Ultra-Broadband Filtering Power Divider Based on Step Impedance Multimode Resonator

Abstract

The invention discloses an ultra-broadband filter power divider based on a ladder impedance multimode resonator, and belongs to the technical field of basic electrical components. The ultra-wideband filter power divider is composed of an intermediate dielectric substrate, an upper microstrip structure arranged on the intermediate dielectric substrate, and a bottom metal floor, wherein the upper microstrip structure includes three input / output ports, two identically structured Ultra-wideband impedance converter, each ultra-wideband impedance converter is composed of a stepped impedance multimode resonator and a strong coupling structure at both ends. The asymmetrical structure of the width defect. The power distribution function is realized by connecting two ultra-wideband impedance converters with the same structure in parallel. This design is compact in structure, small in size, realized in the form of a microstrip circuit, and has ultra-wideband filtering and power distribution functions at the same time, and can be used for feeding networks of ultra-wideband array antennas, mobile communication indoor distribution systems and other ultra-wideband communication equipment systems .

Description

technical field [0001] The invention relates to a radio frequency power splitter in wireless communication, and specifically discloses an ultra-wideband filter power divider based on a stepped impedance multimode resonator. The power divider has the functions of ultra-wideband filtering and ultra-wideband power division at the same time, and belongs to basic electrical components technical field. Background technique [0002] UWB technology, which is widely used in various fields such as radio communication, radar, radio frequency tracking, and precise positioning, is not only a research hotspot for experts in the international communication field, but also regarded as one of the key technologies for future wireless communication. Ultra-wideband wireless communication technology was originally a pulse radio technology that directly used pulses with a pulse width of nanoseconds or sub-nanoseconds as information carriers, and was mainly used in radar and low-interception / low-d...

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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology, provide an ultra-wideband filter power divider based on a stepped impedance multimode resonator, an ultra-wideband filter impedance converter and an ultra-wideband filter power converter using a novel asymmetric strong coupling structure The divider realizes the ultra-wideband filtering function while realizing the ultra-wide bandwidth, which is especially suitable for the ultra-wideband communication system in the new short-distance wireless communication, and solves the problem of the existing ultra-wideband device with single function and narrow bandwidth and the existing ultra-wideband filter power division The technical problems of narrow bandwidth, large size and complex structure in the integrated design scheme

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