Surface Plasmon Polariton Leaky-wave Antennas with Wideband Arbitrary Multibeam Radiation

2021 ◽  
pp. 1-1
Author(s):  
Yongsheng Pan ◽  
Yang Cheng ◽  
Yuandan Dong
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Leaky Wave ◽  
Plasmon Polariton

Wide-angle Frequency Scanning Antenna Achieved by Leaking Spoof Surface Plasmon Polariton

Frequenz ◽  
2020 ◽  
Vol 74 (5-6) ◽  
pp. 183-190
Author(s):  
Manlan Deng
Keyword(s):  
Surface Plasmon ◽  
Slow Wave ◽  
Surface Plasmon Polariton ◽  
Wave Radiation ◽  
Wide Angle ◽  
Leaky Wave ◽  
Beam Scanning ◽  
Frequency Scanning ◽  
Plasmon Polariton ◽  
Scanning Antenna

AbstractInspired by the theory of leaky wave antenna, a broadband and wide-angle frequency scanning antenna is proposed in this paper. My goal is to trade a narrow frequency band for a wide-angle beam scanning. Since the dispersion of spoof surface plasmon polariton (SSPP) mode slow-wave possesses larger gradient than that of the waves in the air, the metallic corrugated line (MCL) is adopted for energy transmission. To convert confined slow-wave into radiated fast-wave, a number of metallic patches are alternatively and periodically loaded besides the MCL and fed by electrically coupling. Owing to the frequency-dispersive phase difference between two patches, the resultant radiations are capable of beam scanning. As an example, the fabricated prototype operates in a relative bandwidth of 19.5 % (from 7.4 GHz to 9.0 GHz). Both the simulated and measured results have verified that the main beam of leaky-wave radiation can continuously scan from the backward direction to the forward direction with a scanning angular domain of 56° and an average gain level of 12.0 dB.

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