140 GHz Linear to Circular Polarization Convertor Based on Modified Cross Slot Frequency Selective Surface with High Selectivity

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140 GHz Linear to Circular Polarization Convertor Based on Modified Cross Slot Frequency Selective Surface with High Selectivity

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  • DOI:  10.1049/cp.2018.0436
  • ISBN: 978-1-78561-816-1
  • Location: London, UK
  • Conference date: 9-13 April 2018
  • Format: PDF
A 140 GHz linear to circular polarization converter based on a frequency selective surface (FSS) with high selectivity is proposed and designed in this paper. The periodic element of the converter includes a square substrate integrated waveguide (SIW) cavity and two cross slots with stubs etched on the top and bottom conductor claddings of the cavity. Based on the SIW cavity, a transmission pole is provided to improve passband characteristics and sideband selectivity. Besides, this THz converter can be easily fabricated using normal PCB process instead of compacted and high-cost technologies.

Inspec keywords: slot antennas; frequency selective surfaces; claddings; convertors; electromagnetic wave polarisation; millimetre wave antennas; printed circuits; etching; substrate integrated waveguides; antenna radiation patterns

Subjects: Convertors; Waveguides and microwave transmission lines; Printed circuits; Single antennas; Microwave materials and structures

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