Application of coordinate transformation for novel antenna design techniques

2012 ◽  
Author(s):  
P.-H. Tichit ◽  
S. N. Burokur ◽  
X. Wu ◽  
A. de Lustrac
Keyword(s):  
Coordinate Transformation ◽  
Antenna Design ◽  
Design Techniques

A review on wideband microstrip patch antenna design techniques

2013 ◽  
Author(s):  
Muhammad Imran Nawaz ◽  
Zhao Huiling ◽  
Muhammad Sabir Sultan Nawaz ◽  
Khalid Zakim ◽  
Shah Zamin ◽  
...  
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Microstrip Patch ◽  
Design Techniques

scholarly journals A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 2000
Author(s):  
Madiha Farasat ◽  
Dushmantha N. Thalakotuna ◽  
Zhonghao Hu ◽  
Yang Yang
Keyword(s):  
Wireless Networks ◽  
Return Loss ◽  
Base Station ◽  
Antenna Design ◽  
Compact Antenna ◽  
Base Station Antennas ◽  
Close Proximity ◽  
Design Challenges ◽  
Design Techniques

Modern wireless networks such as 5G require multiband MIMO-supported Base Station Antennas. As a result, antennas have multiple ports to support a range of frequency bands leading to multiple arrays within one compact antenna enclosure. The close proximity of the arrays results in significant scattering degrading pattern performance of each band while coupling between arrays leads to degradation in return loss and port-to-port isolations. Different design techniques are adopted in the literature to overcome such challenges. This paper provides a classification of challenges in BSA design and a cohesive list of design techniques adopted in the literature to overcome such challenges.

scholarly journals Novel antenna concepts via coordinate transformation

2013 ◽  
Vol 2 (1) ◽  
pp. 25 ◽  
Author(s):  
P.-H. Tichit ◽  
S. N. Burokur ◽  
X. Wu ◽  
D. Germain ◽  
A. De Lustrac
Keyword(s):  
Coordinate Transformation ◽  
Electromagnetic Waves ◽  
Near Field ◽  
Antenna Design ◽  
Electromagnetic Properties ◽  
Field Pattern ◽  
Radiation Properties ◽  
Space Coordinate ◽  
And Control ◽  
Far Field Pattern

Coordinate transformation is an emerging field which offers a powerful and unprecedented ability to manipulate and control electromagnetic waves. Using this tool, we demonstrate the design of novel antenna concepts by tailoring their radiation properties. The wave manipulation is enabled through the use of engineered dispersive composite metamaterials that realize the space coordinate transformation. Three types of antennas are considered for design: a directive, a beam steerable and a quasi-isotropic one. Numerical simulations together with experimental measurements are performed in order to validate the coordinate transformation concept. Near-field cartography and far-field pattern measurements performed on a fabricated prototype agree qualitatively with Finite Element Method (FEM) simulations. It is shown that a particular radiation pattern can be tailored at ease into a desired one by modifying the electromagnetic properties of the space around radiator. This idea opens the way to novel antenna design techniques for various application domains such as the aeronautical and transport fields.

scholarly journals Highly Directional Small-Size Antenna Designed with Homogeneous Transformation Optics

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Zuojia Wang ◽  
Lian Shen ◽  
Jun Chen ◽  
Huaping Wang ◽  
Faxin Yu ◽  
...  
Keyword(s):  
Coordinate Transformation ◽  
Regular Polygon ◽  
Virtual Space ◽  
Transformation Optics ◽  
Antenna Design ◽  
Radiation Patterns ◽  
Antenna Aperture ◽  
Material Parameters ◽  
Large Size

Achieving high directivity antenna usually requires a large size antenna aperture in traditional antenna design. Previous work shows that, with the help of metamaterials and transformation optics, a small size antenna can perform as high directivity as a large size antenna, but the material parameters are inhomogeneous and difficult to realize. In this paper, we propose a linear homogeneous coordinate transformation to design the small size antenna. Distinguishing from inhomogeneous transformation, we construct a regular polygon in virtual space and then divide it into several triangle segments. By applying linear homogeneous coordinate transformation, the antenna devices can be greatly compressed without disturbing the radiation patterns by using homogeneous metamaterial substrates. The material parameters of the antenna designed from this method are homogeneous and easy to fabricate. Square and hexagonal antenna structures are numerically demonstrated to illustrate the validity of our methodology.

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