High efficiency power amplifier

A high efficiency power amplifier comprising:

• an input matching unit for matching a predetermined input signal to a next terminal;
• a first amplifying means for amplifying the signal outputted from the input matching unit;
• a second amplifying means, which is electrically connected in parallel to the first amplifying means, for amplifying the signal outputted from the input matching unit;
• an output matching unit for performing an impedance matching of the amplified signal from the first and second amplifying means and outputting the matched signal through an output terminal;
• a first power control path for electrically connecting between the input matching unit and the output matching unit and including the first amplifying means therebetween;
• a second power control path for electrically connecting between the input matching unit and the output matching unit and including the second amplifying means therebetween;
• a bypass path for electrically connecting between the input matching unit and the output matching unit;
• a control circuit unit for selectively outputting predetermined path control signals to the first and second amplifying means on the basis of an antennal output signal outputted and applied from a predetermined control module whereby the first and second power control paths or a bypass path are selected, wherein the first amplifying means comprises:
• a fifth amplifier for amplifying the signal outputted from the input matching unit;
• an intermediate part matching unit for receiving the signal outputted from the first amplifier and performing an impedance matching;
• and
• a sixth amplifier for amplifying and outputting the output signal from the intermediate part matching unit;
• and
• the second amplifying means comprises a seventh amplifier.

A high efficiency power amplifier comprising:

• an input matching unit for matching a predetermined input signal to a next terminal;
• a first amplifying means for amplifying the signal outputted from the input matching unit;
• a second amplifying means, which is electrically connected in parallel to the first amplifying means, for amplifying the signal outputted from the input matching unit;
• an output matching unit for performing an impedance matching of the amplified signal from the first and second amplifying means and outputting the matched signal through an output terminal;
• a first power control path for electrically connecting between the input matching unit and the output matching unit and including the first amplifying means therebetween;
• a second power control path for electrically connecting between the input matching unit and the output matching unit and including the second amplifying means therebetween;
• a bypass path for electrically connecting between the input matching unit and the output matching unit;
• a control circuit unit for selectively outputting predetermined path control signals to the first and second amplifying means on the basis of an antennal output signal outputted and applied from a predetermined control module whereby the first and second power control paths or a bypass path are selected, and wherein the power amplifier has one or more first and second power control paths.

A high efficiency power amplifier comprising:

• an input matching unit for matching a predetermined input signal to a next terminal;
• a first amplifying means for amplifying the signal outputted from the input matching unit;
• a second amplifying means, which is electrically connected in parallel to the first amplifying means, for amplifying the signal outputted from the input matching unit;
• an output matching unit for performing an impedance matching of the amplified signal from the first and second amplifying means and outputting the matched signal through an output terminal;
• a first power control path for electrically connecting between the input matching unit and the output matching unit and including the first amplifying means therebetween;
• a second power control path for electrically connecting between the input matching unit and the output matching unit and including the second amplifying means therebetween;
• a bypass path for electrically connecting between the input matching unit and the output matching unit;
• a control circuit unit for selectively outputting the predetermined path control signals to the first and second amplifying means on the basis of an antennal output signal outputted and applied from a predetermined control module whereby the first and second power control paths or a bypass path are selected, and wherein the antenna output signal inputted to the control circuit unit is a 2 bit signal, and the control circuit unit combines the 2 bit signal and produces path control signals for selecting one path control path among one or more power control paths.

A high efficiency power amplifier comprising:

• an input matching unit for matching an input signal;
• a first amplifying means for amplifying the signal outputted from the input matching unit;
• the first amplifying means comprising:
• a first amplifier for amplifying the signal outputted from the input matching unit;
• an intermediate part matching unit for receiving the signal outputted from the first amplifier and performing an impedance matching;
• and
• a second amplifier for amplifying and outputting the output signal from the intermediate part matching unit;
• a second amplifying means, which is electrically connected separately to the input matching unit in parallel to the first amplifying means, for amplifying the signal outputted from the input matching unit;
• the second amplifying means comprising:
• a third amplifier for amplifying the signal outputted from the input matching unit;
• an intermediate part matching unit for receiving the signal outputted from the third amplifier and performing an impedance matching;
• and
• a fourth amplifier for amplifying and outputting the output signal from the intermediate part matching unit;
• an output matching unit for performing an impedance matching of the amplified signal from the first and second amplifying means and outputting the matched signal through an output terminal;
• a first power control path for electrically connecting between the input matching unit and the output matching unit and including the first amplifying means therebetween;
• a second power control path for electrically connecting between the input matching unit and the output matching unit and including the second amplifying means therebetween;
• a bypass path for electrically connecting between the input matching unit and the output matching unit;
• a control circuit unit for selectively outputting the predetermined path control signals to the first and second amplifying means on the basis of an antennal output signal outputted and applied from a predetermined control module whereby when the first amplifying means is selected, the predetermined path control signal is directly outputted to the first and second amplifiers of the first amplifying means, when the second amplifying means is selected, the predetermined path control signal is directly outputted to the third and fourth amplifiers of the second amplifying means, so that the first and second amplifiers are simultaneously activated or the third and fourth amplifiers are simultaneously activated.

A high efficiency power amplifier comprising:

• an input matching unit for matching input signal;
• a third amplifying means for amplifying the signal outputted from the input matching unit;
• the third amplifying means comprising:
• a fifth amplifier for amplifying the signal outputted from the input matching unit;
• an intermediate part matching unit for receiving the signal outputted from the fifth amplifier and performing an impedance matching;
• and a sixth amplifier for amplifying and outputting the output signal from the intermediate part matching unit;
• a seventh amplifier, which is electrically connected to the input matching unit in parallel to the fifth amplifier of the third amplifying means, for amplifying the signal outputted from the input matching unit;
• an output matching unit for performing an impedance matching of the amplified signal from the third amplifying means and the seventh amplifier and outputting the matched signal through an output terminal;
• a first power control path for electrically connecting between the input matching unit and the output matching unit and including the third amplifying means therebetween;
• a second power control path for electrically connecting between the input matching unit and the output matching unit and including the seventh amplifier therebetween;
• a bypass path for electrically connecting between the input matching unit and the output matching unit;
• a control circuit unit for selectively outputting the predetermined path control signals to the third amplifying means and the seventh amplifier on the basis of an antennal output signal outputted and applied from a predetermined control module whereby when the third amplifying means is selected, the predetermined path control signal is directly outputted to the fifth and sixth amplifiers of the first amplifying means, when the seventh amplifier is selected, the predetermined path control signal is directly outputted to the seventh amplifier, so that the fifth and sixth amplifiers are simultaneously activated or the seventh amplifier is activated.