scholarly journals Phase-Delay Versus Phase-Rotation Cells for Circular Polarization Transmit Arrays—Application to Satellite Ka-Band Beam Steering

2018 ◽  
Vol 66 (3) ◽  
pp. 1236-1247 ◽  
Author(s):  
Parinaz Naseri ◽  
Sergio A. Matos ◽  
Jorge R. Costa ◽  
Carlos A. Fernandes
Keyword(s):  
Circular Polarization ◽  
Beam Steering ◽  
Phase Delay ◽  
Ka Band ◽  
Versus Phase ◽  
Phase Rotation ◽  
Transmit Arrays

A Ka-band Beam-Steering Transmitarray Achieving Dual-Circular Polarization

2021 ◽  
Author(s):  
Francesco Foglia Manzillo ◽  
Maciej Smierzchalski ◽  
Jacques Reverdy ◽  
Antonio Clemente
Keyword(s):  
Circular Polarization ◽  
Beam Steering ◽  
Ka Band

Circular Polarization Wide-Angle Beam Steering at Ka-Band by In-Plane Translation of a Plate Lens Antenna

2015 ◽  
Vol 63 (12) ◽  
pp. 5443-5455 ◽  
Author(s):  
Eduardo B. Lima ◽  
Sergio A. Matos ◽  
Jorge R. Costa ◽  
Carlos A. Fernandes ◽  
Nelson J. G. Fonseca
Keyword(s):  
Circular Polarization ◽  
Beam Steering ◽  
Wide Angle ◽  
Lens Antenna ◽  
Ka Band

scholarly journals 3D Printing of a Monolithic K/Ka-Band Dual-Circular Polarization Antenna-Feeding Network

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
G. Addamo ◽  
M. Lumia ◽  
F. Calignano ◽  
F. Paonessa ◽  
G. Virone ◽  
...  
Keyword(s):  
3D Printing ◽  
Circular Polarization ◽  
Ka Band

Design of the Ka-Band Satellite Antenna by Parallel Differential Evolution

2014 ◽  
Vol 556-562 ◽  
pp. 2194-2197 ◽  
Author(s):  
Jin Cui Guo ◽  
Xiao Qiu Liu ◽  
Wei Zhang ◽  
Bin Quan He
Keyword(s):  
Differential Evolution ◽  
Circular Polarization ◽  
Method Of Moments ◽  
Beam Width ◽  
Wide Beam ◽  
Satellite Antenna ◽  
Ka Band ◽  
Left Hand ◽  
Computing Platform

This paper designs a Ka-Band satellite antenna using parallel differential evolution (DE). The antenna is of wide beam-width and left hand circular polarization (LHCP). The electromagnetic numerical value is calculated by the improved software NEC2 based on the method of moments. The parallel differential evolution computing platform consists of some computers and MPI is used as the messaging protocol among computers. The single-arm Ka-Band antenna with 8-segments designed in this method has obtained very good performance including gains, axial ratios and VSWRs in a shorter period.

scholarly journals Dual-Circularly Polarized 60 GHz Beam-Steerable Antenna Array with 8 × 8 Butler Matrix

2020 ◽  
Vol 10 (7) ◽  
pp. 2413 ◽  
Author(s):  
Yuntae Park ◽  
Jihoon Bang ◽  
Jaehoon Choi
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Mutual Coupling ◽  
Beam Steering ◽  
60 Ghz ◽  
Circularly Polarized ◽  
Butler Matrix ◽  
Left Handed ◽  
Steerable Antenna ◽  
The Right

A beam-steerable dual-circularly polarized 60 GHz antenna array is proposed. A 1 × 4 dual-fed stacked patch antenna array is integrated with an 8 × 8 Butler matrix. By utilizing the 8 × 8 Butler matrix, the proposed antenna array generates dual-circular polarization with beam-steering capability. The proposed antenna array system demonstrates good reflection coefficients in the frequency band ranging from 55.3 GHz to 64.9 GHz and has a mutual coupling of less than −10 dB over the frequency range of 57.5 GHz–63.2 GHz. At 60 GHz, the maximum gains and beam-steering angles for input ports 2, 4, 5, and 7 are 9.39 dBi at −38°, 10.67 dBi at −11°, 10.63 dBi at +11°, and 9.38 dBi at +39°, respectively. It is also demonstrated that the dual-polarization is well formed by switching the excitation ports. The right-handed circular polarization (RHCP) is formed when four ports from port 1 to port 4 are excited and left-handed circular polarization (LHCP) is formed when four ports from port 5 to port 8 are excited. The proposed antenna array system could be a good candidate for millimeter-wave 5G applications that require wide beam coverage and polarization diversity.

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