Odd numbered elements double slot array antenna with simplified 90 degree step phase shifter implementation

Shuuzou Kato, Yuya Osumi, Yosuke Sato, Hirokazu Sawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In order to solve the complexity issue of the beam-forming antenna phase shifters (90 degree step) that is a key technology of multi-Gbps transmission in 60 GHz band, this paper proposes odd numbered element double slot array antennas. The proposed antenna is designed as symmetry against the center element and thus, the number of effective phase combination patterns is reduced to about one-half of conventional ones. Moreover, in practical implementations, the proposed antenna needs much less adjustment of the each element antenna phase due to its symmetry. To evaluate this concept, heuristic computer simulations have been carried out to find the phase combinations and got very simple two phase combinations on top of the no-phase control center element for five element double slot array antenna. To validate the computer simulations, a five element double slot antennas was fabricated and the measured performance has shown a good agreement with the computer simulations providing an antenna gain of 10 dBi and a steering coverage of +/- 36 degrees. Although the evaluation has been done with five element antennas, this concept and advantage could be extended to general odd-numbered slot antennas.

Original languageEnglish
Title of host publication2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings
Number of pages3
Publication statusPublished - 2012 Dec 1
Event2012 Asia-Pacific Microwave Conference, APMC 2012 - Kaohsiung, Taiwan, Province of China
Duration: 2012 Dec 42012 Dec 7

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Other2012 Asia-Pacific Microwave Conference, APMC 2012
Country/TerritoryTaiwan, Province of China


  • Beam-forming
  • Indoor communication
  • Millimeter-wave
  • Phased array antenna

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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