Wide Stopband Lowpass Filter Based On Defected Microstrip Structure

被引：0
|
作者：
Yuan Weiqing [1 ]
Song Shuxiang [1 ]
Cheng Yang [1 ]
Xie Lina [1 ]
Zhang Yonggan [1 ]
机构：
[1] Guangxi Normal Univ, Coll Elect Engn, Guilin 541004, Peoples R China
来源：
2017 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ISPACS 2017) | 2017年
基金：
中国国家自然科学基金;
关键词：
lowpass filter; wide stopband; defected microstrip structure;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A microstrip low pass filter based on the defected microstrip structure with sharp roll-off characteristics and wide stopband is proposed. The filter is composed of S-shaped and H-shaped slots. Based on the proposed structure, a lowpass filter with a 3dB cutoff frequency at 4.05GHz, a simple structure, a compact size and a sharp transition band is designed. The passband insertion loss is less than 0.3dB, the stopband width is 15.7GHz, and the roll-off rate is 81dB/GHz. Both the simulation and the experimental results are provided which have good agreement, and the circuit only occupies 23 x 5 mm(2).
引用
收藏
页码：366 / 369
页数：4
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