EP 0805512 B1 20021106 - Compact printed antenna with little radiation in elevation
Title (en)
Compact printed antenna with little radiation in elevation
Title (de)
Kompakt gedruckte Antenne mit geringer Strahlung in Elevationsrichtung
Title (fr)
Antenne imprimée compacte pour rayonnement à faible élévation
Publication
Application
Priority
FR 9605383 A 19960424
Abstract (en)
[origin: EP0805512A1] The antenna has a conductive deposit (30) on one face of a dielectric sheet. The other face is covered by an earth plane. Four radial slots (31-34) are spaced at 90 degrees intervals around the circumference of the sheet to determine resonant frequency of a selected higher mode. The fundamental mode gives a radiation pattern with a maximum at right angles to the plane of the element. In the higher (TM21,TM01) mode, the current flow at right angles to the slots. The lengths (Lo) and widths (La) of the slots are preferably computed by finite element analysis software.
IPC 1-7
IPC 8 full level
H01Q 9/04 (2006.01)
CPC (source: EP US)
H01Q 9/0407 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0805512 A1 19971105; EP 0805512 B1 20021106; CA 2203359 A1 19971024; DE 69716807 D1 20021212; DE 69716807 T2 20030710; FR 2748162 A1 19971031; FR 2748162 B1 19980724; US 5966096 A 19991012
DOCDB simple family (application)
EP 97460016 A 19970417; CA 2203359 A 19970422; DE 69716807 T 19970417; FR 9605383 A 19960424; US 83925297 A 19970417