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A Study on the Design of EM Wave Absorptive Structure and Its Application for WCDMA Band
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- Authors
- Dong-Uk Sim, Jong-Myun Kim, Young-Jun Chong, Seong-Ook Park
- Issue Date
- 2013-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2013, pp.879-880
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, a new approach to implement a compact fully anechoic chamber using an absorbing structure based on a periodic structure is proposed. A simple electromagnetic wave absorber based on a periodic structure to substitute a pyramidal absorber in a conventional compact anechoic chamber is proposed and the results of applying it are demonstrated. The proposed absorbing structure shows a broadband reflectivity response with a fractional bandwidth of approximately 91% below -10 dB. As a result, the measured results show that the reflection loss in a compact fully anechoic chamber consisting of the proposed absorber is fairly uniform and it is definitely lower than in the shielded room without the absorber. Also, radiation characteristics of a dipole antenna measured in the chamber reveal that those are closed to the conventional results. This compact anechoic chamber can be utilized as a measurement facility for measuring the characteristics of WCDMA antennas. © 2013 IEEE.
- KSP Keywords
- Anechoic Chamber, Dipole antenna, EM wave, Electromagnetic wave absorber, Fractional Bandwidth(FBW), New approach, Radiation characteristics, Reflection Loss, Shielded room, periodic structure, pyramidal absorber