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To address the problem of metallic interferences in vehicular RFID (Radio-frequency identification) applications, this paper proposes a novel alumina ceramic slot tag antenna (ACSTA). The proposed antenna consists of a grounded thin alumina ceramic substrate and a slotted top layer rectangular patch with all four shorting edges. This structure can be equivalent to a horizontal magnetic current flow...
A novel three-dimensional (3-D) folded slot antenna is presented in this paper. By bending the planar slot antenna into a U-shaped slot antenna, quasi-isotropic radiation pattern is achieved in the full space. The volume of the proposed antenna is 11×22×22 mm3. Comparison between the planar and the folded antennas is discussed in detail. Simulated results show that the −10 dB impedance bandwidth of...
A novel planar and electrically small (0.1×0.1×0.002λ3) RFID tag antenna is proposed whose radiation pattern is near-3D omnidirectional. The proposed antenna is comprised of a small loop and an open-loop element with an inverted Z-shaped slot on it. The inverted Z-shaped slot is used to make the antenna smaller and improve the radiation performance. The proposed antenna is easy to change its shape...
A comb-shaped slot RFID tag antenna has been studied in this paper. The antenna has been investigated numerically and validated experimentally. The parametric studies have been conducted to investigate the effect of the geometrical parameters on the input impedance of the antenna. It has been found the length and width of the comb teeth shows significant effect on the input impedance of the antenna...
A meandered slot antenna is proposed without matching network. For size reduction, the meander-line configuration combined with slot dipole antenna was applied in tag antenna. Also, effects of the conductor area on the performance of the antenna are investigated for tag impedance matching. The proposed design is verified by simulation and measurement which show good agreement. The measured bandwidth...
Worm propagation model is an important issue in network information security. Based on the knowledge of infectious disease dynamics, the major methods to research worm propagation are related to some characteristics of network, such as topology, traffic, user behavior. In 2008, with the transformation of key antivirus work from the terminal PC to network server group, the industry put forward a novel...
New design of a dipole antenna with H-shaped slot at two operating bands for Radio Frequency Identification (RFID) is presented. By using an H-shaped slot over a rectangular patch at the middle associated with four T-shaped slot, the proposed antenna has a wide and dual measured return loss bandwidth. Besides, the omnidirectional radiation pattern of the antenna cover the entire frequency range including...
In this paper a planar dual band slot-type binocular tag antenna operating at the frequencies of 868MHz and 2.45GHz is presented. The particular geometry resulting from the design has suggested the name of binocular antenna. This shape allows to obtain a good conjugate match to the input impedance of a chip operating at both frequency bands. The proposed antenna is also mechanically robust against...
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