A Compact Wideband Filter Based on Spoof Surface Plasmon Polaritons With a Wide Upper Rejection Band

2020 ◽  
Vol 32 (24) ◽  
pp. 1511-1514
Author(s):  
Dawei Zhang ◽  
Kuang Zhang ◽  
Qun Wu ◽  
Tao Jiang
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons ◽  
Rejection Band

scholarly journals Dynamic Modulation Band Rejection Filter Based on Spoof Surface Plasmon Polaritons

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 993
Author(s):  
Weigao Yang ◽  
Lixiang Liu ◽  
Xiaoqiang Su ◽  
Lijuan Dong ◽  
Yanhong Liu ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Fundamental Mode ◽  
Propagation Mode ◽  
Dynamic Modulation ◽  
Time Modulation ◽  
Rejection Filter ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons ◽  
Rejection Band

In this paper, we proposed a dynamic modulation band rejection filter based on the spoof surface plasmon polaritons (SSPPs) waveguide. The dynamic adjusting mainly derives from changing the capacitance between the U-shape and the waveguide configuration. The capacitance can modulate the cut-off frequency of fundamental mode. The rejection band is formed by the high order propagation mode and the cut-off frequency of fundamental mode. We analyzed the dispersion curve and transmission performance of the band rejection filter with different capacitances. Compared with the previous scheme, the design we proposed here has a simpler and more delicate configuration to process and decreases the mechanical error. We experimentally demonstrated the excellent performance of the device by changing the direct voltage loaded on the varactor diode and achieved real time modulation around 2 GHz.

scholarly journals Tilted-Beam Antenna Based on SSPPs-TL with Stable Gain

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3288
Author(s):  
Dujuan Wei ◽  
Youlin Geng ◽  
Pengquan Zhang ◽  
Zhonghai Zhang ◽  
Chuan Yin
Keyword(s):  
Surface Plasmon ◽  
Slow Wave ◽  
Surface Plasmon Polaritons ◽  
Transmission Lines ◽  
Design Theory ◽  
Metal Plate ◽  
Wave Radiation ◽  
Gain Bandwidth ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

In this paper, a titled-beam antenna based on spoof surface plasmon polaritons (SSPPs) transmission lines (TLs) is proposed. The parallel SSPPs-TL is a slow-wave TL, which is able to limit waves in the TL strictly. By periodically introducing a set of tapered stubs along the SSPPs-TL, the backward endfire beams are formed by the surface waves in the slow-wave radiation region. Then, through the placement of a big metal plate below the endfire antenna, the backward endfire beams are tilted, and the tilted angle of the beams are steered by the distance of the metal plate and antenna. Over the band of 5.7 GHz~7.0 GHz, the tilted antenna performs constant shapes of radiation patterns. The gain keeps stable at around 12 dBi and the 1-dB gain bandwidth is 20%. The measured results of the fabricated prototypes confirm the design theory and simulated results.

Measuring equi-frequency contours of spoof surface plasmon polaritons

2015 ◽  
Author(s):  
A. Kap-Joong Kim ◽  
B. Seong-Han Kim ◽  
C. Chul-Sik Kee ◽  
D. Yong-Hee Lee
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons
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