Multi-peak miniaturized micro-strip equalizer with adjustable equalization quantity and monotonicity

Abstract

The invention discloses a multi-peak miniaturized micro-strip equalizer with adjustable equalization quantity and monotonicity. The multi-peak miniaturized micro-strip equalizer comprises a microwave printed board, an input and output micro-strip line, an impedance matching transmission line, a high impedance line, a first low impedance line, a second low impedance line, a first resistor, a second resistor, an adjustable branch line and a gold wire for bonding, the multi-peak miniaturized micro-strip equalizer has the advantages that the purpose of adjusting the balance quantity is achieved, more reasonable compensation correction can be carried out according to the actually needed balance quantity, and microwave signals with better in-band flatness are obtained.

Description

technical field [0001] The invention relates to an equalizer, in particular to a miniaturized multi-peak microstrip equalizer with adjustable equalization amount and monotonicity, which belongs to the field of equalizers. Background technique [0002] During the transmission of broadband microwave signals, due to the influence of devices, transmission lines, etc., the amplitude values ​​of different frequencies will change inconsistently, and amplitude distortion will occur, which will lead to the deterioration of signal flatness in the passband. In order to correct amplitude distortion, in the prior art, an equalizer is usually used for amplitude correction. In the prior art, amplitude equalizers are implemented in a monotonically increasing or monotonically decreasing manner, and the technology is relatively mature and reliable. It is mainly used for broadband microwave signals with monotonically increasing or monotonically decreasing characteristics in the passband. But ...

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Problems solved by technology

But in practice, such monotonically increasing or decreasing monotonically only occurs in broadband microwave signals at the device level. In components, modules, or even machine-level products, multi-level cascading matching problems often result in Broadband microwave signals are distorted, and some signals appear in a "V" shape, an inverted "V" shape or even a wave shape in the passband. This is the actual situation that is often encountered in products.

In view of the above situation, if the existing monotonically increasing or decreasing equalizer in the passband is still used, the gain flatness can only be roughly improved, and better compensation and correction for multiple amplitude distortions in the passband cannot be performed. The further improvement of the flatness index of the microwave signal in the passband

[0003] Secondly, limited by the existing technology, in view of multiple amplitude distortions that may appear in the passband, the existing technology lacks a technology that can control the number of amplitude distortions in the passband, and does not have the ability to design arbitrary multi-peak equalization

[0004] Thirdly, the equalizers in the prior art generally have a fixed equalization amount, and the compensation is often insufficient or over-compensated, and the equalization amount cannot be adjusted according to the actual situation.

[0005] Finally, in the prior art, the size of the microstrip equalizer is generally too large, which brings resistance to the miniaturization design of the product

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