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Inventor: Hau; Gary
Address: Merrimack, NH
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7554407 |
Multi-mode power amplifier with low gain variation over temperature |
June 30, 2009 |
| A multi-mode RF amplifier is described having at least a higher and a lower power path coupling an input to an output. At a pre-selected output power level, the higher power path is enabled while the lower power path is disabled when more output power is required. The process is reversed |
| 7518446 |
Multi-mode power amplifier with reduced low power current consumption |
April 14, 2009 |
| A multi-mode RF amplifier is disclosed having high and low output power modes composed of two power paths. When the multi-mode RF amplifier is biased into the high power, HP, mode, substantial power is delivered via both (first and second) paths. While in the low power, LP, mode, power i |
| 7479827 |
Multi-mode power amplifier with high efficiency under backoff operation |
January 20, 2009 |
| A multi-mode RF amplifier is disclosed having high and low output power modes and two power paths. A first RF amplifier delivers power to both paths. When the multi-mode RF amplifier is biased into the high power, HP, mode, substantial power is delivered via both (first and second) p |
| 7427897 |
Power amplifier with close-loop adaptive voltage supply |
September 23, 2008 |
| A two-(or multi)stage power amplifier receives a variable RF input signal, and outputs an optimized. RF output signal from, for example, a mobile handset. The output power level from the handset is predetermined, as known in the art, by the received control signal from a base station. Th |
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