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:
Nov. 06, 2001
Filed:
Oct. 15, 1999
Gregory P. Junker, El Segundo, CA (US);
Vrage Minassian, Burbank, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A first embodiment of a waveguide coupler (,) has a substantially square cross-section with a width tapering from a first width a at a first end (,) to a smaller width b at a second end (,). Each side of the square waveguide coupler is provided with a turnstile port (,). The first end is coupled to a first waveguide (,) to couple the turnstile ports with the first waveguide, while the second end is coupled to a second waveguide, coupling the first and second waveguides together. Signals throughout the waveguide coupler's lower frequency band can be coupled between the turnstile ports and the first waveguide, while signals throughout the higher end of the frequency band can be coupled from the first waveguide to the second waveguide, and signals within the frequency band can be coupled from the second waveguide to the first waveguide. A second embodiment (,) includes a first waveguide coupling section (,) having a first end (,) with a substantially circular cross-section which is connected to a circular first waveguide (,), and a second end (,) with a substantially square cross-section. A second waveguide coupling section (,) has a configuration like waveguide coupler (,) of the first embodiment. The larger end of the second waveguide coupling section is coupled to the first waveguide coupling section to couple the turnstile ports with the first waveguide. The second of the second waveguide coupling section is coupled to a square second waveguide to couple the first and second waveguides together.