Microwave transmission line integrated microwave generating element and microwave transmission line integrated microwave detecting element
US7764136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2006 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Nov 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B15/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A strip line integrated microwave generating element and a microwave detecting element comprises a signal electrode and a ground electrode. The element has a magnetic tunnel junction structure which includes a magnetization fixed layer, a MgO tunnel barrier layer, and a magnetization free layer. The magnetization free layer is 200 nm square or smaller in a cross-sectional area. The magnetization fixed layer is in contact with either one of the signal electrode and the ground electrode while the magnetization free layer of the element being in contact with the other. The element is smaller than the electrodes and mounted on a part of the signal electrode or the ground electrode. A MR ratio of the element is of 100% or more. A resistance value of the element is from 50Ω to 300Ω. The resistance of the element is matched with an impedance of the microwave transmission line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.