Study of an extremely wideband monopole antenna with triple band-notched charac-teristics

J. Liu*, K. P. Esselle, S. G. Hay, S. S. Zhong

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    53 Citations (Scopus)


    Three notched bands are generated, at selected frequen- cies, in an extremely wideband base antenna to support multiple com- munication systems while avoiding inference from other existing nar- rowband systems. The design of a fully printed extremely wideband antenna and creating triple band-notched functions are addressed in this paper. Measurements demonstrate that the proposed printed base antenna has an extremely wide 2: 1 VSWR bandwidth from 0.72 GHz, to 25 GHz with a ratio bandwidth of 34: 1. The antenna has a simple structure and can be fabricated at low cost for multi-band and wide- band wireless communication devices. Besides, this paper presents a technique to form three notched bands within the operating frequency range of the base antenna. By introducing a half-wavelength U-shaped defected ground structure (DGS) and a pair of quarter-wavelength open arc-shaped slots to the radiating patch, three notched bands are created to prevent interference from WLAN (2.4-2.484 GHz and 5.15- 5.85 GHz) systems and downlinks of X-band satellite communication (7.25-7.75 GHz) systems.

    Original languageEnglish
    Pages (from-to)143-158
    Number of pages16
    JournalProgress in Electromagnetics Research
    Publication statusPublished - 2012


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