Broadband high-pass phase regulator

Abstract

The invention relates to a broadband high-pass phase adjuster in the field of electronic technology, wherein: the second microstrip line is connected to the input end, and the other end of the second microstrip line is respectively connected to the anode of the second varactor diode and one end of the fourth microstrip line connection, the other end of the fourth microstrip line is grounded, the cathode of the second varactor diode is respectively connected to the cathode of another first varactor diode and one end of a first microstrip line, the first varactor diode and the second varactor diode The diodes are connected back to back, the first microstrip line is connected to the DC power supply and one end of the two capacitors, the other end of the two capacitors is grounded, and the anode of the first varactor diode is connected to the third microstrip line and the fifth microstrip line respectively. One end of the line is connected, the other end of the fifth microstrip line is grounded, and the other end of the third microstrip line is connected to the output. The invention has a simple structure, is easy to implement, can obtain relatively wide-band frequency response and relatively large phase adjustment degree, and can be applied to wide-band voltage-controlled oscillators and power amplifiers.

Description

technical field [0001] The invention relates to a phase adjuster in the field of electronic technology, in particular to a broadband high-pass phase adjuster. Background technique [0002] With the development of radio frequency and microwave integrated circuits and systems, phase regulators are widely used in various radio frequency circuit systems, such as voltage-controlled oscillators and power amplifiers. In the communication system, due to the wide use of the phase-locked loop circuit, the frequency in the system is required to be tuned, so the phase adjuster is widely used in the voltage-controlled oscillator, and the phase in the oscillator can be effectively adjusted by changing the voltage, thereby To achieve the purpose of adjustable narrowband frequency, and this method will not reduce the phase noise. [0003] After searching the literature of the prior art, it was found that Yong-Sheng Dai et al. published in "IEEE Microwave and Wireless Components Letters", (...

AI Technical Summary

Problems solved by technology

Its disadvantage is that although this design method increases the bandwidth of the phase adjuster to a certain extent and improves its tunable range, its loss also increases correspondingly, which is about 2.5-3.5dB; in addition, due to the lack of research and design methods Certainty and particularity, this method is difficult to form a certain design rule, and the circuit is relatively complicated, so it is difficult to implement

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