absorption rate (SAR) distribution in a human head, heart, and body exposed to an electromagnetic field emitted from a handheld cellular phone operating in GSM (900 MHz and 1,800 MHz) and GPS range in a partially closed environment. In the modeling, SAM Phantom IEEE model and a realistic human head and body are used to investigate both the local and average SAR of 1 g and 10 g tissue.

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  Medical Applications Guide

  This download contains information on Texas Instruments’ ability work in applications involving the consumer medical, medical imaging, medical instrumentation, connectivity solutions, and diagnostic, patient monitoring, and therapy market segments within the medical field.

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  Signal Switching for Medical Device Testing App Note

  Maintaining signal integrity is critical in medical device testing and characterization. The signal's shape, as well as its frequency, amplitude and other electrical parameters must be preserved for accurate measurement and evaluation.

MEDICAL CASE STUDIES AND WHITE PAPERS

• Combined 3D Electromagnetic And Spin Response Simulation Of MRI Systems

  This white paper addresses the benefits of using 3D electromagnetic software for simulation to accurately represent the behavior of magnetic fields used in MRIs.

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  RF/Microwave Instrumentation Amplifiers Benefit from Spatially Power Combined Parallel-MMIC Amplifier Technology

  RF/Microwave Instrumentation Amplifiers are ideal for applications involving EMC radiated susceptibility testing, the medical market, materials, chemicals, and many more. This white paper discusses how these amplifiers can benefit from spatially power combined parallel-MMIC amplifier technology.

• A Four-Element 'Clover' Transceiver Array For 3 Tesla Cardiac MRI

  The design of radio frequency (RF) coils is of paramount importance to the quality and safety of Magnetic Resonance Imaging (MRI). Being the signal generator and detector of MRI, RF coils are required to generate a uniform excitation in the target during transmission and high signal-to-noise ratio (SNR) during reception. In the meantime, RF coils must not cause subject overheating in in-vivo human studies. This requires that RF energy deposited inside the human body and coupled to receivers should be minimized. By Shumin Wang and Hai Lu

• A Multiphysics Approach To Magnetron And Microwave Oven Design

  The magnetrons used in microwave ovens operate on the same frequency band as Wi-Fi equipment, and the radiation they release can interfere with the operation of wireless networks. This paper presents a multiphysics simulation of a magnetron using CST STUDIO SUITE®, with the aim of testing the electrical, magnetic, thermal and mechanical characteristics of a low-interference magnetron design. The simulation results are then compared to measurements made experimentally, and the two sets of results are shown to be in good agreement.

MEDICAL PRODUCTS

LTE Tx/Rx Switches

Skyworks is pleased to unveil five LTE Tx/Rx switches for smartphones and tablets. The SKY13414-485LF, SKY13415-485LF, SKY13416-485LF, SKY13417-485LF and SKY13418-485LF main/diversity antenna switches cover SP4T through SP8T, and allow up to eight bands of WCDMA/LTE.

Solid State Broadband High Power RF Amplifiers

Ophir RF offers Solid State Broadband High Power RF Amplifiers for EMC, Communications, and Military applications. Links to datasheets can be found below, along with information on typical users of Ophir RF’s amplifiers, and the applications in which they’re used.

Antenna Analysis Software

FEKO software is a comprehensive EM simulation tool, based on state of the art computational electromagnetics techniques. The software enables engineers to solve a wide range of electromagnetic problems.

NuPower Xtender™ Bidirectional L & S Band Power Amplifier: 1.0 – 2.5 GHz, 10W, 6.9 in³

The NuPower Xtender power amplifier has been designed to improve the range and link robustness of communications systems operating in the L- and S- bands. It covers the 1-2.5 GHz frequency range and features bidirectional operation, 40 dB transmit gain, an optional 15 dB gain LNA, a compact size (3.00” x 2.00 “ x 1.15”), high efficiency GaN technology, and more.

Precision Potentiometers

These precision potentiometers are water resistant, RoHS compliant, and feature a wide temperature operating range. They’ve specifically been designed to withstand tough industrial applications, and are especially ideal for precision applications involving industrial control, valve and pump control, joysticks, lighting control, speed control, HVAC position sensing, marine and medical equipment, and more.

Pulsed RF Microwave Frequency Counter/Analyzer: CNT-90XL

This RF/Microwave frequency counter/analyzer can be used to measure, analyze, and calibrate microwave frequency, power, and pulsed RF time parameters like pulse width and PRI. This system features a graphical display and improved control over measurement.

Explore the Technical Applications of EM Simulation

Explore how CST simulation software tools can address design challenges across the electromagnetic spectrum with our insightful range of webinars. Using the tools in CST STUDIO SUITE®, the webinars explore various applications and workflows and demonstrate the benefits of using simulation software to design devices such as antennas, waveguides, optical devices, MRI coils, and more.

 

Medical RF & Microwave Semiconductors

Skyworks offers a large variety of RF and microwave semiconductor products for use in medical devices. Common applications include glucose monitoring, defibrillators, hearing aids, heart monitors/pacemakers, MRI scanners, patient monitors, and others.

MEDICAL NEWS

• Researchers Design First Battery-Powered Invisibility Cloaking Device

  Researchers at The University of Texas at Austin have proposed the first design of a cloaking device that uses an external source of energy to significantly broaden its bandwidth of operation.

• Graphene-Based Nano-Antennas May Enable Networks Of Tiny Machines

  Networks of nanometer-scale machines offer exciting potential applications in medicine, industry, environmental protection and defense, but until now there’s been one very small problem: the limited capability of nanoscale antennas fabricated from traditional metallic components.

• A New Paradigm For Nanoscale Resolution MRI

  A team from the University of Illinois at Urbana-Champaign and Northwestern University has devised a novel nuclear magnetic resonance imaging (MRI) technique that delivers a roughly 10­ nanometer spatial resolution. This represents a significant advance in MRI sensitivity — modern MRI techniques commonly used in medical imaging yield spatial resolutions on the millimeter length scale.