Multi-layered compact slot antenna structure and method
US5966101A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/38
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-layered compact slot antenna shortens the physical length of a slot antenna (710) by using more than one conductive layer, separated by a dielectric layer, to create inductor structures (790, 795) within a slot antenna. Adding inductance to a slot antenna allows a physical reduction in slot length without altering the antenna's radiant frequency range. The geometry of the inductor structures can be designed so that the electric current direction seen about the slot and the electric field direction across the slot is maintained, which aids antenna efficiency and allows arrangements of multiple compact slot antennas. Capacitor structures (780, 785) can also be included to balance out the additional stored magnetic energy in the inductor structures (790, 795).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.