Antenna apparatus and communication apparatus using the antenna apparatus
US6172646A · kind A · utility
9Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Oct 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/38
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna apparatus has improved gain, and its characteristics are barely affected by changes in the external environment in which it used, such as when it is placed close to a ground conductor. A surface-mount antenna and a monopole antenna are fed by a single feeding point, and the direction of an open end of the surface-mount antenna, taking a ground end of a radiation electrode as a reference, runs opposite to the direction of the open end of the monopole antenna, taking the feeding terminal as a reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.