摘要: |
提出了一种新型Koch型缺陷地面结构(KDGS),设计了两款基于分形缺陷地
面结构的低通滤波器。仿真结果表明:所设计的两种新型低通滤波器3 dB截止频率分别
为3.10 GHz和3.20 GHz,10 dB阻带带宽分别为8.75 GHz和12.25 GHz
,通带插入损耗均小于0.10 dB。该滤波器设计方法简单,性能好且成本低,在无线通
信中很有应用前景。 |
关键词: 无线通信 低通滤波器 Koch型缺陷地面结构(KDGS) |
DOI: |
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基金项目:国家自然科学基金资助项目(60971118) |
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Design of Low Pass Filters Based on Koch shaped Defected Ground Structure |
LI Dong-wei,LI Tian-peng,WAN Peng-fei |
(The Missile Institute, Air Force Engineering University,Sanyuan 713800,China) |
Abstract: |
A Koch-shaped defected ground structure(KDGS) is proposed and tw
o low pass filters based on KDGS are designed. Simulation results indicate that
the 3 dB cut-off frequency of the designed filters is 3.10 GHz and 3.2
0
GHz, and th
e 10 dB bandwidth(insertion loss) 8.75 GHz and 12.25 GHz, respectiv
ely,their inse
rtion loss is smaller than 0.10 dB.The design of the proposed filte
r is simple,and it is featured by good capability and low cost.It will find wide
application in wireless communications. |
Key words: wireless communication low pass filiter Koch shaped defected ground structure(KDGS) |