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In this paper, a new and compact rectenna is proposed for the application of ISM band at 2.45 GHz using open complementary split ring resonator (OCSRR). The simulated rectifying efficiency and DC voltage were, respectively 57% and 0.9 V when the input power to the rectifying circuit was 0dBm (1mW). The highest efficiency, 62%, was achieved at 2.45 GHz for 3dBm input power and for a charge load 1kΩ.
In this paper, we present a new inspired metamaterial rectenna which is designed in the microstrip line structure at 5.8 GHz for the wireless transmission of microwave power. The proposed rectenna achieves RF-to-DC conversion efficiency of 52% and a DC voltage of 0.8 V when the received RF power is 1 mW at 5.8 GHz. The feasibility of this concept is presented through full-wave simulations. These simulations...
in this paper, a new broadband RFID tag antenna is presented. The antenna has a simple structure and low profile with only one layer of FR4 dielectric substrate and metallization. By choosing a proper dimension of the short dipole and the T-matching network, a good and broadband impedance matching can be achieved. The obtained impedance bandwidth (S11<−10 dB) across the operating band can reach...
In this paper, a new meander line UHF RFID tag antenna loaded with split ring resonator is presented. The antenna has a simple structure and low profile with only one layer of FR4 dielectric substrate and metallization. To achieve a good and impedance matching, the antenna has been loaded with a metamaterial structure (SRR). The obtained impedance bandwidth covers the American band (900–928 MHz)....
In this paper a new UWB antipodal Vivaldi antenna for breast cancer detection is presented. It is found that by inserting exponential slots into both patches of the antipodal Vivaldi antenna a good matching can be achieved , specially for the lower bandwidth limit , without degradation of the other performances of the proposed antenna. The characteristics of this antenna have been studied numerically...
In this paper, A Compact modified S-Shaped RFID Tag antenna for metallic applications is presented to handle the US Band. To miniaturize the antenna to a size of 49×21×1.58 mm3 and to provide a good conjugate matching between the S-shaped antenna and the ship, the technique of adding asymmetrical triangular stubs on both side of the tag chip which are electrically connected through vias to the ground...
In this paper, a new modified T-shaped antenna for RFID -UHF tag application is presented. To achieve a good conjugate matching between the tag chip and the antenna, the technique of adding four half-circle shaped patches at the both ends of each T monopoles was applied. The measured maximum read range in free space is 7.5. By adding foam substrate of thickness 3 mm between the tag antenna and the...
In this paper, a new modified S-shaped antenna for RFID -UHF tag application is presented. To provide a good conjugate matching between the S-shaped tag antenna and the ship, the technique of adding asymmetrical triangular stubs on both side of the tag chip was applied. The proposed tag antenna operating in the 915MHz RFID band proposed here has dimensions of only 51×43 mm2 and the operating bandwidth...
In this work, a novel design of compact dual-band antenna based on the use of split ring resonator (SRR) is presented. The first resonant frequency can be attributed to the excitation of the second microstrip line which acts a monopole antenna; however the second frequency resonance is originated from the excitation of the SRR resonator embedded on the top layer. Excitation of the SRR element is performed...
A new planar circular monopole antenna for ultra wideband (UWB) applications is presented. To achieve UWB characteristics, the proposed antenna is constructed by embedding the slot on the partial ground plane. The proposed antenna has been successfully simulated and measured. Experimental results indicate that the proposed antenna yields an impedance bandwidth of 2.3 up to 13 GHz with VSWR < 2,...
In this paper, a novel configuration for a compact planar antenna based on the use of Split Ring Resonators (SRR) is proposed. Excitation of the SRR element is performed by adequately placing the access microstrip lines with respect to the confinement plane of the split rings. Full wave simulation results have been compared with measured values, showing good agreement. The final result is a low cost...
A compact rectangular dielectric resonator antenna (DRA) is presented for ultra wide band communication systems. Ansoft HFSS 3-D electromagnetic solver is used for the design optimization. The proposed antenna has a low profile (~3), a small size and a low permittivity constant (10.2). An impedance bandwidth about 46% (from 6.9 to 11 GHz) was achieved making this antenna suitable for DS-UWB high band...
In this paper, we study wave propagation in stacked SRR/CSRR metasurfaces at microwave frequencies. Computation of the dispersion diagram of both metasurfaces highlights the possibility to obtain forward and backward waves, respectively. The backward waves can be achieved only at the quasi-static resonance in case of stacked CSRRs metasurfaces and provided the longitudinal lattice is small enough...
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