Patent · US Expired

Flat slot array antenna

US5239311A · kind A · utility

7Cited by
19References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 6, 1992
Grant dateAug 24, 1993
Priority date
Expiry dateApr 6, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01Q21/0012
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A flat slot array antenna as composed of a waveguide having a rectangular sectional shape, and a power feeder means connected to the waveguide at a power feed opening. A plurality of wave radiation slots are formed within one of the metallic plates forming the waveguide. The length of each slot is progressively increased toward a terminal end of the power propagation within the space of the waveguide within a range which does not exceed the resonance length of the slot, and the distance between the slots is progressively reduced toward the terminal end of the waveguide.

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