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:
Sep. 07, 1999
Filed:
Sep. 10, 1997
Applicant:
Inventor:
John D Swank, II, Hudson, OH (US);
Assignee:
Bird Electronic Corporation, Solon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ; G01R / ;
U.S. Cl.
CPC ...
343703 ; 343860 ;
Abstract
An antenna tester has a signal generator that produces a test signal applied to the antenna and a reference signal; the test signal and reference signals having a shared noise modulated characteristic; a circuit for detecting a reflected test signal from the antenna in response to the test signal; and a demodulator circuit for demodulating the reflected test signal and reference signal based on the noise characteristic to produce first and second output signals; the first and second output signals having detectable characteristics related to the antenna impedance characteristics.