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. 04, 1995
Filed:
Jul. 20, 1992
David B Rutledge, Pasadena, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A nonresonant, traveling-wave V-shaped slot antenna providing high gain and a broad bandwidth for coupling infrared radiation onto a detector. The V-shaped slot antenna includes a relatively thick dielectric substrate and a metallization layer formed on the substrate. The metallization layer includes a pair of slots positioned at an angle .phi..sub.1 to form a V-shaped slot. The slot angle .phi..sub.1 is equal to approximately twice the radiation angle .psi., which is defined as the arccos of v.sub.d /v.sub.s, where v.sub.s is the propagation velocity of the infrared radiation in the two slots and v.sub.d is the propagation velocity of the radiation in the dielectric substrate. At the slot angle .phi..sub.1, the radiation in the two slots adds in phase to produce a single high-gain beam along the V axis.