The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A dual-frequency and dual-polarization antenna design is proposed for long term evolution (LTE) applications. The proposed antenna achieves an impedance bandwidth of 45% (658–1070 MHz) at the low-frequency band and 52% (1.643–2.8 GHz) at the high-frequency band with more than 6 dBi gain covering the most of the LTE bands. Mutually orthogonal polarizations are also achieved through the proper placement...
In this paper, an aperture-coupled patch array for Microwave RFID handheld reader is presented. The proposed antenna is composed of feeding network, ground with coupling apertures, and two patch elements. Patch antennas possess advantages of high directivity and well front-to-back ratio. To further improve the antenna gain and constrain the vertical radiation side lobe while preserving the compactness...
A novel design of a dipole antenna with ultrawideband characteristics is presented, which uses an additional shorter dipole as a matching element whose imaginary part (or susceptance) of input admittance compensates for that of the principal dipole in the frequency band of operation. Since both dipole elements efficiently radiate energy, the proposed twin-dipole antenna exhibits a higher efficiency...
Novel antenna structure consisting of two mutually orthogonal dipole antennas of different frequencies is proposed in this paper. With proper choice of the lengths of the two corresponding dipoles, the antenna was proven to cover a frequency band of operation from 1.6GHz to 7.7GHz, corresponding to 131% bandwidth. Moreover, the measured total efficiency was better than 75% across the band with reasonable...
In this paper, a novel and simple dual-band planar omni-directional antenna is proposed. Through proper adjustment of the couplings between the two coupling arms and the main dipole-based radiating section, the proposed antenna can operate either in the wideband mode or dual-band mode. Operated in the dual-band mode, the proposed antenna is able to cover both 3.25~3.85 GHz and 5.25~5.85 GHz for WiMAX...
In this paper, performance degradation of RFID system due to curving in tag antenna is investigated through radar cross section (RCS) analysis. While the limitation in the read range of passive RFID system is mainly dominated by the received RF power from reader on the tag side, RCS analysis of tag antenna provides a direct and effective way for the evaluation of overall system performance. For simplicity...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.