Baseband signal input current splitter
US7949367B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/406
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A current steering mechanism is provided in a radio transmitter (e.g., a multiband radio transmitter) to provide compatibility with a variety of baseband parts. Different proportions of an input signal current (“in”) are steered to a dummy load, a mixer for a first band, and at least one other mixer for a second band. The mechanism is structured to selectively apportion a current input signal between multiple paths of the same polarity having respective load circuits and concurrently steer different proportions of the current input signal to a dummy load path and at least one mixer path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.