Balanced-unbalanced in-phase filtering power divider based on three-wire coupling
A three-wire coupling and unbalanced technology, which is applied in the direction of waveguide devices, electrical components, connecting devices, etc., can solve the problems of good port matching characteristics, unfavorable promotion and application, small phase deviation, etc., and achieve good balance characteristics, wide application range, highly selective effect
Active Publication Date: 2022-01-21
西安华企众信科技发展有限公司
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[0006] In short, the existing problems in the prior art are: the balanced-unbalanced in-phase filter power splitter cannot take into account simple structure, high selectivity, good port matching characteristics, small phase deviation, high isolation, and good common-mode rejection, which is not conducive to Popularization and Application of Modern Wireless Communication System
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[0032] The present invention is described in further detail now in conjunction with accompanying drawing.
[0033] combine figure 1 , 2As shown, a balanced-unbalanced in-phase filter power divider based on three-wire coupling proposed by the present invention includes a dielectric substrate 7 with a metal ground plate 8 on the lower surface, and a first input port on the upper surface of the dielectric substrate 7. Feeder 1, second input port feeder 2, stub loaded resonator 3, first output port feeder 4, second output port feeder 5, jumper resistor 6;
[0034] The input end of the first input port feeder 1 is located on the longest side of the dielectric substrate 7, the input end of the second input port feeder 2 is located on the short side adjacent to the longest side in the dielectric substrate 7, and the output of the first output port feeder 4 The end is located on the second longest side of the dielectric substrate 7, the second longest side is adjacent to the longest...
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The invention relates to a balanced-unbalanced in-phase filtering power divider based on three-wire coupling, which comprises a dielectric substrate, the lower surface of the dielectric substrate is provided with a metal grounding plate, and the upper surface of the dielectric substrate is provided with a first input port feeder line, a second input port feeder line, a branch loading resonator, a first output port feeder line, a second output port feeder line and a jumper resistor; during working, differential signals enter from the first input port feeder line and the second input port feeder line, are superposed and coupled to the branch loading resonator to generate resonance, and are output through the first output port feeder line and the second output port feeder line after resonance, and common-mode signals enter from the first input port feeder line and the second input port feeder line to generate common-mode signals. After equal-amplitude reverse-phase superposition, zero is generated, and the branch loading resonator cannot be excited, so that common-mode rejection is realized. The power divider is simple in structure, high in selectivity, good in port matching characteristic, small in phase deviation, high in isolation degree and good in common-mode rejection.
Description
technical field [0001] The invention belongs to the technical field of microwave passive devices, and in particular relates to a balanced-unbalanced in-phase filter power divider based on three-wire coupling. Background technique [0002] In recent years, modern wireless communication systems have flourished, increasing the demand for miniaturized, low-cost, and multifunctional microwave devices. Among them, the balanced-unbalanced filter power divider, as a multifunctional device integrating signal filtering, power distribution, port isolation, and balanced and unbalanced signal conversion, has attracted more and more attention. The high-performance balanced-unbalanced filter power divider can not only effectively reduce the size of the system, but also simplify the complexity of system design, thereby further realizing the low-cost, high-performance, and miniaturized design of the wireless communication system. [0003] Literature 1 (Y.Wu, Z.Zhuang, L.Jiao and Y.Liu, "A n...
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IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 王雪道房玉琢
Owner 西安华企众信科技发展有限公司