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Related Experiment Video

Updated: Jun 10, 2026

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

Distributed external cloak without embedded antiobjects.

Tiancheng Han¹, Cheng-Wei Qiu, Xiaohong Tang

¹EHF Key Laboratory of Fundamental Science, School of Electronic Engineering,University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China.

|August 4, 2010

Summary

This summary is machine-generated.

We introduce a novel distributed external cloak that conceals arbitrary objects without needing antiobjects or cloaked materials. This flexible cloak features tunable windows and can hide objects larger than its inner boundary.

Related Experiment Videos

Last Updated: Jun 10, 2026

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band

Published on: May 2, 2018

Area of Science:

Metamaterial cloaking
Acoustic and electromagnetic wave manipulation

Background:

Traditional cloaking methods often rely on specific materials or embedded antiobjects.
Existing cloaks may have limitations in accommodating objects of varying shapes or sizes.

Purpose of the Study:

To propose a new type of distributed external cloak.
To overcome limitations of previous cloaking techniques regarding object adaptability and material dependence.

Main Methods:

Designing a cloak composed of closed and standalone systems with independently controllable parameters.
Utilizing tunable windows and a cloaking area.
Positioning the object externally to the cloak.

Main Results:

The proposed cloak does not require cloaked material or antiobjects.
It allows for separate control of system positions and parameters.
The cloak can conceal arbitrary objects of varying shapes, potentially exceeding the inner boundary of a perfect closed cloak.
Multiple open windows can be maintained without blinding the object.

Conclusions:

This distributed external cloak offers a flexible and adaptable solution for object concealment.
It represents a significant advancement by eliminating the need for specialized materials and antiobjects.
The design enables cloaking of diverse objects, enhancing practical applications in wave manipulation.