公开(公告)号：AU2010221814A1

公开(公告)日：2010-10-07

申请号：AU2010221814

申请日：2010-09-16

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： CHARYCH HAL E ,  GROSSFIELD HENRY ,  NGOC MINH LUONG ,  BRIDGELALI RAJ ,  KNADLE RICHARD T JR ,  PANDORF ROBERT P

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of a free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of a electromagnetic energy source and a electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

公开(公告)号：AU2004275396A1

公开(公告)日：2005-06-02

申请号：AU2004275396

申请日：2004-08-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： NGOC MINH LUONG ,  PANDORF ROBERT P ,  GROSSFIELD HENRY ,  CHARYCH HAL E ,  KNADLE RICHARD T JNR ,  BRIDGELALI RAJ

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of a free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of a electromagnetic energy source and a electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

公开(公告)号：CA2505482C

公开(公告)日：2013-01-22

申请号：CA2505482

申请日：2004-08-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： KNADLE RICHARD T JR ,  CHARYCH HAL E ,  GROSSFELD HENRY ,  PANDORF ROBERT P ,  NGOC MINH LUONG ,  BRIDGELALL RAJ

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

公开(公告)号：AU2004275396A8

公开(公告)日：2008-10-02

申请号：AU2004275396

申请日：2004-08-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BRIDGELALI RAJ ,  KNADLE RICHARD T JNR ,  NGOC MINH LUONG ,  GROSSFIELD HENRY ,  CHARYCH HAL E ,  PANDORF ROBERT P

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of a free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of a electromagnetic energy source and a electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

公开(公告)号：CA2505482A1

公开(公告)日：2005-04-28

申请号：CA2505482

申请日：2004-08-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： GROSSFELD HENRY ,  KNADLE RICHARD T JR ,  BRIDGELALL RAJ ,  CHARYCH HAL E ,  PANDORF ROBERT P ,  NGOC MINH LUONG

IPC: H01Q9/28 ,  H01Q19/30

Abstract: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.