Substrate-integrated two-port dual-frequency antenna

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Original languageEnglish
Article number7467451
Pages (from-to)3692-3697
Journal / PublicationIEEE Transactions on Antennas and Propagation
Issue number8
Online published10 May 2016
Publication statusPublished - Aug 2016


A two-port dual-frequency substrate-integrated antenna with a large frequency difference is presented. It consists of a differentially fed slot antenna and a substrate-integrated dielectric resonator antenna for low- and high-frequency radiation, respectively. The former is loaded by a hollow patch, whereas the latter is fabricated inside the hollow region of the patch by using air holes and metalized vias. Beneath the antenna substrate is a second substrate on which slot-coupled sources are printed to feed the two antennas. For demonstration, a two-port dual-frequency antenna working at 5.2-GHz WLAN band and 24-GHz ISM band was designed, fabricated, and measured. The S-parameters, radiation patterns, and antenna gains of the two antenna parts are reported. Reasonable agreement between the measured and simulated results is observed. Very good isolation of over 35 dB between the two antenna parts is observed.

Research Area(s)

  • Dielectric resonator antennas (DRAs), dual-frequency antennas, substrate-integrated antennas