Repeater with variable bandwidth
US5987304A · kind A · utility
47Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | May 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/15528
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A mobile telephone repeater with a variable bandwidth is disclosed. The repeater comprises an uplink and downlink, each being provided with amplifier chains (6). Each chain comprises at least two band pass filter units (10, 11) coupled in series and having controllable pass bands, which at least partially overlap each other. The center frequency of the filter units are controllable so as to make the bandwidth of the resulting pass band variable. Consequently, the effective bandwidth of the amplifier chain is controllable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.