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. 25, 2002
Filed:
Jun. 14, 2000
David D. Crouch, Corona, CA (US);
Vincent Giancola, Chino, CA (US);
Kenneth W. Brown, Yucaipa, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A compact four-way waveguide power divider ( ). The inventive power divider ( ) includes an input waveguide ( ) that terminates at a junction with two adjacent waveguides on opposite sides of the input waveguide. On the opposite side of the junction is a conducting wall into which is built an inductive septum ( ). The inductive septum ( ) serves to partially match the input impedance of the structure. Second and third inductive septums ( and ) are also built into the output arms of the power divider ( ). The purpose of the second and third septums ( and ) is twofold. In addition to partially matching the power divider's input impedance, the positions of the second and third septums ( and ) can be adjusted to equalize the power division between the output arms. Hence, the waves exiting the four output arms of the power divider have highly equalized amplitudes and phases. Further, the phases at the output ports are equalized by adjusting the lengths of the output arms. The use of offset inductive septums ( and ) in the output arms to achieve equalized power division allows the input and output waveguides to be placed in very close proximity, resulting in an extremely compact structure.