Novel high-selectivity ultra wide band band-pass filter

A band-pass filter, high-selectivity technology, used in waveguide-type devices, resonators, electrical components, etc., to achieve the effects of simple design, convenient processing, and low cost
CN106876831AInactive Publication Date: 2017-06-20HARBIN FEIYU TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN FEIYU TECH
Publication Date
2017-06-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A novel high-selectivity ultra wide band band-pass filter disclosed by the present invention is composed of an open circuit stub structure (3), 50-Ohm stub microstrip structures and a metal grounding plate which is on the lower surface of a dielectric slab and is equipped with a dumbbell-shaped groove. The novel high-selectivity ultra wide band band-pass filter of the present invention utilizes an intersected coupling structure composed of three 50-Ohm transmission microstrip lines to realize the ultra wide band, has very small return loss and insertion loss and the good low-frequency characteristic and the harmonic suppression performance, is simple in design, compact in structure, beautiful in appearance and low in cost, is convenient to process, and can realize the ultra wide band of 3.1-10.6 GHz.
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Description

technical field

[0001] The invention relates to a novel high-selectivity ultra-wideband bandpass filter, which can realize ultra-wideband in the 3.1-10.6GHz frequency band. Background technique

[0002] UWB technology appeared in the late 1950s and was mainly used in military radars and communication systems with low intercept rates until the 1990s. In recent years, with the development of microelectronic device technology and technology, UWB technology has only begun to be gradually applied in the civilian field. On February 14, 2002, ultra-wideband wireless technology was first approved by the FCC of the Federal Communications Commission of the United States and can be used in short-distance wireless communications. This opened the door for the commercial application of ultra-wideband technology products and promoted ultra-wideband systems and Its devices such as: UWB filter, UWB antenna, UWB amplifier and other research progress.

[0003] UWB technology can be applied i...

Claims

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