Patent · US Expired

Planar antennas of the slot type

US6828942B2 · kind B2 · utility

7Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 29, 2003
Grant dateDec 7, 2004
Priority date
Expiry dateMay 29, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01Q9/14
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

The present invention relates to a planar antenna carried by a substrate including a slot (11) consisting of a closed curve dimensioned in order to operate at a given frequency and fed by a feed line (12) positioned so that the slot lies in a short-circuit plane of the feed line. This antenna includes, in parallel on the slot 11, at least one switching means 13 capable of assuming a closed state or an open state so as to modify the operating frequency band of the planar antenna. This antenna is particularly suitable for domestic wireless networks.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.