Dual polarization wide-band interleaved spiral antenna array

2007 ◽  
Author(s):  
R. Guinvarc'h
Keyword(s):  
Antenna Array ◽  
Wide Band ◽  
Dual Polarization ◽  
Spiral Antenna

scholarly journals WIDE-BAND PATCH ANTENNA ARRAY WITH LOW CROSS-POLARIZATION CHARACTERISTICS

2017 ◽  
Vol 71 ◽  
pp. 23-28
Author(s):  
Feibiao Dong ◽  
Limei Xu ◽  
Xue-Sheng Li ◽  
Min Chen ◽  
Xiao-Mei Xie
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Wide Band ◽  
Cross Polarization ◽  
Polarization Characteristics

scholarly journals Dual-Wide-Band Dual Polarization Terahertz Linear to Circular Polarization Converters based on Bi-Layered Transmissive Metasurfaces

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 869 ◽  
Author(s):  
Ayesha Kosar Fahad ◽  
Cunjun Ruan ◽  
Kanglong Chen
Keyword(s):  
Circular Polarization ◽  
Wide Band ◽  
Dual Band ◽  
Geometrical Parameters ◽  
Fractional Bandwidth ◽  
Validity And Reliability ◽  
Dual Polarization ◽  
High Frequency Structure Simulator ◽  
Outer Conductor ◽  
The Impact

Transmissive metasurface-based dual-wide-band dual circular polarized operation is needed to facilitate volume and size reduction along with polarization diversity for future THz wireless communication. In this paper, a novel dual-wide-band THz linear polarization to circular polarization (LP-to-CP) converter is proposed using transmissive metasurfaces. It converts incident X polarized waves into transmitted left-hand circular polarized (LHCP) and right-hand circular polarized (RHCP) waves at two frequency bands. The structure consists of bi-layered metasurfaces having an outer conductor square ring and three inner conductor squares diagonally intersecting each other. The proposed converter works equally well with incident Y polarizations. Operational bandwidths for the dual-band LP-to-CP are 1.16 THz to 1.634 THz (34% fractional bandwidth) and 3.935 THz to 5.29 THz (29% fractional bandwidth). The electromagnetic simulation was carried out in two industry-standard software packages, High Frequency Structure Simulator (HFSS) and Computer Simulation Technology (CST), using frequency and time domain solvers respectively. Close agreement between results depicts the validity and reliability of the proposed design. The idea is supported by equivalent circuits and physical mechanisms involved in the dual-wide-band dual polarization operation. The impact of different geometrical parameters of the unit cell on the performance of LP-to-CP operation is also investigated.

A compact passive broadband hexagonal spiral antenna array for VHF remote sensing

2007 ◽  
Author(s):  
Richard J. Barton ◽  
Peter J. Collins ◽  
Paul E. Crittenden ◽  
Michael J. Havrilla ◽  
Andrew J. Terzuoli
Keyword(s):  
Remote Sensing ◽  
Antenna Array ◽  
Spiral Antenna
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