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. 20, 2007
Filed:
Jun. 09, 2005
Kwang Seong Choi, Seoul, KR;
Jong Hyun Lee, Daejeon, KR;
Yong Duck Chung, Daejeon, KR;
Young Shik Kang, Daejeon, KR;
Jong Tae Moon, Daejeon, KR;
Je Ha Kim, Daejeon, KR;
Kwang Seong Choi, Seoul, KR;
Jong Hyun Lee, Daejeon, KR;
Yong Duck Chung, Daejeon, KR;
Young Shik Kang, Daejeon, KR;
Jong Tae Moon, Daejeon, KR;
Je Ha Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is an optical module including a microstrip line, a traveling wave type optical device positioned in the end of the microstrip line, and at least one balanced open stub connected to the microstrip line for the impedance matching at a specific frequency such as 40 GHz and 60 GHz. For the fine tuning, laser trimming can be applied to the stub. A transition region is formed between the optical device and the microstrip line. A termination resistor is formed to face the microstrip line with the optical device therebetween. A bandwidth can be controlled at a specific frequency by adjusting a number of the stubs or a value of the termination resistor.