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Split aperture decoupling method applied to multi-beam pillbox antennas for large coverage, high crossover and low side lobe levels

Abstract : The 'Split aperture decoupling' method is applied for the first time to the multi-beam pillbox antenna. This method allows simultaneously a large angular coverage, high crossing level and low side lobes levels (SLLs) for a lossless multi-beam antenna system. To validate the proposed concept a SIW (Substrate Integrated Waveguide) pillbox antenna with two radiating apertures was designed at 24.15 GHz and fabricated with a standard PCB fabrication process. The measured results of the realized prototype are in good agreement with the simulated ones. The antenna has very good scanning performance with a large angular coverage of ± 40 high crossing level between the beams around -3dB and SLLs lower than -11dB over the whole scanning range. The fractional bandwidth for VSWR <2 (S11 <-10dB) is 2.5%. The gain of the center beam is 24.2dBi with a radiation efficiency of 54%. © 2016 IEEE.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01416325
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, December 14, 2016 - 1:12:06 PM
Last modification on : Tuesday, October 6, 2020 - 3:09:48 AM

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K. Tekkouk, M. Ettorre, R. Sauleau. Split aperture decoupling method applied to multi-beam pillbox antennas for large coverage, high crossover and low side lobe levels. 2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016, Jun 2016, Puerto Rico, United States. pp.1705--1706, ⟨10.1109/APS.2016.7696559⟩. ⟨hal-01416325⟩

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