Power combiner and power amplifier integrated circuit
A technology for power amplifiers and power combiners, applied in amplifiers, amplifiers with semiconductor devices/discharge tubes, amplifier input/output impedance improvements, etc., can solve the problems of large stacking network loss, lower gain and linearity, etc., to achieve The effect of reducing loss
Pending Publication Date: 2019-10-29
GUANGDONG UNIV OF TECH
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Problems solved by technology
However, when using this method of device stacking to achieve higher power amplification effects, the gain and linearity of a single power amplifier are greatly reduced compared with the non-stacked form, resulting in a large loss in the stacking network
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[0030] The core of the present invention is to provide a power synthesizer and a power amplifier integrated circuit for reducing the loss of the power amplifier stacking network.
[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] figure 2 The circuit diagram of the first power combiner provided for the embodiment of the present invention; image 3 A kind of transformer equivalent model provided for the embodiment of the present invention; Fig. 4 (a) provides a kind of for the embodiment of the prese...
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The invention discloses a power combiner, which comprises 4n power amplifiers, a transformer matching network and a power output circuit, wherein n is a positive integer; the output ends of the poweramplifiers are combined into one path through the transformer matching network and then are connected with the input end of the power output circuit; the transformer matching network comprises at least one stage of parallel network. Compared with the prior art in which the output ends of a plurality of power amplifiers are connected in series to form one device stack, the invention designs a transformer matching network comprising at least one parallel network. The transformer matching network participates in impedance conversion matching of each power amplifier, so that the power amplifier stacking network can realize impedance in a wider range in a device frequency band, a single power amplifier can obtain maximum PAE in an optimal matching impedance state, and the loss of the whole power amplifier stacking network is reduced. The invention also discloses a power amplifier integrated circuit which has the above beneficial effects.
Description
technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a power combiner and a power amplifier integrated circuit. Background technique [0002] With the rapid and diversified development of mobile communication technology, communication systems have higher and higher requirements for communication quality and information processing, and stricter requirements for system linearity. Fifth-generation (5G) cellular systems in mmWave frequency bands can achieve gigabit-per-second wireless links, phased array transmitters for 5G mobile uplinks require high output power and efficient power amplifiers (PAs) to Reduce size and power consumption. [0003] Since the millimeter wave has a very large loss during space transmission, in order to increase the transmission distance, the output power of the millimeter wave power amplifier is highly required. It can be said that the millimeter wave power amplifier is one of the key componen...
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Login to View More IPC IPC(8): H03F1/56H03F3/213
CPCH03F1/565H03F3/213Y02D30/70
Inventor 李铖蓝焕青章国豪
Owner GUANGDONG UNIV OF TECH