%0 Journal Article
%T Design of a Single-Layer Circuit Analog Absorber Using Double-Circular-Loop Array via the Equivalent Circuit Model
%J Journal of Electrical and Computer Engineering Innovations (JECEI)
%I Shahid Rajaee Teacher Training University
%Z 2322-3952
%A Basravi, M
%A Firouzeh, Z.H.
%A Maddahali, M
%D 2017
%\ 10/01/2017
%V 5
%N 2
%P 171-178
%! Design of a Single-Layer Circuit Analog Absorber Using Double-Circular-Loop Array via the Equivalent Circuit Model
%K Frequency selective surfaces (FSS)
%K Circuit analogue (CA) absorber
%K Equivalent circuit model (ECM)
%K Double-circular –loop (DCL)
%K Angular stability
%R 10.22061/jecei.2018.790
%X 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 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.
%U http://jecei.sru.ac.ir/article_790_b8ba397072a572941d78b9700d9fbf45.pdf