Design and analysis of a compact quad band loaded monopole antenna with independent resonators

Mahmoud A. Abdalla, Zhirun Hu

    Research output: Contribution to journalArticlepeer-review


    A quad band antenna with good gain and omni-directional pattern is proposed in this paper. The antenna design is based on loading a conventional monopole antenna by three different resonators. The resonators are inspired from the shunt branch of composite right-/left-handed cell. The resonators have a simple structure and compact size. The control of the frequency bands can be achieved arbitrarily and hence the suggested design methodology can be generalized to any required bands. The fabricated antenna prototype is operating at 2.6, 3.35, 5.15, and 6.1 GHz with bandwidth wider than 100 MHz for each band. The antenna's operating principle and design procedures with the aid of electromagnetic full wave simulation are presented. Finally, the experimental results exhibit good agreement with the simulated ones which confirm the proposed designed methodology. The proposed monopole antenna has a patch size of 13.5 mm × 6.5 mm and the whole antenna size (including the feed line) is 35 mm × 32 mm. Compared to conventional single-band microstrip patch radiator size, the proposed quad band radiator has the size of 9, 15, 37.5, and 72.5% at relevant frequency bands.

    Original languageEnglish
    Pages (from-to)1-8
    Number of pages8
    JournalInternational Journal of Microwave and Wireless Technologies
    Early online date14 Jan 2018
    Publication statusPublished - 2018


    • Monopole antenna
    • Multiband antenna
    • Omni-directional antenna

    Research Beacons, Institutes and Platforms

    • National Graphene Institute


    Dive into the research topics of 'Design and analysis of a compact quad band loaded monopole antenna with independent resonators'. Together they form a unique fingerprint.

    Cite this