Methods of enhancing electronmagnetic radiation properties of encapsulated circuit, and related devices
US5963177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | May 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07749
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods of forming electronic signal transmitting/receiving devices and electronic signal transmitting/receiving devices are described. In one implementation, integrated circuitry including transponder circuitry is provided and operatively coupled with an antenna to provide a transmitting/receiving circuit. A matrix material comprising suspension structure is formed and applied over at least a portion of the antenna, the suspension structure being selected to manipulate an operating characteristic of the transmitting/receiving circuit. According to a preferred aspect of the invention, the operating characteristic comprises an electrical length of the antenna and the application of the matrix material effectively increases the electrical length to resonate the antenna at a desired frequency. According to another preferred aspect of the invention, the suspension structure comprises calcium carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.