2 x 2 Microstrip Patch Antenna Array Fed by Substrate Integrated Waveguide for Radar Applications

Tomas Mikulasek, Apostolos Georgiadis, Ana Collado, Jaroslav Lacik

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


A 2 x 2 microstrip patch antenna array fed by a substrate integrated waveguide (SIW) feeding network for 24-GHz radar applications is proposed in this letter. Themicrostrip patches are aperture-coupled with the feeding network consisting of a perpendicular coax-to-SIW transition and two Y-junction power dividers. The antenna design is performed in the full-wave electromagnetic solver ANSYS HFSS and verified by measurement. At the operation frequency 24 GHz, a fabricated prototype has a gain of 11.1 dBi and a low sidelobe level below -22 dB in the E-plane and -33 dB in the H-plane.

Original languageEnglish
Pages (from-to)1287-1290
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Publication statusPublished - 2013


  • Antenna array
  • microstrip patch
  • power divider
  • slot
  • substrate integrated waveguide (SIW)

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