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.
This paper presents a low‐profile wideband pattern reconfigurable dual circular patch antenna. The basic unit of the antenna is based on the mathematical model of a circular patch antenna design. Although to optimize the large size of the structure, an innovative way of introducing slots is presented that effectively reduces the overall size. Two different types of slotted circular structures are...
This paper presents a multichannel wideband hyperthermia treatment (HT) system, with focus on investigating the behavior of the wideband power amplifier (PA) module. Analysis is conducted using small signal, large signal, as well as two-tone characterization of the PA. The impact of nonlinearity of the PA is investigated. In particular, the study includes the effect of inter-modulation products (IMPs)...
The paper presents a new compact reconfigurable bandstop filter using Defected Ground Structure (DGS). The proposed reconfigurable bandstop filter is constructed by employing coupled DGS resonators etched in the ground plane. The bandstop filter consists of symmetrical DGS resonators with a microstrip excitation to obtain a bandstop filter response. The reconfigurability is achieved by short circuiting...
New triple band fractal-like antennas are proposed in this paper. The proposed antennas are built on a partial ground plane and fed through a microstrip feed line. The design is based on the self similarity property of fractal geometries. The design procedures are straightforward and can be applied to design an arbitrary triple band antenna at different operating bands using simple analytical relations...
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.