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Antenna Array for a 24-GHz Automotive Radar with Dipole Antenna Element Patches

Wernehag, Johan LU and Sjöland, Henrik LU (2006) International Symposium on Antennas and Propagation In Proceedings of International Symposium on Antennas and Propagation ISAP
Abstract
In this paper 3D electromagnetic simulations of an antenna array have been performed. The array is intended for automotive radar applications at 24 GHz. It is constructed from dipole antenna element patches, which are fed in the center by a differential signal. The dipole antenna element patches are simulated assuming a standard off the shelf substrate. They have a standing wave ratio less than 3 from 22.5 GHz to 24.5 GHz, when matched to 60Ohm. The directivity of the dipole patch is 9 dBi. The array consists of 24 elements giving it a physical size of 150 mm, with a groundplane of 200×100 mm2. An antenna of that size is easy to integrate in a car. Beam steering can be accomplished by changing the phases of the signals to the different... (More)
In this paper 3D electromagnetic simulations of an antenna array have been performed. The array is intended for automotive radar applications at 24 GHz. It is constructed from dipole antenna element patches, which are fed in the center by a differential signal. The dipole antenna element patches are simulated assuming a standard off the shelf substrate. They have a standing wave ratio less than 3 from 22.5 GHz to 24.5 GHz, when matched to 60Ohm. The directivity of the dipole patch is 9 dBi. The array consists of 24 elements giving it a physical size of 150 mm, with a groundplane of 200×100 mm2. An antenna of that size is easy to integrate in a car. Beam steering can be accomplished by changing the phases of the signals to the different elements [1], thus making the arrangement mechanically robust since the antenna does not have to move. The directivity for the antenna array is larger than 9.4 dBi for a steering angle of ±7◦ and the half power beam width is smaller than 6◦ over the same steering angle. (Less)
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Proceedings of International Symposium on Antennas and Propagation ISAP
pages
4 pages
conference name
International Symposium on Antennas and Propagation
language
English
LU publication?
yes
id
9f73ac50-6fb7-412c-bf24-fdf3b1222c8c (old id 603146)
date added to LUP
2007-12-12 12:29:02
date last changed
2016-04-16 12:43:47
@inproceedings{9f73ac50-6fb7-412c-bf24-fdf3b1222c8c,
  abstract     = {In this paper 3D electromagnetic simulations of an antenna array have been performed. The array is intended for automotive radar applications at 24 GHz. It is constructed from dipole antenna element patches, which are fed in the center by a differential signal. The dipole antenna element patches are simulated assuming a standard off the shelf substrate. They have a standing wave ratio less than 3 from 22.5 GHz to 24.5 GHz, when matched to 60Ohm. The directivity of the dipole patch is 9 dBi. The array consists of 24 elements giving it a physical size of 150 mm, with a groundplane of 200×100 mm2. An antenna of that size is easy to integrate in a car. Beam steering can be accomplished by changing the phases of the signals to the different elements [1], thus making the arrangement mechanically robust since the antenna does not have to move. The directivity for the antenna array is larger than 9.4 dBi for a steering angle of ±7◦ and the half power beam width is smaller than 6◦ over the same steering angle.},
  author       = {Wernehag, Johan and Sjöland, Henrik},
  booktitle    = {Proceedings of International Symposium on Antennas and Propagation ISAP},
  language     = {eng},
  pages        = {4},
  title        = {Antenna Array for a 24-GHz Automotive Radar with Dipole Antenna Element Patches},
  year         = {2006},
}