94-GHz Compact 2-D Multibeam LTCC Antenna Based on Multifolded SIW Beam-Forming Network

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wanchen Yang
  • Yayang Yang
  • Wenquan Che
  • Chong Fan
  • Quan Xue

Detail(s)

Original languageEnglish
Article number7936524
Pages (from-to)4328-4333
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume65
Issue number8
Online published31 May 2017
Publication statusPublished - Aug 2017

Abstract

This communication presents a compact 94-GHz 2-D multibeam antenna using the low-temperature co-fired ceramic (LTCC) technology. A good 2-D substrate integrated waveguide (SIW) beamforming network (BFN) for eight beams is proposed, where four-phase shifters are properly introduced to increase the flexibility of the beams. Benefiting from multilayer LTCC, the BFN is compactly implemented in a completely symmetrical structure by using two multifolded SIW Butler matrixes with 50% reduction of the longitudinal size, and four couplers placed on different layers with interlaced signal routes to avoid overlaps or crossovers. Combined with a 2 × 4 SIW slot antenna array, the multibeam antenna can realize eight symmetric scanning beams on 2-D with stable gains for a wide coverage. For demonstration, the two single-port antennas with different pitch-angle beams are fabricated and measured, and good agreements with the expectations are observed. The differences of the beam orientations are less than 5°, while the measured peak gains of the beams are about 8.5 dBi.

Research Area(s)

  • 2-D scanning, beam-forming network (BFN), lowerature co-fired ceramic (LTCC), multibeam antenna, substrate integrated waveguide (SIW)

Citation Format(s)

94-GHz Compact 2-D Multibeam LTCC Antenna Based on Multifolded SIW Beam-Forming Network. / Yang, Wanchen; Yang, Yayang; Che, Wenquan et al.

In: IEEE Transactions on Antennas and Propagation, Vol. 65, No. 8, 7936524, 08.2017, p. 4328-4333.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review