Title :
Mutual coupling investigation of two wideband dipole antennas on EBG ground plane
Author :
Zhang, Wei ; Hall, Peter S.
Author_Institution :
Sch. of Electron., Electr. & Comput. Eng., Birmingham Univ.
Abstract :
Nowadays, using EBG as antenna ground plane is well known in the antenna community. But most applications are limited to narrowband antennas. A broadband antenna mounted on an EBG structure has been investigated recently in the University of Birmingham. It performs well over 4.8 to 6.8 GHz with return loss lower than -10 dB, gain greater than 6 dB and good radiation pattern. In this paper, this research has been carried on. Two broadband diamond dipole antennas are mounted above the same EBG structure in H-plane and E-plane directions with different distances between them. The variation of mutual coupling (S21) between two dipoles caused by distance change and EBG structure utilization is investigated over 4 to 13 GHz frequency range and mutual coupling comparisons between antennas with and without EBG structure has been performed over 4.8 to 6.8 GHz frequency range.
Keywords :
antenna radiation patterns; broadband antennas; dipole antennas; microwave antennas; photonic band gap; 4 to 13 GHz; 4.8 to 6.8 GHz; E-plane direction; EBG ground plane; H-plane direction; broadband diamond dipole antennas; mutual coupling investigation; narrowband antenna; radiation pattern; wideband dipole antennas; Antenna radiation patterns; Broadband antennas; Dipole antennas; Directive antennas; Frequency; Metamaterials; Mutual coupling; Narrowband; Performance gain; Periodic structures;
Conference_Titel :
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location :
Cambridge
Print_ISBN :
1-4244-1088-6
Electronic_ISBN :
1-4244-1088-6
DOI :
10.1109/IWAT.2007.370075
