ANTENNA DEVICE

WIPO Patent Application WO/2023/157715

A1

An antenna device (1) comprises: a tubular conductor (2); and a planar conductor (3) that is disposed at at least one end of the tubular conductor (2) in an axial direction thereof and that extends in a cross direction intersecting the axial direction. Furthermore, the tubular conductor (2) comprises, at the one end in the axial direction, a notch (21) that is formed in a section along the outer periphery of the tubular conductor (2) and that constitutes a gap (4) between said section and the planar conductor (3); and a feeding part (22) that feeds power to the gap (4). 　The antenna device (1) further comprises: a tubular conductor (2); and a planar conductor (3A) that is disposed at at least one end of the tubular conductor (2) in an axial direction thereof and that extends in a cross direction intersecting the axial direction. Furthermore, the tubular conductor (2) comprises a slot (7) that is formed in a section along the circumferential direction of the tubular conductor (2); and a feeding part (22) that feeds power to the slot (7). The antenna device (1) further comprises: a non-feeding conductor (6) located in an inner region of the tubular conductor (2) as viewed from the axial direction.

OKANO TETSURO (JP)
KAWAI KENJI (JP)
YAMASHITA KAKERU (JP)
OGINO KAZUSHIGE (JP)

PCT/JP2023/003945

August 24, 2023

February 07, 2023

Click for automatic bibliography generation  

DENSO TEN LTD (JP)

H01Q13/16; H01Q5/307; H01Q5/378; H01Q13/10; H01Q13/18; H01Q21/24; H01Q21/30; H01Q25/00

JP2021192478A	2021-12-16
JPH0832345A	1996-02-02
JP2004140448A	2004-05-13

SANO PATENT OFFICE (JP)

View/Download PDF      PDF Help

Previous Patent: CEMENT ADMIXTURE, CEMENT COMPOSITION, AND CEMENT CONCRETE

Next Patent: HEAT PUMP CYCLE DEVICE