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Three-dimensional multiway power dividers based on transformation optics.

Wu YL, Zhuang Z, Deng L, Liu YA - Sci Rep (2016)

Bottom Line: It comprises of several nonisotropic mediums and one isotropic medium without any lumped and distributed elements.In addition, the location of the split point can be employed to obtain unequal power dividers.The excellent simulated results verify the novel design method for power dividers.

View Article: PubMed Central - PubMed

Affiliation: Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, P.O. Box. 282, 100876, Beijing, China.

ABSTRACT
The two-dimensional (2D) or three-dimensional (3D) multiway power dividers based on transformation optical theory are proposed in this paper. It comprises of several nonisotropic mediums and one isotropic medium without any lumped and distributed elements. By using finite embedded coordinate transformations, the incident beam can be split and bent arbitrarily in order to achieve effective power division and transmission. In addition, the location of the split point can be employed to obtain unequal power dividers. Finally, several typical examples of the generalized power divider without limitation in 3D space are performed, which shows that the proposed power divider can implement required functions with arbitrary power division and arbitrary transmission paths. The excellent simulated results verify the novel design method for power dividers.

No MeSH data available.


Related in: MedlinePlus

Results of the proposed 3D-FWEPD.(a) Power flow distributions in x-y plane. (b) Power flow distributions in y-z plane. (c) Power flow distributions in z-x plane. The value of input power calculated by surface integral is 16.9 μW, whereas the values of four output powers are equal to 4.53 μW.
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f5: Results of the proposed 3D-FWEPD.(a) Power flow distributions in x-y plane. (b) Power flow distributions in y-z plane. (c) Power flow distributions in z-x plane. The value of input power calculated by surface integral is 16.9 μW, whereas the values of four output powers are equal to 4.53 μW.

Mentions: As shown in equation (8), the transmission paths in 3D space can be tuned by the parameters a, d, and k. To validate the proposed design methods of 3D MWPD, we adopt full wave simulations based on the multiphysics simulation tool as a finite element solver. The corresponding simulated examples operated at 3 GHz are illustrated in Figs. 4 and 5. Hereinto, Fig. 4 shows the isosurface for power flows of a 3D two-way unequal power divider (TWUPD) with a = ±0.12 m, d = 0.004 m, and k = 1, whereas the isosurface for power flows of a 3D four-way equal power divider (FWEPD) is shown in Fig. 5 with a = ±0.12 m, d = 0, and k = ±1. For the sake of showing the function with power division, the values of power can be calculated by surface integral in input and output ports. Besides, the sizes of 3D-TWUPD and 3D-FWEPD except for the incident field are about 0.005292 m3 (0.21 × 0.12 × 0.21 m3) and 0.00324 m3 (0.18 × 0.1 × 0.18 m3), respectively. Note that the length along z can be controlled by the parameter k according to practical applications. Similarly, the 3D MWPD can be designed by the transformation optical theory, with functions of arbitrary multiway transmission paths and arbitrary power division.


Three-dimensional multiway power dividers based on transformation optics.

Wu YL, Zhuang Z, Deng L, Liu YA - Sci Rep (2016)

Results of the proposed 3D-FWEPD.(a) Power flow distributions in x-y plane. (b) Power flow distributions in y-z plane. (c) Power flow distributions in z-x plane. The value of input power calculated by surface integral is 16.9 μW, whereas the values of four output powers are equal to 4.53 μW.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835709&req=5

f5: Results of the proposed 3D-FWEPD.(a) Power flow distributions in x-y plane. (b) Power flow distributions in y-z plane. (c) Power flow distributions in z-x plane. The value of input power calculated by surface integral is 16.9 μW, whereas the values of four output powers are equal to 4.53 μW.
Mentions: As shown in equation (8), the transmission paths in 3D space can be tuned by the parameters a, d, and k. To validate the proposed design methods of 3D MWPD, we adopt full wave simulations based on the multiphysics simulation tool as a finite element solver. The corresponding simulated examples operated at 3 GHz are illustrated in Figs. 4 and 5. Hereinto, Fig. 4 shows the isosurface for power flows of a 3D two-way unequal power divider (TWUPD) with a = ±0.12 m, d = 0.004 m, and k = 1, whereas the isosurface for power flows of a 3D four-way equal power divider (FWEPD) is shown in Fig. 5 with a = ±0.12 m, d = 0, and k = ±1. For the sake of showing the function with power division, the values of power can be calculated by surface integral in input and output ports. Besides, the sizes of 3D-TWUPD and 3D-FWEPD except for the incident field are about 0.005292 m3 (0.21 × 0.12 × 0.21 m3) and 0.00324 m3 (0.18 × 0.1 × 0.18 m3), respectively. Note that the length along z can be controlled by the parameter k according to practical applications. Similarly, the 3D MWPD can be designed by the transformation optical theory, with functions of arbitrary multiway transmission paths and arbitrary power division.

Bottom Line: It comprises of several nonisotropic mediums and one isotropic medium without any lumped and distributed elements.In addition, the location of the split point can be employed to obtain unequal power dividers.The excellent simulated results verify the novel design method for power dividers.

View Article: PubMed Central - PubMed

Affiliation: Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, P.O. Box. 282, 100876, Beijing, China.

ABSTRACT
The two-dimensional (2D) or three-dimensional (3D) multiway power dividers based on transformation optical theory are proposed in this paper. It comprises of several nonisotropic mediums and one isotropic medium without any lumped and distributed elements. By using finite embedded coordinate transformations, the incident beam can be split and bent arbitrarily in order to achieve effective power division and transmission. In addition, the location of the split point can be employed to obtain unequal power dividers. Finally, several typical examples of the generalized power divider without limitation in 3D space are performed, which shows that the proposed power divider can implement required functions with arbitrary power division and arbitrary transmission paths. The excellent simulated results verify the novel design method for power dividers.

No MeSH data available.


Related in: MedlinePlus