Arrays and New Antenna Topologies for Increasing THz Power Generation Using Photomixers

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• 作者：Alejandro Rivera-Lavado (1)
  Luis Enrique García-Mu?oz (1)
  Gottfried Dohler (2)
  Stefan Malzer (2)
  Sascha Preu (2)
  Sebastian Bauerschmidt (2)
  Javier Montero-de-Paz (1)
  Eduardo Ugarte-Mu?oz (1)
  Belén Andrés-García (1)
  Virginia Izquierdo-Bermúdez (1)
  Daniel Segovia-Vargas (1)
  
• 关键词：High power terahertz ; Horn antennas ; Photomixers ; Planar antennas ; Lenses ; Arrays ; Spiral antennas ; Terahertz
• 刊名：Journal of Infrared, Millimeter and Terahertz Waves
• 出版年：2013
• 出版时间：February 2013
• 年：2013
• 卷：34
• 期：2
• 页码：97-108
• 全文大小：859KB
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• 作者单位：Alejandro Rivera-Lavado (1)
  Luis Enrique García-Mu?oz (1)
  Gottfried Dohler (2)
  Stefan Malzer (2)
  Sascha Preu (2)
  Sebastian Bauerschmidt (2)
  Javier Montero-de-Paz (1)
  Eduardo Ugarte-Mu?oz (1)
  Belén Andrés-García (1)
  Virginia Izquierdo-Bermúdez (1)
  Daniel Segovia-Vargas (1)
  
  1. Carlos III University of Madrid, 28911, Madrid, Spain
  2. Friedrich-Alexander - Universit?t Erlangen-Nürnberg, Erlangen, Germany
  
• ISSN：1866-6906

文摘

Power limitations in CW THz generation imposed by conventional photomixers (“antenna emitters- AEs) are the major drawbacks on THz generation. From the antenna point of view, two different strategies are proposed to increase the generated power: optimized arrays and lenses arrangements and the use of new dielectric horn antennas. Then, using multiple small lenses, one per each single element, instead of a large one, bigger than the array, makes the generated power much higher. In addition, horn antennas etched in the substrate are considered in order to reduce the energy distribution scattering. Finally, some manufacturing issues are discussed.