A uniplanar quasi-Yagi antenna with wide bandwidth and low mutual coupling characteristics

2003 ◽  
Author(s):  
Yongxi Qian ◽  
W.R. Deal ◽  
N. Kaneda ◽  
T. Itoh
Keyword(s):  
Mutual Coupling ◽  
Wide Bandwidth ◽  
Yagi Antenna ◽  
Coupling Characteristics

Mutual coupling reduction in planar Yagi antenna array using bidirectional absorbing metasurface

2019 ◽  
Vol 30 (2) ◽  
Author(s):  
Ziyu Xu ◽  
Zheng Zhao ◽  
Qisheng Zhang ◽  
Shichu Yan ◽  
Linyan Guo ◽  
...  
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Yagi Antenna ◽  
Mutual Coupling Reduction

scholarly journals Mid-Infrared Polarization Beam Splitter based on Square/circular Hybrid Air Holes with Wide Bandwidth and Ultrashort Length

2021 ◽  
Author(s):  
Guangming Zheng
Keyword(s):  
Finite Element Method ◽  
Mode Coupling ◽  
Beam Splitter ◽  
Extinction Ratio ◽  
Polarization Beam Splitter ◽  
The Finite Element Method ◽  
Wide Bandwidth ◽  
Mid Infrared ◽  
High Birefringence ◽  
Coupling Characteristics

Abstract A novel mid-infrared polarization beam splitter (PBS) based on GaS is proposed. The high birefringence is achieved by using the cladding structure of alternating arrangement of square and circular air holes as well as introducing double elliptical air holes. The finite element method (FEM) is utilized to investigate the mode coupling characteristics in the proposed PBS. The results show that the highest extinction ratio of 115 dB and shortest length of only 40 µm can be realized at a wavelength of 4 µm. A wide bandwidth of 200 nm ranging from 3.9µm to 4.1µm is obtained.

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