The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 1982
Filed:
Mar. 31, 1981
Applicant:
Inventor:
Robert H Johns, Huntingdon Valley, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
343722 ;
Abstract
Antenna traps without a separate capacitor component are disclosed. The traps are tuned by the capacitance between bifilar coils employed as the trap inductor. Simplicity, low cost, and ease of fabrication are the advantages of this trap. Two methods for winding a trap antenna from a continuous wire that becomes both antenna segments and resonant traps are also disclosed.