• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Microwave Magazine, IEEE >Low-Cost Microwave Power Generator for Scientific and Medical Use [Application Notes]
【24h】

Low-Cost Microwave Power Generator for Scientific and Medical Use [Application Notes]

机译：用于科学和医学用途的低成本微波发电机[应用笔记]

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Microwave generators are used in medical and scientific applications for heating or generating nonthermal effects. Such generators require fine output power and phase control to be able to control the focalization of the microwaves in the samples. They must also be able to generate continuous or pulsed microwave radiation. The spectral purity of the microwave output signal is usually not important as long as the generator will not produce large second- and third-order harmonics. Basically, all the energy in the microwave radiation spectrum contributes to the heating process. The microwaves are radiated into the sample through different configuration applicators using the industrial, scientific, and medical (ISM) frequency bands. A large range of power control is necessary if both thermal and nonthermal microwave effects are sought to be induced alternately during the treatment period. Such generators are rather expensive and difficult to find as spare parts. The idea of using second generation (2G) NOS components is based on the observation that stock suppliers have low-cost, large amounts of 2G components, used mainly in Global System for Mobile Communications (GSM) phones and related network equipment, while the silicon RF power transistors, available on the market today, have excessive prices. Could we use the huge GSM new old stock (NOS) components with good performance in other applications than they were designed for?
机译：微波发生器在医学和科学应用中用于加热或产生非热效应。这种发生器需要精细的输出功率和相位控制，以能够控制样品中微波的聚焦。它们还必须能够产生连续或脉冲微波辐射。微波输出信号的频谱纯度通常并不重要，只要发生器不会产生较大的二阶和三阶谐波即可。基本上，微波辐射光谱中的所有能量都有助于加热过程。微波通过使用工业，科学和医学（ISM）频段的不同配置施加器辐射到样品中。如果希望在治疗期间交替引起热和非热微波效应，则需要大范围的功率控制。这种发电机相当昂贵，并且很难找到其备用零件。使用第二代（2G）NOS组件的想法是基于以下观察结果：库存供应商具有低成本，大量的2G组件，这些组件主要用于全球移动通信系统（GSM）电话和相关的网络设备，而硅今天市场上出售的射频功率晶体管价格过高。我们是否可以将大型GSM新旧组件（NOS）组件用于其设计以外的其他用途，并且性能良好？

著录项

  • 来源
    《Microwave Magazine, IEEE》 |2013年第4期|124-130|共7页
  • 作者

    Surducan V.; Surducan E.;

  • 作者单位

    National Inst. for Isotopic and Molecular Tech., Cluj-Napoca, Romania;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号