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Novel dual-band Chireix power synthesis network and design method thereof

A design method and dual-band technology, applied in CAD circuit design, computer-aided design, calculation, etc., to achieve simple structure, reduce input impedance changes, and improve synthesis efficiency

Pending Publication Date: 2019-07-26
HANGZHOU DIANZI UNIV
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AI Technical Summary

Problems solved by technology

Among them, the synthesis network 3 adopts Chireix synthesizer, and its structure is composed of λ / 4 microstrip line and compensation reactance. It is a kind of out-of-phase synthesizer with good efficiency and linearity, but the traditional Chireix synthesizer can only use Power Combination at a Single Frequency Point

Method used

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  • Novel dual-band Chireix power synthesis network and design method thereof
  • Novel dual-band Chireix power synthesis network and design method thereof
  • Novel dual-band Chireix power synthesis network and design method thereof

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing.

[0034] Such as figure 2 As shown, the new dual-band Chireix power combining network includes a first band-pass filter and a second band-pass filter. The first bandpass filter includes a first phase compensation line Z1, a second phase compensation line Z6 and n first step impedance units connected in sequence, where n is an even number. The first step impedance unit includes a first low-impedance microstrip line and a first high-impedance microstrip line. The inner end of the first low-impedance microstrip line is connected to the inner end of the first high-impedance microstrip line. In the first bandpass filter, the outer end of the first high-impedance microstrip line in the previous first step impedance unit is connected to the outer end of the first low-impedance microstrip line in the second first step impedance unit. The outer termination of the first low-impedan...

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Abstract

The invention discloses a novel dual-band Chireix power synthesis network and a design method thereof. An existing Outphoning power amplification system can only realize high-efficiency power synthesis at a single frequency point. The network comprises a first band-pass filter and a second band-pass filter. The first band-pass filter comprises a first phase compensation line, a second phase compensation line and n first step impedance units which are sequentially connected. The first phase compensation line and the second phase compensation line are located at the two ends of the n first stepimpedance units respectively. The second band-pass filter comprises a third phase compensation line, a fourth phase compensation line and n second step impedance units which are sequentially connected. The third phase compensation line and the fourth phase compensation line are located at the two ends of the n first step impedance units respectively. The other ends of the second phase compensationline and the fourth phase compensation line are connected together. According to the invention, high-efficiency power synthesis can be realized under double frequency points.

Description

technical field [0001] The invention belongs to the technical field of radio frequency power amplifiers, and in particular relates to a novel dual-band Chireix power combining network and a design method thereof. Background technique [0002] In recent years, wireless communication technology has been greatly developed, and the modulation methods are becoming more and more complex. The power amplifier, as the final module in the transmitter, is the component with the largest power consumption in the entire radio frequency system. Its main function is to amplify the power of the signal output by the previous stage, and then send the amplified signal to the antenna for transmission. Due to the change of the transmission mechanism and the increase of the transmission distance, the ability of the power amplifier to output high enough power and have a high enough efficiency has become the main technical index pursued at present, and the linearity is also a key index of the power ...

Claims

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Application Information

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IPC IPC(8): G06F17/50H03F3/195H03F3/213
CPCH03F3/213H03F3/195H03F2200/451G06F30/36
Inventor 程知群朱怡超刘国华陈艺
Owner HANGZHOU DIANZI UNIV
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