Power amplification using a direct-upconverting quadrature mixer topology
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 23, 2001
Grant Date -
Aug 23, 2001
app pub date -
May 25, 1999
filing date -
May 25, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A power amplifier for use in a wireless communication system operates like a quadrature mixer with conversion gain. The amplifier includes a local oscillator that generates two reference signals 90.degree. out of phase with respect to each other. Four quadrature mixer elements receive signals representing the in-phase and quadrature components of a baseband signal. Each quadrature mixer amplifies the in-phase or the quadrature component of the baseband signal while upconverting with the corresponding reference signal.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully