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:
Oct. 13, 2009
Filed:
Feb. 25, 2005
Nobuki Hiramatsu, Kyoto, JP;
Yuji Kishida, Kyoto, JP;
Kazuki Hayata, Kyoto, JP;
Yoshiko Oya, Kyoto, JP;
Takeshi Takenoshita, Kyoto, JP;
Nobuki Hiramatsu, Kyoto, JP;
Yuji Kishida, Kyoto, JP;
Kazuki Hayata, Kyoto, JP;
Yoshiko Oya, Kyoto, JP;
Takeshi Takenoshita, Kyoto, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A millimeter-wave transmitter-receiver uses an NRD guide as a fundamental configuration and includes a millimeter-wave signal oscillator, a pulse modulator, a circulator, an antenna and a mixer. In the millimeter-wave transmitter-receiver, a line length of a third dielectric guide is set so that δ=±π in which δ is a phase difference at a center frequency between a portion of a transmission millimeter-wave signal, which is reflected via a third dielectric guide on the leading end portion of the third dielectric guide and returned to leak to a third connecting portion of the circulator, and another portion of the millimeter-wave signal, which leaks from a first connecting portion to the third connecting portion of the circulator. It is possible to reduce the change in the mixer output and enhance the millimeter-wave transmission/reception performance.