Low-pass filter
US7944328B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Nov 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2039
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A low-pass filter includes a first curved microstrip, a second curved microstrip, a first flat microstrip, a second flat microstrip, and a third flat microstrip. The first curved microstrip is in an n-shape and defines a first receiving space therein. The second curved microstrip is in an n-shape and defines a second receiving space therein. The first flat microstrip is received in the first receiving space and connected to a topside of the n shape of the first curved microstrip. The second flat microstrip is received in the first receiving space along with the first flat microstrip and connected to one end of the first curved microstrip. The third flat microstrip is received in the second receiving space and connected to one end of the second curved microstrip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.