Removably mounted retractable 1/2 wave antenna with integral matching section
US6188918A · kind A · utility
2Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/916
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A retractable 1/2 wave antenna having an integral matching section that can be used on a cellular telephone will be matched to a transceiver circuit when extended. When the antenna is retracted, it acts as a 1/4 wave antenna and will still be matched to the transceiver circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.