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.
Aiming to realise an end-on-fire antenna with band rejection for ultra-wideband (UWB) system, a planar quasi-Yagi antenna with dual-dipole structure is proposed. The antenna comprises of a coupling transition structure, two stripes and a dual-dipole connected by a coplanar stripline. The compact arrangement of the dual-dipole generates reverse currents at some specific frequency points on their edges,...
A broadband frequency reconfigurable antenna used in UWB system is designed. Bow-tie-shaped patch is used as the radiating structure. Frequency reconfigurable performance is achieved by turning on or turning off the PIN diodes. The proposed antenna has two tuning states with wide frequency bandwidth. The lower and upper operating frequency band are 3.16–4.38GHz and 4.25–6.65GHz, respectively. The...
In this paper, a four port disk shaped compact multiple input multiple output (MIMO) patch antenna for vehicular application is proposed and fabricated. The structure is composed of a circle patch with cross slot combined to an annular ring patch. The structure is analyzed by using Theory of Characteristic Modes (TCM). The inner and outer part of the antenna operated at its TM11 and TM21 modes respectively...
Aiming to realize an end-on-fire antenna with band rejection for UWB system, this paper proposes a planar quasi Yagi antenna with dual-dipole structure. The antenna uses a dual-dipole to generate reverse surface currents at some specific frequency points. This mechanism is used to design band rejection. Simulated and measured results show that the bandwidth of the proposed antenna is from 3.37 GHz...
This paper presents a planar printed quasi-Yagi antenna. The proposed antenna consists of a microstrip line slotline transition structure, a driver dipole and two parasitic stripes. The driver dipole is connected to the slotline through coplanar stripline (CPS) which is designed by using a pair of exponential curves and a circular groove end, just the Vivaldi antenna structure, so as to achieve a...
In this paper, a beam-tilted array used as the reader antenna of ultra-wideband (UWB) location systems is proposed. Bow-tie antenna is adopted as element in the array to achieve a wideband performance. Feeding structure of coaxial line is employed to realize beam tilt angle. Good simulation and measurement results are presented. The antenna achieves a wide impedance bandwidth of 36.8% (3.1∼4.5GHz)...
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.