Global Patent Index - EP 0749176 A1

EP 0749176 A1 19961218 - Planar and non-planar double C-patch antennas having different aperture shapes

Title (en)

Planar and non-planar double C-patch antennas having different aperture shapes

Title (de)

Ebene und nichtebene doppel-C-förmige Streifenleiterantennen mit unterschiedlichen Öffnungsformen

Title (fr)

Antennes planes et non-planes à microbande en forme de "double C" ayant différentes formes d'ouvertures

Publication

EP 0749176 A1 19961218 (EN)

Application

EP 96304428 A 19960613

Priority

US 49077195 A 19950615

Abstract (en)

A shorted, dual C-patch antenna includes a truncated ground plane, a layer of dielectric material having a first surface overlying the ground plane and an opposing second surface, and an electrically conductive layer overlying the second opposing surface of the dielectric layer. The electrically conductive layer forms a radiating patch and has a non-rectangularly shaped aperture (e.g., parabolic, triangular, pentagonal) having a length that extends along a first edge of the electrically conductive layer and a width that extends towards an oppositely disposed second edge. The length has a value that is equal to approximately 20% to approximately 35% of a length of the first edge. The antenna may further include electrically conductive vias or feedthroughs for shorting the electrically conductive layer to the ground plane at a region adjacent to a third edge of the electrically conductive layer. The antenna may be curved about one or more axes. <IMAGE>

IPC 1-7

H01Q 9/04

IPC 8 full level

H01Q 1/24 (2006.01); H01Q 1/22 (2006.01); H01Q 9/04 (2006.01); H01Q 13/10 (2006.01)

CPC (source: EP KR)

H01Q 1/2275 (2013.01 - EP); H01Q 9/0407 (2013.01 - EP); H01Q 9/28 (2013.01 - KR)

Citation (search report)

  • [A] EP 0637094 A1 19950201 - MATSUSHITA ELECTRIC IND CO LTD [JP]
  • [A] EP 0630069 A1 19941221 - NIPPON TELEGRAPH & TELEPHONE [JP]
  • [A] EP 0176311 A2 19860402 - MATSUSHITA ELECTRIC IND CO LTD [JP]
  • [A] SANAD: "A very small double C-patch antenna contained in a PCMCIA standard PC card", NINTH INTERNATIONAL CONFERENCE ON ANTENNAS & PROPAGATION, vol. 1, 4 April 1995 (1995-04-04) - 7 April 1995 (1995-04-07), NETHERLANDS, pages 117 - 120, XP000195757
  • [A] SANAD: "Microstrip Antennas on very small ground planes for portable communication systems", IEEE ANTENNAS & PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM 1994, vol. 2, 20 June 1994 (1994-06-20) - 24 June 1994 (1994-06-24), USA, pages 810 - 813, XP000195759
  • [DA] KOSSIAVAS ET AL.: "The C-patch: A small microstrip element", ELECTRONICS LETTERS, vol. 25, no. 4, 16 February 1989 (1989-02-16), ENGLAND, pages 253 - 254, XP002012224
  • [A] HABASHY ET AL.: "Input impedance and radiation pattern of cylindrical-rectangular and wraparound microstrip antennas", IEEE TRANSACTIONS ON ANTENNAS & PROPAGATION, vol. 38, no. 5, May 1990 (1990-05-01), USA, pages 722 - 731, XP000135619

Designated contracting state (EPC)

CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0749176 A1 19961218; EP 0749176 B1 20020918; DE 69623697 D1 20021024; DE 69623697 T2 20030605; JP H09107229 A 19970422; KR 100371875 B1 20030410; KR 970004148 A 19970129

DOCDB simple family (application)

EP 96304428 A 19960613; DE 69623697 T 19960613; JP 15465696 A 19960614; KR 19960021565 A 19960614