一種新型一維周期DGS單元結(jié)構(gòu)特性研究
Characteristic Research of the Novel 1-D Periodic Defected Ground Structure
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摘要: 該文設計了一種新型一維周期地面缺陷(Defected Ground Structure, DGS)單元結(jié)構(gòu)，該DGS單元結(jié)構(gòu)提高了等效電感。增加的等效電感可以容易控制DGS平面電路的截止頻率特性。設計的周期DGS單元結(jié)構(gòu)有非常好的截止和帶阻特性。為了顯示改進的等效電感，該文設計了3個周期相同而單元尺寸不同的DGS電路。DGS電路的測試結(jié)果顯示截止和帶阻的中心頻率特性由該DGS單元結(jié)構(gòu)的物理尺寸決定。
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關(guān)鍵詞:
- 地面缺陷結(jié)構(gòu);截止頻率;帶阻;光子帶隙
Abstract: A new onedimensional periodic defected ground unit structure is proposed in order to improve the effective inductance. Increasing the effective inductance makes it easy to control the cutoff frequency characteristics of the DGS planar circuits. The proposed period Defected Ground Structure (DGS) provides the excellent cutoff and stopband characteristics. In order to show the improved effective inductance, three DGS circuits are fabricated with identical period and different dimensions. Measurements on the fabricated DGS circuits show that the cutoff and stopband center frequency characteristics depend on the physical dimension of the proposed unit lattice. -
Kesler M P, Maloney J G, Shirley B L, et al.. Antenna design with the use of photonic bandgap material as all dielectric planar reflectors[J].Microwave Opt Tech Lett.1996, 11(4):169-3.0.CO;2-I' target='_blank'>[4]Radisic V, Qian Y, Coccioli R, et al.. Novel 2-D photonic bandgap structure for microstrip lines[J].IEEE Microwave Guided Wave Lett.1998, 8(2):69-[7]Kim Chul-Soo, Park Jun-Seok, Ahn Dal, et al.. A novel 1-D periodic defected ground structure for planar circuits[J].IEEE Microwave and Guided Wave Lett.2000, 10(4):131- -
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