Dual fed circularly polarized microstrip patch array antenna for radar application

2011 ◽  
Author(s):  
Guruprasad V. Burshe ◽  
Sanjay V. Khobragade ◽  
V. R. Anitha
Keyword(s):  
Array Antenna ◽  
Circularly Polarized ◽  
Microstrip Patch

scholarly journals High Gain of 2x1 Simulated Circularly Polarized Rectangular Microstrip Patch Array Antenna

2020 ◽  
Vol 917 ◽  
pp. 012071
Author(s):  
Nurasma Husna ◽  
Mohd Aminudin Jamlos ◽  
Wan Azani Mustafa ◽  
Syed Zulkarnain Syed Idrus
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Circularly Polarized ◽  
Microstrip Patch

Circularly Polarized Traveling-Wave Array Antenna With Novel Microstrip Patch Element

2007 ◽  
Vol 6 ◽  
pp. 572-574 ◽  
Author(s):  
Paul Hallbjorner ◽  
Ingvar Skarin ◽  
Kajsa From ◽  
Anders Rydberg
Keyword(s):  
Traveling Wave ◽  
Array Antenna ◽  
Circularly Polarized ◽  
Microstrip Patch

scholarly journals Design and Simulation of Metamaterial based Circularly Polarized Antenna Array

2021 ◽  
Vol 23 (08) ◽  
pp. 437-442
Author(s):  
Rohini G.Bhatkoorse ◽  
◽  
Dr. Mahesh A ◽  
Keyword(s):  
Resonant Frequency ◽  
Mutual Coupling ◽  
Coupling Effect ◽  
Array Antenna ◽  
Negative Permittivity ◽  
Metamaterial Structure ◽  
Circularly Polarized ◽  
Microstrip Patch ◽  
Planar Shape ◽  
Permittivity And Permeability

The microstrip patch array antenna is usually designed as a broadside radiator. The radiating area of the patch can be of any planar shape from elliptical to square, but rectangular is preferred over other shapes. When elements of antenna are repeated, it is called as an array of antennas. When the distance between antennas is reduced, mutual coupling effect occurs. This effect occurs when the distance between the antennas is less than 0.5and this affects the gain and efficiency of the antennas. This effect can be reduced by using metamaterials. To reduce the mutual coupling between the antenna elements the metamaterial structure is artificially designed to obtain negative permittivity and permeability using HFSS and the results are verified using MATLAB. These metamaterials are placed between the patch elements of 1×2 circularly polarized array antenna when the distance between the patches is 0.2 for both RT duroid and FR4 epoxy substrate for 5GHz resonant frequency.

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