Design of a Single-Layer Circuit Analog Absorber Using Double-Circular-Loop Array via the Equivalent Circuit Model
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JECEI-5-2_010
تاریخ نمایه سازی: 20 آبان 1397
Abstract:
A broadband Circuit Analogue (CA) absorber using double-circular-loop array is investigated in this paper. A simple equivalent circuit model is presented to accurately analyze this CA absorber. The circuit simulation of the proposed model agrees well with full-wave simulations. Optimization based on the equivalent circuit model, is applied to design a single-layer circuit analogue absorber using double-circular-loop array. Simple guidelines for designing the CA absorber are then formulated. It is demonstrated that the fractional bandwidth of 125.7% is realized for at least 10 dB reflectivity reduction with angular stability to 40˚ for both TM and TE modes. The total thickness of the absorber design is 0.093λL at the lowest operating frequency
Keywords:
Frequency selective surfaces (FSS) , Circuit analogue (CA) absorber , Equivalent circuit model (ECM) , Double-circular –loop (DCL) , Angular stability. , ,
Authors
Mojtaba Basravi
Department of Electrical and Computer Engineering Isfahan University of Technology, Isfahan, Iran.
Zaker Hossein Firouzeh
Department of Electrical and Computer Engineering Isfahan University of Technology, Isfahan, Iran.
Mohsen Maddahali
Department of Electrical and Computer Engineering Isfahan University of Technology, Isfahan, Iran.