Circularly-Polarized Focused Microstrip Antenna Arrays

2016 ◽  
Vol 15 ◽  
pp. 52-55 ◽  
Author(s):  
Yuhai Jiang ◽  
Wen Geyi ◽  
Lingsheng Yang ◽  
Hucheng Sun
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Circularly Polarized

scholarly journals Design of Multilevel Sequential Rotation Feeding Networks Used for Circularly Polarized Microstrip Antenna Arrays

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Aixin Chen ◽  
Chuo Yang ◽  
Zhizhang Chen ◽  
Yanjun Zhang ◽  
Yingyi He
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Satellite Communication ◽  
Phased Array ◽  
Improve Performance ◽  
Multiple Series ◽  
Circularly Polarized ◽  
Microstrip Antenna Array ◽  
Feeding Techniques

Sequential rotation feeding networks can significantly improve performance of the circularly polarized microstrip antenna array. In this paper, single, double, and multiple series-parallel sequential rotation feeding networks are examined. Compared with conventional parallel feeding structures, these multilevel feeding techniques present reduction of loss, increase of bandwidth, and improvement of radiation pattern and polarization purity. By using corner-truncated square patch as the array element and adopting appropriate level of sequential rotation series-parallel feeding structures as feeding networks, microstrip arrays can generate excellent circular polarization (CP) over a relatively wide frequency band. They can find wide applications in phased array radar and satellite communication systems.

Circularly polarized microstrip antenna arrays with reduced mutual coupling using metamaterial

2015 ◽  
Vol 8 (8) ◽  
pp. 1253-1263 ◽  
Author(s):  
R. Hafezifard ◽  
Jalil Rashed-Mohassel ◽  
Mohammad Naser-Moghadasi ◽  
R. A. Sadeghzadeh
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Ground Plane ◽  
High Gain ◽  
Ring Resonators ◽  
Magnetic Characteristics ◽  
Circularly Polarized ◽  
Antenna Performance ◽  
Left Handed

A circularly polarized (CP) and high gain Microstrip antenna is designed in this paper using metamaterial concepts. The antenna, built on a metamaterial substrate, showed significant size reduction and less mutual coupling in an array compared with similar arrays on conventional substrates. Demonstrated to have left-handed magnetic characteristics, the methodology uses complementary split-ring resonators (SRRs) placed horizontally between the patch and the ground plane. In order to reduce mutual coupling in the array structure, hexagonal-SRRs are embedded between antenna elements. The procedure is shown to have great impact on the antenna performance specifically its bandwidth which is broadened from 400 MHz to 1.2 GHz for X-band and as well as its efficiency. The structure has also low loss and improved standing wave ratio and less mutual coupling. The results show that a reduction of 26.6 dB in mutual coupling is obtained between elements at the operation frequency of the array. Experimental data show a reasonably good agreement between simulation and measured results.

Circularly polarized space-fed microstrip antenna arrays

2010 ◽  
Vol 52 (10) ◽  
pp. 2221-2223 ◽  
Author(s):  
Rahul Bhide ◽  
Girish Kumar
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Circularly Polarized

scholarly journals Wheel-shaped miniature assembly of circularly polarized wideband microstrip antenna for 5G mmWave terminals

2021 ◽  
Vol 60 (2) ◽  
pp. 2457-2470
Author(s):  
Shahanawaz Kamal ◽  
Mohd Fadzil Bin Ain ◽  
Ubaid Ullah ◽  
Abdullahi S.B. Mohammed ◽  
Fathul Najmi ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Circularly Polarized
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