Wideband Vertically Polarized Antenna with Endfire Radiation for 5G Mobile Phone Applications

Maryam Faizi Khajeim, Gholamreza Moradi*, Reza Sarraf Shirazi, Shuai Zhang, Gert Frølund Pedersen

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

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This letter presents a wideband slotted substrate integrated waveguide (SIW) antenna for millimeter-wave (mm-wave) fifth-generation (5G) mobile handset applications. The antenna is vertically polarized and has a small clearance of 3.3 mm. To realize a wide operating bandwidth, two sets of vias are employed to perform a change in SIW height. Furthermore, a pair of U-shaped slots is used in both top and bottom faces of SIW to improve impedance matching and front-to-back radiation ratio. The antenna achieves a measured -6 dB bandwidth of 35.7% (23.4-33.6 GHz) and a -10 dB bandwidth of 17.4% (26.2-31.2 GHz). The beamforming capability of the antenna array is investigated. The antenna array has good scanning performance and achieves large spatial coverage.

Original languageEnglish
Article number9140323
JournalI E E E Antennas and Wireless Propagation Letters
Issue number11
Pages (from-to)1948-1952
Number of pages5
Publication statusPublished - Nov 2020


  • Endfire radiation
  • handset antenna
  • millimeter-wave (mm-wave)
  • phased array
  • vertical polarization
  • wideband

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