Planar focusing antenna design by using coordinate transformation technology

2007 ◽  
Vol 91 (25) ◽  
pp. 253509 ◽  
Author(s):  
Fanmin Kong ◽  
Bae-Ian Wu ◽  
Jin Au Kong ◽  
Jiangtao Huangfu ◽  
Sheng Xi ◽  
...  
Keyword(s):  
Coordinate Transformation ◽  
Antenna Design

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.

A Novel Wideband Antenna Design Using U-slot

PIERS Online ◽  
2007 ◽  
Vol 3 (7) ◽  
pp. 1067-1070 ◽  
Author(s):  
Wenwen Chai ◽  
Xiaojuan Zhang ◽  
Jibang Liu
Keyword(s):  
Antenna Design ◽  
Wideband Antenna

A Novel Patch Antenna Design with Slotted Ground Plane for Satellite Communications

2017 ◽  
Vol 49 (004) ◽  
pp. 767--772
Author(s):  
G. AHMAD ◽  
M. I. BABAR ◽  
M. IRFAN ◽  
M. ASHRAF ◽  
T. JAN
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Satellite Communications ◽  
Antenna Design
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