Improved splash-plate feed parabolic reflector antenna for Ka-Band VSAT applications

Yavuz A., Eren C., YEĞİN K., Ozdemir C.

46th European Microwave Conference, EuMC 2016, London, England, 4 - 06 October 2016, pp.1283-1286 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/eumc.2016.7824585
  • City: London
  • Country: England
  • Page Numbers: pp.1283-1286
  • Keywords: Corrugated surfaces, Hat-feed, Low sidelobe, Parabolic reflector antenna, Reflector antenna, Splash plate feed
  • Recep Tayyip Erdoğan University Affiliated: No

Abstract

In this study, we propose a conical dielectric loaded circular waveguide opening to splash plate subreflector for parabolic antenna feed. Corrugations on the dielectric lens and splash-plate structure are optimized for antenna performance. The feed structure is designed as axi-symmetric to support zero-order azimuth currents for low cross-polarization. Resulting structure offers good gain, low sidelobe, good cross-polarization, and low VSWR for Ka-band VSAT applications where receive and transmit frequency bands are 20.2-21.2 GHz and 30-31 GHz, respectively.