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Compact Beam-Scanning Flat Array Based on Substrate-Integrated Waveguide.
- Source :
-
IEEE Transactions on Antennas & Propagation . Feb2020, Vol. 68 Issue 2, p882-890. 9p. - Publication Year :
- 2020
-
Abstract
- A compact beam-scanning flat antenna array with high gain based on the substrate- integrated waveguide (SIW) is presented in this article. The radiation elements are the continuous transverse stub (CTS) constructed by SIW, which are arrayed on the substrate. The SIW-CTS array has a 4 dB higher gain than the traditional CTS array with the metal parallel plate waveguide and the theoretical explanation is analyzed. A new compact corporate-feed network consisting of an SIW-horn and a flat lens is also proposed. The flat lens could convert the cylindrical wavefront generated by the feed probe and the SIW-horn to a planar wavefront for feeding the CTS array. The Taylor distribution of the feed level made the array has a low sidelobe and high gain. The beam scanning of the array could be realized by simply moving the small SIW-horn along the line across the focal point. An eight-element array is designed, simulated, and fabricated to verify the design. The measured results show that the scanning range is from −35° to 35° with the highest gain of being 20.6 dBi and the sidelobe level of −25.2 dB at the broadside. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SUBSTRATE integrated waveguides
*ANTENNA arrays
*PLATING
Subjects
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 68
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 141533473
- Full Text :
- https://doi.org/10.1109/TAP.2019.2943441