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:
Mar. 17, 2009
Filed:
Sep. 15, 2004
Laurence P. Sadwick, Salt Lake City, UT (US);
Jehn-huar Chern, Salt Lake City, UT (US);
Ruey-jen Hwu, Salt Lake City, UT (US);
Jishi Ren, Kanata, CA;
Ding Wu, Salt Lake City, UT (US);
Ching-hsi Lin, Salt Lake City, UT (US);
Laurence P. Sadwick, Salt Lake City, UT (US);
Jehn-Huar Chern, Salt Lake City, UT (US);
Ruey-Jen Hwu, Salt Lake City, UT (US);
Jishi Ren, Kanata, CA;
Ding Wu, Salt Lake City, UT (US);
Ching-Hsi Lin, Salt Lake City, UT (US);
Innosys, Inc., Salt Lake City, UT (US);
Abstract
Embodiments of the present invention include helical, ring bar and tunnel ladder slow wave structures (SWSs). Embodiments of methods of micro-fabricating such SWSs are also disclosed. Embodiments of high frequency electromagnetic devices including such SWSs are also disclosed. Exemplary high frequency electromagnetic devices may include a traveling wave tube, a traveling wave tube amplifier, a back wave oscillator, as part of a linear accelerator, a microwave power module, a klystron or a millimeter-wave power module.