Title: Amplitude-modulation antenna of noise reduced
Application Number: 03160340 Application Date: 2003.09.26
Publication Number: 1497778 Publication Date: 2004.05.19
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01Q7/08,H03C1/04
Applicant(s) Name: Bose Corp. Address:
Inventor(s) Name: Charles E. Dene Jr.
Attorney & Agent: shao eli ma ying
Abstract:
     An AM radio antenna circuit having a ferrite bar loop antenna comprises a resonating structure forming a balanced antenna circuit, a varactor diode tuning structure presenting a controllable capacitance to said winding structure, a DC path including the winding structure coupled to the varactor constructed and arranged to deliver a tuning signal to the varactor, and means for connecting the antenna circuit to the input of an external detector integrated circuit.
Time: 10