Patent · US Expired

Automobile antenna system

US4717921A · kind A · utility

8Cited by
37References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 14, 1985
Grant dateJan 5, 1988
Priority date
Expiry dateNov 14, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01Q1/3283
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

The present invention provides an automobile antenna system including a small-sized loop antenna disposed in close proximity to the vehicle body and adapted to detect surface currents induced on the vehicle body by radio or other waves, the loop antenna being in the form of a single-winding coil which is housed within a casing rigidly mounted on the vehicle body near the marginal edge thereof, the casing being provided with an opening for receiving the marginal edge of the vehicle body such that the loop antenna can properly be positioned relative to the marginal edge of the vehicle body.

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