title: Non-contact radio frequency shielding and wave guiding by multi-folded transformation optics method.
abstract: Compared with conventional radio frequency (RF) shielding methods in which the conductive coating material encloses the circuits design and the leakage problem occurs due to the gap in such conductive material, non-contact RF shielding at a distance is very promising but still impossible to achieve so far. In this paper, a multi-folded transformation optics method is proposed to design a non-contact device for RF shielding. This "open-shielded" device can shield any object at a distance from the electromagnetic waves at the operating frequency, while the object is still physically open to the outer space. Based on this, an open-carpet cloak is proposed and the functionality of the open-carpet cloak is demonstrated. Furthermore, we investigate a scheme of non-contact wave guiding to remotely control the propagation of surface waves over any obstacles. The flexibilities of such multi-folded transformation optics method demonstrate the powerfulness of the method in the design of novel remote devices with impressive new functionalities.
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Hamza Ahmad
authors.initials: HA
authors.lastname: Madni
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zheng
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Yihao
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Institute of Marine Electronics Engineering, Zhejiang University, Hangzhou 310058, China.
authors.forename: Huaping
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Xianmin
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Wenyan
authors.initials: W
authors.lastname: Yin
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Erping
authors.initials: E
authors.lastname: Li
authors.affiliation: Department of Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Chen