Qingdao Haier Electronics Co., Ltd.

Qindao Haier Electronics Co., Ltd.

Haier Group Corporation

Yili Zhai

Chao Liu

Shuai Wang

Xijia Hu

Yilong Chen

Ling Wang

Biao Peng

Jianwei Guo

Shufang Li

Long Chen

Chao Wang

Xijuan Gao

Ying Chen

Zida Yu

Ming Zhang

Quanyong Li

Yanqiang Qiu

The present invention discloses a four-mode defected ground structure resonator, comprising a metal dielectric substrate and a defected ground unit which is etched in one surface of the metal dielectric substrate; the shape of the defected ground unit is axially symmetric about a first central axis of the defected ground unit, and also the shape of the defected ground unit is axially symmetric about a second central axis of the defected ground unit; the first defected ground unit is provided with H-shape or quasi H-shape, the second defected ground unit is provided with L-shape, quasi L-shape, U-shape or quasi U-shape. The four-mode defected ground structure resonator of the present invention is provided with four types of resonant modes, and the four types of resonant modes are provided with good tunability.

Four-mode defected ground structure resonator

Disclosed is a four-mode defected ground structure filter, including a four-mode defected ground structure resonator and two microstrip feed lines. The four-mode defected ground structure resonator comprises a metal dielectric substrate and a defected ground unit which is etched in one surface of the metal dielectric substrate; the microstrip feed lines are arranged at another surface of the metal dielectric substrate; shape of the defected ground unit is axially symmetric about a first central axis of the defected ground unit, and is axially symmetric about a second central axis of the defected ground unit; the first defected ground unit is provided with H-shape or quasi H-shape, the second defected ground unit is provided with L-shape, quasi L-shape, U-shape or quasi U-shape.

Four-mode defected ground structure filter

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Shandong, China

Yili Zhai