A broadband dual circularly polarized shared‐aperture antenna array using characteristic mode analysis for 5G applications

2021 ◽  
Vol 31 (3) ◽  
Author(s):  
Kai Gao ◽  
Xiaoxiang Ding ◽  
Li Gu ◽  
Yanwen Zhao ◽  
Zaiping Nie
Keyword(s):  
Antenna Array ◽  
Mode Analysis ◽  
Aperture Antenna ◽  
Characteristic Mode ◽  
Circularly Polarized

Circularly Polarized RFID Tag Antenna Design for Metallic Poles Using Characteristic Mode Analysis

2019 ◽  
Vol 18 (7) ◽  
pp. 1327-1331 ◽  
Author(s):  
Yi Yan ◽  
Jun Ouyang ◽  
Xiao Ma ◽  
Rui Wang ◽  
Abubakar Sharif
Keyword(s):  
Antenna Design ◽  
Mode Analysis ◽  
Characteristic Mode ◽  
Rfid Tag ◽  
Circularly Polarized

Characteristic mode-based compact circularly polarized metasurface antenna for in-band RCS reduction

2019 ◽  
Vol 12 (2) ◽  
pp. 131-137
Author(s):  
Puneeth Kumar Rajanna ◽  
Karthik Rudramuni ◽  
Krishnamoorthy Kandasamy
Keyword(s):  
Satellite Communication ◽  
Axial Ratio ◽  
Slot Antenna ◽  
Mode Analysis ◽  
Impedance Bandwidth ◽  
Compact Structure ◽  
Characteristic Mode ◽  
Circularly Polarized ◽  
Rectangular Patch ◽  
Full Wave Analysis

AbstractThis paper presents a novel design of a low profile circularly polarized (CP) metasurface (MTS) antenna with in-band radar cross-section (RCS) reduction property. The MTS is loaded as a superstrate on slot antenna and it can be viewed as a polarization-dependent MTS (PDMTS). The rectangular patch-based PDMTS is analyzed using characteristic mode analysis to find two orthogonal degenerate modes, which produces CP waves. Linearly polarized slot antenna is used to excite the PDMTS. The performance of PDMTS loaded slot antenna is analyzed numerically using full-wave analysis method. The PDMTS CP antenna is fabricated and its performance is tested experimentally. The proposed antenna has a compact structure and it has an overall size of $0.52{\lambda _0}\times 0.52{\lambda _0} \times 0.078{\lambda _0}$ (where ${\lambda _0}$ is the free space wavelength). The measured results show that the PDMTS antenna achieves $-10\,{\rm dB}$ impedance bandwidth of 29.41$\%$, 3-dB axial ratio bandwidth of 9.05$\%$, broadside gain of 6.34 dB, and monostatic RCS reduction of $-30.2\,{\rm dBsm}$ at the resonant frequency of 5.86 GHz. The simulated results are in well agreement with the measured results and it is well suited for C-band Radar and Satellite communication.

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