Textile substrate integrated waveguide technology for the next-generation wearable microwave systems

Textile substrate integrated waveguide technology for the next-generation wearable microwave systems

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Ever since the transistor replaced the vacuum tube by the end of the 1950s and, thereafter, the invention of the integrated circuits (ICs), the influence of computers on society has increased hand over fist. Whereas, in the 1990s, we used to rely on keyboard and mouse to browse our first web pages and send our first emails, most people nowadays carry around, in their pocket, a device that lets them contact anyone, anywhere in the world, or access any piece of information from a data source more vast than all of the world's libraries combined. And all of this by simply swiping a screen or by using voice commands. But what does the future have in store for us? Where will this evolution bring us in the next 5-10 years?

Chapter Contents:

  • 10.1 Introduction: the contribution of wearable technology to ubiquitous computing
  • 10.2 Conventional wearable antennas
  • 10.2.1 On-body considerations
  • 10.2.2 Topologies and fabrication methods
  • 10.3 Substrate integrated waveguide technology for a new class of wearable microwave components
  • 10.3.1 Substrate integrated waveguides: fundamentals
  • 10.3.2 SIW techniques and textile materials
  • Fabrication technique
  • State of the art
  • 10.4 Textile substrate integrated waveguide designs
  • 10.4.1 Textile SIW cavity-backed slot antennas
  • Cavity-backed SIW antenna
  • Folded cavity-backed SIW antenna
  • 10.4.2 Half-mode SIW textile antenna
  • Introduction
  • Design and material selection
  • Validation
  • 10.4.3 Quarter-mode SIW antenna
  • Introduction
  • Design evolution
  • Design validation
  • 10.4.4 Wideband SIW cavity-backed slot antennas
  • Introduction
  • Bandwidth enhancement technique
  • Antenna materials and fabrication procedure
  • Wideband 2.45-GHz ISM band and 4G LTE textile SIW cavity-backed slot antenna
  • Ultra-wideband (UWB) textile SIW cavity-backed slot antenna
  • 10.4.5 Textile microwave components
  • SIW interconnect
  • Folded SIW interconnect
  • Folded SIW filter
  • 10.5 Textile SIW antennas as hybrid energy-harvesting platforms
  • 10.5.1 Introduction
  • 10.5.2 Exploiting the textile antenna as integration platform
  • 10.5.3 Wideband SIW textile antenna with integrated solar harvester
  • 10.5.4 SIW cavity-backed slot antenna with integrated hybrid energy-harvesting hardware
  • References

Inspec keywords: substrate integrated waveguides; integrated circuits; transistors; microwave devices

Other keywords: next generation wearable microwave systems; integrated circuits; vacuum tube; Web pages; textile substrate integrated waveguide technology; IC; voice commands

Subjects: Integrated circuits; Semiconductor devices; Waveguides and microwave transmission lines; Microwave circuits and devices

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