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Broadband high-power amplifier

A technology of a power amplifier tube and a power amplifier circuit, which is applied in the field of broadband high-power amplifiers, can solve the problems of low transmitter efficiency, complicated circuits, difficult heat dissipation processing, etc., achieves good power flatness, good frequency response characteristics, and is beneficial to cooling effect

Active Publication Date: 2014-05-07
武汉中元通信股份有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In the past, the bandwidth of communication equipment was narrow, and the power amplifier was relatively easy to implement; the power amplifier of wider-band communication equipment was also completed in a segmented manner. Inefficiency; how to achieve broadband coverage and meet the needs of high-power output broadband high-power amplifiers, which has become an important issue to be solved for the realization of broadband frequency hopping radio

Method used

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Embodiment Construction

[0029] see figure 1 and figure 2 Shown is a specific embodiment of the present invention.

[0030] combine figure 1 and figure 2 It can be seen that the present invention includes an input interface and a matching circuit 1, a power amplifier circuit 2, an output matching circuit and an interface 3, together with the module shell 4 to form a whole, wherein:

[0031] The input interface and matching circuit 1 further include a radio frequency input interface 1.1, a broadband radio frequency input matching circuit 1.2, a temperature compensation circuit U2, and a bias voltage controller U3; and the radio frequency input interface 1.1 is connected to the broadband radio frequency input matching circuit 1.2 through a capacitor C1 The first pin of the transmission line transformer T5 is connected; the second and fourth pins of the transmission line transformer T5 are respectively connected to the first pin of the transmission line transformer T6 and the third pin of T7 through...

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Abstract

The invention discloses a broadband high-power amplifier. The broadband high-power amplifier comprises an input interface and matching circuit 1, a power amplification circuit 2, an output matching circuit and interface 3 and a module shell 4 which are combined into a whole; the input interface and matching circuit comprises a radio-frequency input interface, a broadband radio-frequency input matching circuit, a bias control circuit U2 and a temperature-compensation circuit U3; the power amplification circuit comprises a power amplifying tube U1, a feedback circuit and a bias circuit; and the output matching circuit and interface comprises a broadband radio-frequency output matching circuit and a radio-frequency output interface. Through adopting a transmission line transformer matching network, good power flatness can be realized within five octaves of a working band; through adopting a negative feedback method, the linearity of the power amplifier is improved; and through adopting an integral structure, the radiating area of a module is expanded by using radiating ribs; and thus the broadband high-power amplifier is obtained. The broadband high-power amplifier has the characteristics of reasonable design, compact structure, clever installation, good stability, high reliability, and the like.

Description

technical field [0001] The invention relates to a power amplifier, in particular to a broadband high-power amplifier which can be used by a wireless broadband frequency-hopping communication station for on-line operation. Background technique [0002] Nowadays, with the opening of the telecommunication market and the continuous development of communication and information industry technology, wireless communication technology is particularly important as a means of exchanging information quickly. Moreover, people are no longer limited to narrowband single-band wireless communication devices, and more and more broadband wireless communication devices have been widely used in various fields, which can complete multiple frequency bands, multiple wireless networks, and wireless and wireless communications. Networking, data access, switching and routing functions between wired networks. [0003] As an important part of wireless communication equipment, power amplifier is one of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20H03H7/38
Inventor 严忠黄华东陈海军王昌平黄祥梅红波杨旭余华庆刘顺兴
Owner 武汉中元通信股份有限公司
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