Skew-grid frequency selective surface with rectangular apertures for use on a Ka-band beam waveguide antenna

Jacqueline C. Chen

doi:10.1117/12.2297966

4 December 2017 Skew-grid frequency selective surface with rectangular apertures for use on a Ka-band beam waveguide antenna

Jacqueline C. Chen

Author Affiliations +

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 157671 (2017) https://doi.org/10.1117/12.2297966
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

The Deep Space Network has a need for a frequency selective surface (FSS) to simultaneously receive X- and Ka-bands on a beam waveguide antenna where a ultra-low-noise maser is used at Ka-band (Fig. 1). The plate is required to pass circular polarized wave at (1) the Ka-band downlink (31.8–32.3 GHz) with a low insertion loss (possibly as low as 0.04 dB), (2) the Mars Observer spacecraft Ka-band Beacon Link Experiment (KABLE) frequency (33.6–33.8 GHz) with an insertion loss of 0.2 dB, and (3) a high-power Ka-band uplink (34.2–34.7 GHz), while at same time reflecting the X-band downlink (8.4–8.5 GHz). A thin FSS with apertures or patches is not mechanically suitable for these requirements, therefore a thick metallic plate with rectangular apertures is considered. Mechanical constraints also require an oblique angle of incidence, while bandwidth considerations dictate the use of a skew grid (Fig. 2).

Citation Download Citation

Jacqueline C. Chen "Skew-grid frequency selective surface with rectangular apertures for use on a Ka-band beam waveguide antenna", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 157671 (4 December 2017); https://doi.org/10.1117/12.2297966

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