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A smart handheld device

A handheld device and intelligent technology, applied in the field of communication, can solve the problems of high efficiency of GaAsMMMB power amplifier, unaffordability of GaAsMMMB power amplifier, excessive output capacitance, etc., to achieve low power loss, increase bandwidth, and reduce area Effect

Active Publication Date: 2019-03-12
DYNAX SEMICON
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  • Claims
  • Application Information

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Problems solved by technology

However, the low mobility of the GaAs material properties will lead to the inability to make the efficiency of the GaAs MMMB power amplifier high, and the output capacitance is too large, resulting in obvious narrow-band characteristics
At the same time, GaAs MMMB power amplifiers can only be applied to low voltage due to their reliability limitations, which determines that GaAs MMMB power amplifiers cannot meet the technical requirements of high-efficiency, broadband, and small-size systems

Method used

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  • A smart handheld device
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Embodiment Construction

[0047] 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.

[0048] The invention discloses an intelligent hand-held device, which has higher transmission link efficiency and bandwidth, and the area of ​​the transmission link is smaller.

[0049] see figure 1 , figure 1 It is a structural schematic diagram of a smart handheld device disclosed by the present invention. The smart handheld device includes a battery unit 1 , a battery management unit 2 , a buck-boost unit 3 , a digital processing unit 4 , a transmitter 5 ...

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Abstract

The invention discloses an intelligent handheld device comprising: a GaN radio frequency power amplifier, a battery unit, a voltage increase and voltage reduction unit, a battery management unit, a digital processing unit, a transmitter and an antenna; the battery management unit is provided with a first power supply channel, and the battery management unit is separately connected with the digital processing unit and the battery unit; an input end of the voltage increase and voltage reduction unit is connected with the first power supply channel, an output end is connected with a power supply end of the GaN radio frequency power amplifier, and a control end is connected with the digital processing unit; and the digital processing unit controls the battery management unit to adjust a series-parallel connection relation of batteries in the battery unit according to the optimal working voltage necessary for the GaN radio frequency power amplifier, so that a difference value of the voltage of the first power supply channel and the optimal working voltage is the minimum, and meanwhile controls the voltage increase and voltage reduction unit to output the optimal working voltage necessary for the GaN radio frequency power amplifier. The intelligent handheld device disclosed by the invention has a relatively high emission link bandwidth and efficiency and a relatively small emission link area.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an intelligent handheld device. Background technique [0002] With the advent of the era of big data, smart handheld devices (such as mobile phones, broadcast radio communication terminals, or small mobile short- and medium-distance base station terminals) are used as transfer stations to carry the mission of information transmission. [0003] At present, mobile communication has entered the 4G era, which is mainly due to the application of LTE (Long Term Evolution) technology. LTE adopts OFDMA (Orthogonal Frequency Division Multiple Access) modulation technology to improve frequency band utilization, its peak rate will reach 1Gps, and its maximum bandwidth will reach 100MHz. Now the widely used LTE frequency band reaches 43 Bands (frequency bands), covering 700MHz-3.4GHz. Mobile phone manufacturers need to make multiple channels on the transmission link to me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/3827H04B1/40H02J7/00
CPCH02J2207/20H04B1/3827H04B1/40
Inventor 潘宇
Owner DYNAX SEMICON