公开(公告)号：AU1620797A

公开(公告)日：1997-09-18

申请号：AU1620797

申请日：1997-03-11

Applicant: NEC CORP

Inventor： KURAMOTO AKIO ,  TANABE KOSUKE

IPC: H01Q13/08 ,  B29C65/60 ,  H01Q1/40 ,  H01Q9/04 ,  H01Q9/06 ,  H01Q1/42

公开(公告)号：CA2139198A1

公开(公告)日：1995-06-29

申请号：CA2139198

申请日：1994-12-28

Applicant: NEC CORP

Inventor： OHMURO NORIHIKO ,  KURAMOTO AKIO ,  TANABE KOSUKE

IPC: H01Q1/36 ,  H01Q11/08

公开(公告)号：AU623365B2

公开(公告)日：1992-05-14

申请号：AU2839989

申请日：1989-01-11

Applicant: NEC CORP

Inventor： KURAMOTO AKIO ,  KOSUKEGAWA KAZUO ,  ICHIYOSHI OSAMU ,  YAMANE TOSHINOBU

IPC: G01S7/02 ,  H01Q3/30 ,  H01Q3/36 ,  H01Q19/17

公开(公告)号：EP2120288A4

公开(公告)日：2014-03-05

申请号：EP08721774

申请日：2008-03-11

Applicant: NEC CORP

Inventor： KURAMOTO AKIO ,  FUKUDA JUNICHI

IPC: H01Q1/38 ,  H01Q1/22 ,  H01Q1/48 ,  H01Q9/28 ,  H01Q9/40 ,  H01Q13/08

CPC classification number: H01Q9/285 ,  H01Q1/2208 ,  H01Q1/38 ,  H01Q1/48 ,  H01Q9/40

公开(公告)号：EP1986270A4

公开(公告)日：2009-04-29

申请号：EP07708124

申请日：2007-01-31

Applicant: NEC CORP ,  NEC ELECTRONICS CORP

Inventor： KURAMOTO AKIO ,  MOCHIZUKI TAKUJI

IPC: H01Q13/08 ,  H01Q9/40 ,  H01Q9/42 ,  H01Q19/13

CPC classification number: H01Q9/0414 ,  H01Q1/36 ,  H01Q9/40 ,  H01Q9/42

公开(公告)号：EP1143555A4

公开(公告)日：2004-11-24

申请号：EP99972377

申请日：1999-11-10

Applicant: NEC CORP

Inventor： KURAMOTO AKIO

IPC: H01Q15/14 ,  H01Q1/08 ,  H01Q1/12 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q11/08 ,  H01Q19/10 ,  H04M1/02 ,  H04Q7/32

CPC classification number: H01Q19/10 ,  H01Q1/084 ,  H01Q1/241 ,  H01Q1/36 ,  H01Q11/08

公开(公告)号：GB2438292B

公开(公告)日：2008-09-24

申请号：GB0708939

申请日：2007-05-09

Applicant: NEC CORP ,  NEC ELECTRONICS CORP

Inventor： KURAMOTO AKIO ,  MOCHIZUKI TAKUJI

IPC: H01Q13/10 ,  H01Q1/27 ,  H01Q1/38 ,  H01Q9/26 ,  H01Q9/28 ,  H01Q9/38

Abstract: The present invention provides a small, thin, and cheap foldable broadband antenna that is valid in a wide band and, moreover, can be manufactured at low cost, and a method of using the same. A foldable broadband antenna includes: a plate conductor having a rectangular outer shape and in which a slit is formed from a long side so as be orthogonal to a longitudinal direction; a side conductor provided perpendicularly from a side parallel with the slit in the plate conductor; and a back conductor disposed in parallel with the plate conductor from an end of the side conductor toward the slit. In the plate conductor, a coaxial external conductor of a coaxial cable is connected to the side opposite to the side conductor with the slit therebetween, and a coaxial central conductor of the coaxial cable is electrically connected to the same side as that of the side conductor.

公开(公告)号：AU2007202055A1

公开(公告)日：2007-12-06

申请号：AU2007202055

申请日：2007-05-08

Applicant: NEC CORP ,  NEC ELECTRONICS CORP

Inventor： KURAMOTO AKIO ,  MOCHIZUKI TAKUJI

IPC: H01Q11/04 ,  H01Q1/08 ,  H01Q9/26 ,  H01Q9/28 ,  H01Q9/38 ,  H01Q13/10

Abstract: The present invention provides a small, thin, and cheap foldable broadband antenna that is valid in a wide band and, moreover, can be manufactured at low cost, and a method of using the same. A foldable broadband antenna includes: a plate conductor having a rectangular outer shape and in which a slit is formed from a long side so as be orthogonal to a longitudinal direction; a side conductor provided perpendicularly from a side parallel with the slit in the plate conductor; and a back conductor disposed in parallel with the plate conductor from an end of the side conductor toward the slit. In the plate conductor, a coaxial external conductor of a coaxial cable is connected to the side opposite to the side conductor with the slit therebetween, and a coaxial central conductor of the coaxial cable is electrically connected to the same side as that of the side conductor.

公开(公告)号：DE69834680D1

公开(公告)日：2006-07-06

申请号：DE69834680

申请日：1998-03-12

Applicant: NEC CORP

Inventor： KURAMOTO AKIO

IPC: H01Q11/08 ,  H01Q21/24 ,  H01Q1/36 ,  H01Q1/38

Abstract: A small helical antenna with broad fan radiation pattern provides easy impedance matching and high radiation efficiency. It is composed of a dielectric cylinder, a plurality of radiation conductors arranged on the outer surface of the dielectric cylinder, a matching conductor arranged on the upper inner surface of the dielectric cylinder that cancels inductive reactance, and a plurality of feeder conductors arranged near the radiation conductors on the lower inner surface of the dielectric cylinder and lowering the impedance of the helical antenna.

公开(公告)号：HK1074536A1

公开(公告)日：2005-11-11

申请号：HK05108541

申请日：2005-09-28

Applicant: NEC CORP

Inventor： KURAMOTO AKIO

IPC: H01Q20090101 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q3/00 ,  H01Q9/28 ,  H01Q9/40 ,  H01Q21/30

Abstract: In an antenna, a first flat radiating element is placed longitudinally. A second flat radiating element is located opposite to the first flat radiating element. The first and the second radiating element are connected to each other at their lower end portions. A third flat radiating element is longitudinally located below the second flat radiating element. A central conductor of a coaxial cable is connected to the lower end portions of the first and the second flat radiating elements. An outer conductor of the coaxial cable is connected to an upper end portion of the third flat radiating element. The coaxial cable is located parallel to the third flat radiating element.