title: Design of UWB monopole antenna with dual notched bands using one modified electromagnetic-bandgap structure.
abstract: A modified electromagnetic-bandgap (M-EBG) structure and its application to planar monopole ultra-wideband (UWB) antenna are presented. The proposed M-EBG which comprises two strip patch and an edge-located via can perform dual notched bands. By properly designing and placing strip patch near the feedline, the proposed M-EBG not only possesses a simple structure and compact size but also exhibits good band rejection. Moreover, it is easy to tune the dual notched bands by altering the dimensions of the M-EBG. A demonstration antenna with dual band-notched characteristics is designed and fabricated to validate the proposed method. The results show that the proposed antenna can satisfy the requirements of VSWR < 2 over UWB 3.1-10.6 GHz, except for the rejected bands of the world interoperability for microwave access (WiMAX) and the wireless local area network (WLAN) at 3.5 GHz and 5.5 GHz, respectively.
authors.affiliation: Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Sichuan 611731, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.forename: Ziqiang
authors.initials: Z
authors.lastname: Xu
mesh_terms: D003142:Communication; D004574:Electromagnetic Fields; D004867:Equipment Design; D008872:Microwaves