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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.19 No.2
- 발행연도
- 2019.4
- 수록면
- 71 - 81 (11page)
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This paper presents a design methodology for wideband single-layered microwave absorbers with arbitrary absorption at the design center frequency using reactive Salisbury screens. The bandwidth of the absorber increases when the flatness of the reflection response at the design center frequency is maximized. Based on this observation, closed-form design formulas for wideband absorbers are derived. As they are scalable to any design frequency, wideband reactive screens can be systematically realized using two-dimensional periodic crossed-dipole structures patterned on a resistive sheet. Based on this method, a single-layered absorber with a 90% bandwidth improved to 124% of the design center frequency is presented. For the purpose of physical demonstration, an absorber with a design center frequency of 10 ㎓ is designed and fabricated using a silver nanowire resistive film with a surface resistance of 30 Ω/square. The measured absorption shows a good agreement with both the calculation and the electromagnetic simulation.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. THEORY BASED ON AN EQUIVALENT CIRCUIT
Ⅲ. CROSSED-DIPOLE STRUCTURE TO SYNTHESIZE THE CIRCUIT PARAMETERS
Ⅳ. FABRICATION AND MEASUREMENT
Ⅴ. CONCLUSION
REFERENCES
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