Title :
A design of integrated ultra-wideband/narrow band rectangular dielectric resonator antenna
Author :
Yongfeng Wang ; Denidni, Tayeb A. ; Qingsheng Zeng ; Gao Wei
Author_Institution :
Northwestern Polytech. Univ., Xi´an, China
Abstract :
An ultra-wideband (UWB) rectangular dielectric resonator antenna (DRA) integrated with a narrow-band (NB) DRA is presented. The proposed antenna consists of a UWB rectangular DRA excited by a bevel-shaped patch and a NB DRA excited by a strip. The simulated results demonstrate that the UWB antenna provides a 2:1 voltage standing wave ratio (VSWR) bandwidth for 2.5-12 GHz, integrated with a NB antenna. Moreover, the two ports have the same polarization, and two symmetrical short circuited strips are used to improve the isolation between the two ports. This can be a suitable candidate for applications in cognitive radio, where the UWB antenna can be used for spectrum sensing and the NB antenna for communication operation.
Keywords :
cognitive radio; dielectric resonator antennas; signal detection; ultra wideband antennas; NB DRA; NB antenna; UWB antenna; UWB rectangular DRA; VSWR; bandwidth 2.5 GHz to 12 GHz; bevel-shaped patch; cognitive radio; communication operation; narrow band rectangular dielectric resonator antenna; spectrum sensing; symmetrical short circuited strips; ultrawideband rectangular dielectric resonator antenna; voltage standing wave ratio; Bandwidth; Dielectric resonator antennas; Dielectrics; Mutual coupling; Niobium; Ultra wideband antennas; Ultra-wideband; cognitive radio; dielectric resonator antenna; isolation; polarization;
Conference_Titel :
Wireless Symposium (IWS), 2014 IEEE International
Conference_Location :
X´ian
DOI :
10.1109/IEEE-IWS.2014.6864187
