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:
Feb. 16, 1988
Filed:
Sep. 25, 1986
Sadao Igarashi, Soma, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A waveguide-microstrip line converter for mode conversion in transmitting signals from a waveguide to a microstrip line or in the reverse, which comprises a dielectric body, a probe formed integrally with and within the dielectric body, and a conductive layer formed over the surface of the dielectric body excluding a surface to be brought into contact with a waveguide and an area surrounding the connecting part of the probe. The conductive layer is formed over the entire surface of the dielectric body, and then part of the conductive layer is removed by etching to provide the uncoated surface to be brought into contact with the waveguide and the probe. Thus the probe is continuous with the conductive layer and is an integral part of the dielectric body, so that the performance of the probe is unaffected by vibration and the high frequency resistance across the short-circuit waveguide is reduced to reduce signal transmission loss.