1. A LINC power amplifier, comprising:
at least three power amplifiers;
a first circuit to select, based on an amplitude of an input signal, at least two partial signals used for combination among the at least three partial signals to be inputted to the at least three power amplifiers, and to determine, based on the amplitude and a phase of the input signal, an amplitude and a phase of each of the at least two partial signals so that an efficiency of the LINC power amplifier is increased;
a second circuit configured to receive the at least two partial signals each having the amplitude and the phase that are determined to correspond to the power amplifiers among the at least three power; and
a combiner to combine signals obtained by amplification of the at least two partial signals at the corresponding power amplifiers.
2. The LINC power amplifier according to claim 1, wherein an input of a power amplifier corresponding to a partial signal not selected by the first circuit becomes zero.
3. The LINC power amplifier according to claim 1, wherein the at least three power amplifiers include a first power amplifier, a second power amplifier and a third power amplifier;
the first circuit generates a first partial signal to be inputted to the first power amplifier, a second partial signal to be inputted to the second power amplifier and having a half amplitude of an amplitude of the first partial signal, and a third partial signal to be inputted to the third power amplifier and having an amplitude equal to the amplitude of the second power amplifier; and
the first circuit selects the second and third partial signals as the at least two partial signals when an amplitude of the input signal is greater than zero and is smaller than the amplitude of the first partial signal.
4. The LINC power amplifier according to claim 3, wherein the first circuit selects the first and second partial signals as the at least two partial signals when the amplitude of the input signal is greater than the amplitude of the first partial signal and is smaller than a sum of the amplitude of the first partial signal and the amplitude of the second partial signal.
5. The LING power amplifier according to claim 4, wherein the first circuit selects the first to third partial signals as the at least two partial signals when the amplitude of the input signal is greater than a sum of the amplitude of the first partial signal and the amplitude of the second partial signal and is smaller than a maximum amplitude of the input signal.
6. A LINC power amplifier, comprising:
at least three power amplifiers;
a first circuit coupled to the at least three power amplifiers and configured to determine at least one of a weight or phase of one of at least two partial signals of an input signal, based on an amplitude and a phase of the input signal, wherein the at least two partial signals have different amplitudes;
a second circuit configured to receive the at least two partial signals, the determined weights or phases associated with the at least two partial signals, and apply the received weights to the at least two partial signals such that an efficiency of the LINC power amplifier is increased; and
a combiner configured to receive output signals from the second circuit and combine the output signal for transmission.
7. The LINC power amplifier of claim 6, wherein the weights of the at least two partial signals are determined based on a table in memory, and the table comprises one or more predetermined weights for the at least two partial signals.
8. The LINC power amplifier of claim 6, wherein the weights of the at least two partial signals are determined such that amplitudes of outphase components of the at least two partial signals are reduced.
9. The LINC power amplifier of claim 6, wherein the efficiency of the LINK power amplifier is increased based on the weights or phases of the at least two partial signals.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An architectural archway in an aircraft having an elongated fuselage with an upper crown portion, a floor member and a lower lobe portion, said archway comprising an inverted arcuate structure with two spaced apart end members, said structure adapted to fit inside the fuselage and be positioned on the floor member with said end members positioned on the floor member on opposite sides of the fuselage, the architectural archway further comprising a lavatory positioned in said archway structure adjacent one of said end members.
2. An architectural archway in an aircraft having an elongated fuselage with an upper crown portion, a floor member and a lower lobe portion, said archway comprising an inverted arcuate structure with two spaced apart end members, said structure adapted to fit inside the fuselage and be positioned on the floor member with said end members positioned on the floor member on opposite sides of the fuselage, the architectural archway further comprising a flight attendant seat member positioned in said archway structure.
3. A pair of architectural archways in an aircraft having an elongated fuselage with a door member, an upper crown portion, a floor member and a lower lobe portion, each of said archways comprising an inverted curved structure with a curved central portion and two spaced apart leg members, each of said leg members having an end member adapted to be positioned on the floor member, said pair of archways adapted to be positioned in the aircraft adjacent to and framing a door member, wherein at least one of said pair of archway structures has a lavatory in it.
4. A pair of architectural archways in an aircraft having an elongated fuselage with a door member, an upper crown portion, a floor member and a lower lobe portion, each of said archways comprising an inverted curved structure with a curved central portion and two spaced apart leg members, each of said leg members having an end member adapted to be positioned on the floor member, said pair of archways adapted to be positioned in the aircraft adjacent to and framing a door member, wherein at least one of said pair of archway structures has a flight attendant seat member in it.
5. An aircraft having a fuselage for carrying passengers, said fuselage having an upper crown portion, a lower lobe portion, a passenger portion, a floor member in said passenger portion, at least one door member in said passenger portion, and at least one conduit from an aircraft support system, comprising at least one archway member positioned in said passenger portion of said fuselage, said archway member having an inverted curved configuration with a curved central portion and two curved end portions, each of said curved end portions having an end member positioned on said floor member, the aircraft further comprising a lavatory positioned in at least one curved end portion of said archway member.
6. An aircraft having a fuselage for carrying passengers, said fuselage having an upper crown portion, a lower lobe portion, a passenger portion, a floor member in said passenger portion, at least one door member in said passenger portion, and at least one conduit from an aircraft support system, comprising at least one archway member positioned in said passenger portion of said fuselage, said archway member having an inverted curved configuration with a curved central portion and two curved end portions, each of said curved end portions having an end member positioned on said floor member, the aircraft further comprising a seat member positioned in at least one curved end portion of said archway member.
7. An architectural archway in an aircraft having an elongated fuselage with an upper crown portion, a floor member and a lower lobe portion, said archway comprising an arch-like structure with two spaced apart end members, said structure adapted to fit inside the fuselage and be positioned on the floor member with said end members positioned on the floor member on opposite sides of the fuselage, the archway further comprising a lavatory positioned in said archway structure adjacent one of said end members.
8. An architectural archway in an aircraft having an elongated fuselage with an upper crown portion, a floor member and a lower lobe portion, said archway comprising an arch-like structure with two spaced apart end members, said structure adapted to fit inside the fuselage and be positioned on the floor member with said end members positioned on the floor member on opposite sides of the fuselage, the archway further comprising a flight attendant seat member positioned in said archway structure.