A Q-Band Low-Profile Dual Circularly Polarized Array Antenna Incorporating Linearly Polarized Substrate Integrated Waveguide-Fed Patch Subarrays

2017 ◽  
Vol 65 (10) ◽  
pp. 5200-5210 ◽  
Author(s):  
Jun Xu ◽  
Wei Hong ◽  
Zhi Hao Jiang ◽  
Jixin Chen ◽  
Hui Zhang
Keyword(s):  
Array Antenna ◽  
Substrate Integrated Waveguide ◽  
Circularly Polarized ◽  
Low Profile ◽  
Linearly Polarized

A New Design of Ka-Band Circularly-Polarized Antenna

2014 ◽  
Vol 631-632 ◽  
pp. 383-386
Author(s):  
Jiao Jiao Fan ◽  
Jian Li ◽  
Dan Song ◽  
Li Wu ◽  
Shu Sheng Peng
Keyword(s):  
High Frequency ◽  
Circular Waveguide ◽  
Ka Band ◽  
Circularly Polarized ◽  
Simulation And Optimization ◽  
Total Height ◽  
High Frequency Structure Simulator ◽  
Frequency Structure ◽  
Low Profile ◽  
Linearly Polarized

A new ka-band circularly-polarized antenna is presented in this paper, in which a linearly-polarized wave is conversed into a circularly-polarized wave with a circular waveguide polarizer. After simulation and optimization with HFSS (High Frequency Structure Simulator), a compact circularly-polarized antenna is designed with a total height less than 25mm. More simple and easier structure is adopted to achieve a low-profile circularly-polarized antenna.

Design and parametric analysis of a planar array antenna for circular polarization

2015 ◽  
Vol 8 (6) ◽  
pp. 921-929 ◽  
Author(s):  
Muhammad Asad Rahman ◽  
Quazi Delwar Hossain ◽  
Md. Azad Hossain ◽  
Eisuke Nishiyama ◽  
Ichihiko Toyoda
Keyword(s):  
Circular Polarization ◽  
Array Antenna ◽  
Design System ◽  
Impedance Bandwidth ◽  
Circularly Polarized ◽  
Feed Line ◽  
Linearly Polarized ◽  
Planar Array ◽  
Feed Network ◽  
Four Square

A new circularly polarized planar array antenna using linearly polarized microstrip patches is designed and optimized for X-band wireless communication applications. Four square patch elements with feed network are used to design the circularly polarized array antenna. The feed network consists of microstrip lines on the obverse side of the dielectric substrate and slot line on the reverse side of the substrate. Both-sided MIC technology is successfully employed to apply its inherent advantages in the design process of the array structure. The unequal feed line is used to create 90° phase difference between the linearly polarized patches. Therefore, the circular polarization is realized by the combination of linearly polarized patches and unequal feed line. Characteristics of the proposed array are investigated by using two electromagnetic (EM) simulators: advanced design system and EMPro. The −10 dB impedance bandwidth of the antenna is around 5%. The 3 dB axial ratio bandwidth of 1.48% is obtained. The design of the proposed antenna along with parametric study is presented and discussed.

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