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:
Apr. 17, 2001
Filed:
Sep. 04, 1998
Gerald E. Roberts, Lynchburg, VA (US);
John R. Lane, Forest, VA (US);
John R. Poirier, Gilbertsville, PA (US);
Robert B. Sanders, Pamplin, VA (US);
William P. Overstreet, Roanoke, VA (US);
Johannes J. Vandegraaf, Lynchburg, VA (US);
Jeff Johnson, Forest, VA (US);
David Bing, Forest, VA (US);
Fulvio Bonecchi, Menlo Park, CA (US);
Ericsson Inc., Lynchburg, VA (US);
Abstract
An architecture and frequency plan for a wideband UHF radio minimizing spurious output signal emissions uses a low value for the ratio of the maximum RF operating frequency to the (first) intermediate frequency (IF) in the radio, as part of its internal superheterodyne conversion process. A minimum value or a value sufficiently close to the minimum value of this ratio allows the radio design to be optimized to reduce spurious outputs and the effects of inherently present major harmonics. These and other advantages and features permit a radio design to be realized in a cost effective manner for an array of stringent performance specifications including low spurious output emissions.