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. 05, 2015
Filed:
Dec. 07, 2011
Applicant:
William E. Mckinzie, Iii, Fulton, MD (US);
Inventor:
William E. McKinzie, III, Fulton, MD (US);
Assignee:
Wemtec, Inc., Fulton, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 3/08 (2006.01); H01P 9/00 (2006.01); H01Q 15/10 (2006.01); H01Q 25/00 (2006.01); H05K 1/02 (2006.01); H01P 1/20 (2006.01);
U.S. Cl.
CPC ...
H01P 1/2005 (2013.01); H01Q 15/10 (2013.01); H01Q 25/008 (2013.01); H05K 1/0236 (2013.01);
Abstract
Electromagnetic slow wave structures (SWS) comprised of arrays of conductive obstacles are formed inside conductive parallel-plate waveguides These SWS may be formed using, for example, MEMS manufacturing processes at the wafer level on substrates including ceramic and silicon. An effective relative permittivity in the range of 15 to 40 may be obtained at millimeterwave frequencies. The SWS can be made absorptive by incorporating resistive losses in a plate of the PPW. Applications of these slow wave structures include delay lines and bootlace lens beamformers for microwave and millimeterwave antenna systems.