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:
May. 29, 1984
Filed:
Mar. 22, 1982
Francis H Stites, Wayland, MA (US);
GTE Products Corporation, Stamford, CT (US);
Abstract
An efficient circuit for coupling at least two radio frequency transmitters of arbitrary power and frequency to one antenna comprises a three-port ferrite circulator connected to the output of each transmitter, a tee connector with a predetermined impedance mismatch connected to the first output port of each circulator, a first in-phase power combiner connected to the second output port of each circulator, and a second in-phase power combiner connected to the outputs of the tee connector and first combiner for adding the RF power and feeding the attached antenna. The impedances of transmission lines connected to the tee connector are selected to present a 3 to 1 voltage standing wave ratio to input lines so that reflected power is equally divided and fed in segments of equal power, phase and amplitude to that of the original summation for recombining and delivery to the antenna. The circuit effectively isolates the transmitters from each other and combines their outputs with high efficiency and minimum loss.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile