S-waveband micro-strip anti-phase smoothing power divider

Abstract

The invention relates to an S-waveband micro-strip anti-phase smoothing power divider which comprises four resonators and loads. The coupling coefficient between the first resonator and a source in front of the first resonator is m'S1=1.11, the coupling coefficient between the first resonator and the second resonator is m'12=1.064, the absolute value of the coupling coefficient m'23 between the second resonator and the third resonator is the same as the absolute value of the coupling coefficient m'24 between the second resonator and the fourth resonator, please see the formula in the specification, in other words, absolute values of power distribution branch coupling coefficients are the same, the power distribution branch coupling coefficients are half of the square roots of two times coupling coefficients of the resonators in corresponding filters, the coupling coefficient m'3L1 between the third resonator and the first load L1 is the same as the coupling coefficient M'4L2 between the fourth resonator (4) and the second load L2, m'3L1=M'4L2=1.11, and a coupling coefficient matrix of the smoothing power divider can be accordingly obtained. By means of the anti-phase smoothing power divider, equal distribution of output port power can be achieved, phases of output signals can be opposite, the S-waveband micro-strip anti-phase smoothing power divider is suitable for application occasions needing anti-phase feedback or anti-phase signals, and meanwhile the good inhibiting ability on out-band signals is achieved.

Description

technical field [0001] The invention relates to the field of information detection, in particular to an S-band microstrip inverting filter power divider. Background technique [0002] Microwave power dividers are widely used in antenna arrays and power systems. There are many studies on microwave power splitters; a common microwave power splitter is the Wilkinson power splitter, which uses impedance transformation lines to ensure that the characteristic impedance of each port is the same. [0003] However, it is difficult for this power divider to achieve good suppression of signals outside the working frequency band; in addition, in some occasions, output inversion is required, and it is difficult for this power divider to achieve inverting output. [0004] In view of the above-mentioned defects, the author of the present invention has finally obtained this creation through long-term research and practice. Contents of the invention [0005] The object of the present inv...

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Problems solved by technology

[0003] However, it is difficult for this power divider to achieve good suppression of signals outside the working frequency band; in addition, in some occasions, output inversion is required, and it is difficult for this power divider to achieve inverting output

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