High-efficiency broadband radio frequency power amplifier

A radio frequency power and amplifier technology, applied in the field of broadband radio frequency power amplifiers, can solve the problems of high design difficulty, low power added efficiency, and narrow bandwidth of high frequency amplifiers, and achieve the effects of small product size, wide operating frequency band, and high efficiency

Pending Publication Date: 2022-05-31
UNIV OF ELECTRONIC SCI & TECH OF CHINA +2
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  • Application Information

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Problems solved by technology

[0003] Due to the relatively high design difficulty of high-frequency amplifiers, the current high-fre

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  • High-efficiency broadband radio frequency power amplifier
  • High-efficiency broadband radio frequency power amplifier
  • High-efficiency broadband radio frequency power amplifier

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] see Figure 1-6 As shown, the specific embodiments provided by the present invention are as follows:

[0027] As an embodiment of the present application, a high-efficiency broadband radio frequency power amplifier includes a first amplifying circuit, see figure 1 As shown in, the first amplifier circuit has:

[0028] The input matching module 1, the driver stage amplifier 2, the interstage matching module 3, the power stage ...

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Abstract

The invention provides a high-efficiency broadband radio frequency power amplifier which comprises a first amplifying circuit which is provided with an input matching module, a driving stage amplifier, an inter-stage matching module, a power stage amplifier and an output matching module which are sequentially connected in series from a radio frequency input end to a radio frequency output end; each of the input matching module and the inter-stage matching module is provided with a plurality of series low-pass structures, each low-pass structure is provided with a series microstrip line and a shunt capacitor, one end of the shunt capacitor is loaded on a connecting line, close to one side of a radio frequency input end, of the series microstrip line, and the other end of the shunt capacitor is grounded; and the plurality of low-pass structures are connected in series to form an alternating structure of parallel capacitors and series microstrip lines. The radio frequency power amplifier has the advantages of being wide in working frequency band, high in efficiency, small in product size and the like, and can be better applied to the military electronic market.

Description

technical field [0001] The invention relates to a power amplifier, in particular to a broadband radio frequency power amplifier. Background technique [0002] The RF power amplifier is an important part of the transmitter in the wireless communication system. The pre-stage signal is passed through a series of buffer stages, intermediate amplification stages, and final power amplification stages. After obtaining enough RF power, the signal is radiated through the antenna. For RF power amplifiers used in high frequency bands, the main technical indicators include output power, power added efficiency (PAE), bandwidth and harmonic suppression. It is usually hoped that the RF power amplifier covers a wide operating frequency band to obtain better In addition, the harmonic components in the output should be as small as possible to avoid interference with other channels. [0003] Due to the relatively high design difficulty of high-frequency amplifiers, the current high-frequency ...

Claims

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Application Information

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IPC IPC(8): H03F1/02H03F1/42H03F1/56H03F3/19H03F3/21H03F3/24
CPCH03F1/0205H03F1/42H03F1/565H03F3/19H03F3/211H03F3/245Y02D30/70
Inventor 杨涛孙晓王沙飞杨健邵怀宗王勇李想齐亮
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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