Open-Ended Substrate Integrated Waveguide-Fed Electric Dipole Antennas and Arrays for 60-GHz Millimeter-Wave Communications

Project: Research

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The 5th generation mobile networks will support multi-gigabit data transmission tomeet the huge growth of mobile data traffic for personal entertainment, investment,education, surveillance, and so on. All the existing mobile communication networks up tothe 4th generation are operated at lower microwave frequency bands which are highlycongested. As much wider bandwidth is required, the unlicensed 60 GHz band is verylikely to be used in future mobile phones, tablets or personal computer for short-rangehigh data rate transmission. In fact, some leading integrated-circuit manufacturers havedeveloped 60 GHz chipsets to support the growth of this new technology. Atmosphericabsorption is very strong at the 60 GHz millimeter-wave band. High power millimeterwave solid-state sources could be used to compensate the serious path loss, but they arecostly and not durable. Alternatively, medium or high gain millimeter wave antennaarrays with beam steering capability are considered as a viable solution of the problem.Many 60 GHz planar antenna arrays with good directional property were developedrecently. These antenna arrays are good in performance, in general, but their radiationbeam cannot be steered electronically. There are two common approaches to developsteerable high-gain antenna arrays. The first approach is to incorporate a phase shifterto each antenna element for adjusting the phase differences between antenna elementselectronically. Since 60 GHz phase shifter is expensive and has high insertion loss, thisapproach is not attractive for consumer product development. The second approach is tocascade a beam-forming network to the antenna array. For a network with N input andN output ports, N radiating beams, pointing to different directions over a range ofangles, can be generated. Beam steering can be realized by adding switches to controlthe on/off states of the independent beams. This is an attractive approach for the 60GHz band as low loss beam-forming networks can be implemented by substrate-integrated-waveguide technology and switches are not expensive compared with phaseshifters. Recently, the principal investigator has developed a low-cost high-performancemillimeter-wave electric dipole element which can be integrated easily with planarbeam-forming networks. With this exciting result, a research on the development ofmulti-beam millimeter-wave antenna arrays of the newly proposed antenna element ishighly desirable.


Project number9042377
Grant typeGRF
Effective start/end date1/01/1724/06/21

    Research areas

  • Antenna , Dipole , SIW , Magneto-electrric dipole , 60 GHz antenna