A composite patch array antenna with built-in polarizer has been developed to reduce road clutter noise by 20 dB for 76 GHz automotive radars. A polarizer is placed in front of Tx and Rx patch arrays within their reactive near-field region to suppress cross-polarized sidelobe radiation from their feeding lines while maintaining a low-profile characteristic with 4 mm thickness. Additional metal-lined absorbers within the composite antenna structure, while terminating cross-polarized waves undesirably excited by the patch arrays, also serve as miniature clutter plates to further reduce sidelobes toward the road surface. The resultant composite antenna achieved sidelobe levels of -45 dB, a 20 dB improvement over standard patch arrays, at elevation angles close to 90
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Hiroshi SHINODA, Hiroshi KONDOH, "Composite Patch Array Antenna with Built-In Polarizer and Its Road Clutter Reduction Effect for 76 GHz Automotive Radars" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 11, pp. 1401-1405, November 2009, doi: 10.1587/transele.E92.C.1401.
Abstract: A composite patch array antenna with built-in polarizer has been developed to reduce road clutter noise by 20 dB for 76 GHz automotive radars. A polarizer is placed in front of Tx and Rx patch arrays within their reactive near-field region to suppress cross-polarized sidelobe radiation from their feeding lines while maintaining a low-profile characteristic with 4 mm thickness. Additional metal-lined absorbers within the composite antenna structure, while terminating cross-polarized waves undesirably excited by the patch arrays, also serve as miniature clutter plates to further reduce sidelobes toward the road surface. The resultant composite antenna achieved sidelobe levels of -45 dB, a 20 dB improvement over standard patch arrays, at elevation angles close to 90
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1401/_p
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@ARTICLE{e92-c_11_1401,
author={Hiroshi SHINODA, Hiroshi KONDOH, },
journal={IEICE TRANSACTIONS on Electronics},
title={Composite Patch Array Antenna with Built-In Polarizer and Its Road Clutter Reduction Effect for 76 GHz Automotive Radars},
year={2009},
volume={E92-C},
number={11},
pages={1401-1405},
abstract={A composite patch array antenna with built-in polarizer has been developed to reduce road clutter noise by 20 dB for 76 GHz automotive radars. A polarizer is placed in front of Tx and Rx patch arrays within their reactive near-field region to suppress cross-polarized sidelobe radiation from their feeding lines while maintaining a low-profile characteristic with 4 mm thickness. Additional metal-lined absorbers within the composite antenna structure, while terminating cross-polarized waves undesirably excited by the patch arrays, also serve as miniature clutter plates to further reduce sidelobes toward the road surface. The resultant composite antenna achieved sidelobe levels of -45 dB, a 20 dB improvement over standard patch arrays, at elevation angles close to 90
keywords={},
doi={10.1587/transele.E92.C.1401},
ISSN={1745-1353},
month={November},}
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TY - JOUR
TI - Composite Patch Array Antenna with Built-In Polarizer and Its Road Clutter Reduction Effect for 76 GHz Automotive Radars
T2 - IEICE TRANSACTIONS on Electronics
SP - 1401
EP - 1405
AU - Hiroshi SHINODA
AU - Hiroshi KONDOH
PY - 2009
DO - 10.1587/transele.E92.C.1401
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2009
AB - A composite patch array antenna with built-in polarizer has been developed to reduce road clutter noise by 20 dB for 76 GHz automotive radars. A polarizer is placed in front of Tx and Rx patch arrays within their reactive near-field region to suppress cross-polarized sidelobe radiation from their feeding lines while maintaining a low-profile characteristic with 4 mm thickness. Additional metal-lined absorbers within the composite antenna structure, while terminating cross-polarized waves undesirably excited by the patch arrays, also serve as miniature clutter plates to further reduce sidelobes toward the road surface. The resultant composite antenna achieved sidelobe levels of -45 dB, a 20 dB improvement over standard patch arrays, at elevation angles close to 90
ER -