Abstract:
Embodiments of the present invention relate to the field of power amplifiers, and provide a power amplifier, a power amplification method, and a power amplification control apparatus and method. The power amplifier includes n Doherty power amplification units connected in parallel and an n-way outphasing combiner, where n≥2 and n is an integer; each Doherty power amplification unit includes one input end and one output end; the n-way outphasing combiner includes n input ends and one output end; and the output ends of the Doherty power amplification units are separately connected to the input ends of the n-way outphasing combiner. In the present invention, by means of the power amplifier having this structure, high efficiency can be maintained within a larger input power changing range, thereby further reducing power consumption.
Abstract:
Amplifier circuits implemented with a buffer amplifier with a voltage gain substantially equal to one. In one example, a continuous-time amplifier is implemented by applying the input source across the input and the output terminals of the buffer amplifier. In another example, a discrete-time amplifier is implemented. During the sampling phase at least one input voltage is sampled, and during the transfer phase at least one capacitor is coupled across the input and the output terminals of a buffer amplifier to effectuate an amplification.
Abstract:
A bi-directional amplifier, transceiver, integrated circuit, mobile unit, telecommunication infrastructure for amplification of signals received or signals to be transmitted in a communication circuit and a method for bi-directional amplification comprising amplifying signals in a bi-directional amplifier and directing a signal between two or more different paths comprising at least one first biased semiconductor amplification element (230, 340, 450, 550) connected to a at least one first impedance matching network (210, 310, 410, 510), at least one second biased semiconductor amplification element (240, 350, 460, 560) connected to a second impedance matching network (220, 330, 430, 530), a first device for biasing the at least one first biased semiconductor amplification element and a second device for biasing the at least one second biased semiconductor amplification element where the direction of signal amplification in said bi-directional amplifier is controlled by the first or second device for biasing the at least one first (230, 340, 450, 550) or second (240, 350, 460, 560) biased semiconductor amplification element.
Abstract:
The present invention relates to a programmable microwave circuit (1 ) four ports (3), and combinations of such circuits. Between each pair of ports there is at least one connection without amplification, at least one connection having amplification from a first port of the pair of ports to a second port of the pair of ports, and at least one connection having amplification from the second port to the first port. Further, there is control electronics (2) with the ability to open and close the respective connection and respective port, by which the microwave circuit could be configured for different purposes, such as amplifier, power splitter/power combiner and router.
Abstract:
A bidirectional amplifier has first and second two-terminal ports (P1, P2) each capable of acting as either an input or an output for said amplifier. A field effect type transistor (FT1) is connected in common gate mode with the common (or grounded) terminal (T2, T4) of each of said ports (P1, P2) being at least AC connected with the gate (G) of said transistor (FT1), and the source (S) and drain (D) of said transistor (FT1) being respectively connected to a corresponding one of the other terminals (T1, T3) of said ports (P1, P2) via an impedance matching device (N1, L1, N3, L3).
Abstract:
The invention relates to an integrated input/output interface for low and/or high voltage signals of the digital and/or analog type. It comprises essentially a power amplification circuit block (2) having at least one low voltage input (A) and at least one high voltage output (B), and a second amplification circuit block (3) including active power components and having a high voltage input connected to said high voltage output (B) and at least one low voltage output (D). A conventional circuit block (4) prevents a high voltage signal being input to (B) from propagating through the block (2), so that it only affects the block (3). This interface is implemented in mixed high voltage BCD technology.
Abstract:
Embodiments of the present invention relate to the field of power amplifiers, and provide a power amplifier, a power amplification method, and a power amplification control apparatus and method. The power amplifier includes n Doherty power amplification units connected in parallel and an n-way outphasing combiner, where n‰¥2 and n is an integer; each Doherty power amplification unit includes one input end and one output end; the n-way outphasing combiner includes n input ends and one output end; and the output ends of the Doherty power amplification units are separately connected to the input ends of the n-way outphasing combiner. In the present invention, by means of the power amplifier having this structure, high efficiency can be maintained within a larger input power changing range, thereby further reducing power consumption.
Abstract:
The present invention relates to a programmable microwave circuit (1 ) four ports (3), and combinations of such circuits. Between each pair of ports there is at least one connection without amplification, at least one connection having amplification from a first port of the pair of ports to a second port of the pair of ports, and at least one connection having amplification from the second port to the first port. Further, there is control electronics (2) with the ability to open and close the respective connection and respective port, by which the microwave circuit could be configured for different purposes, such as amplifier, power splitter/power combiner and router.
Abstract:
A bi-directional amplifier, transceiver, integrated circuit, mobile unit, telecommunication infrastructure for amplification of signals received or signals to be transmitted in a communication circuit and a method for bi-directional amplification comprising amplifying signals in a bi-directional amplifier and directing a signal between two or more different paths comprising at least one first biased semiconductor amplification element (230, 340, 450, 550) connected to a at least one first impedance matching network (210, 310, 410, 510), at least one second biased semiconductor amplification element (240, 350, 460, 560) connected to a second impedance matching network (220, 330, 430, 530), a first device for biasing the at least one first biased semiconductor amplification element and a second device for biasing the at least one second biased semiconductor amplification element where the direction of signal amplification in said bi-directional amplifier is controlled by the first or second device for biasing the at least one first (230, 340, 450, 550) or second (240, 350, 460, 560) biased semiconductor amplification element.