Trap microstrip PIFA
US6380895B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/371
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a small microstrip antenna device, mountable inside a hand-held radio communication device, for receiving and transmitting RF signals in one or more frequency bands. The microstrip antenna comprises a ground plane means (101), at least a first feeding means (107) and N radiating elements where N is an integer greater than zero. The microstrip antenna structure also has a first conductive path (104). The feeding means is arranged on the first patch for feeding radio frequency signals to the N radiating elements, wherein at least a first of the N radiating elements has a second patch (106). The second patch is inductively coupled (108) to the first patch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.