Authors: Louis WY LIU
This paper presents an antenna that generates a frequency steerable endfire electromagnetic radiation out of a spoof surface plasmon polariton (SSPP) transmission line mounted in the center E-plane of a rectangular waveguide. The SSPP transmission has both its upper edge and lower edge patterned with corrugated metal slot/gap arrays of the same period. However, the slot depth on the corrugated pattern along the upper edge is different from the slot depth on the corrugated pattern along the lower edge. This arrangement creates a difference in surface impedance between the upper corrugated edge and the low corrugated edge on the SSPP transmission line, thus allowing the angle of the endfire radiation to be shifted upwards and downwards. According to our simulation, the angle of endfire radiation can be shifted by at least 10 degree simply by varying the operating frequencies.
Comments: 11 Pages. 2018 IEEE INDIAN CONFERENCE ON ANTENNAS AND PROPAGATION (InCAP)
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