Simulation Study of Ultra-compact Microstrip UWB Bandpass Filter with Wide Stopband Using DGS Based Lowpass Filter

被引：0

作者：

Sahu, Bhagirath ^{[1
]}

Singh, Soni ^{[1
]}

Meshram, Manoj Kumar ^{[1
]}

Singh, S. P. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Indian Inst Technol, Dept Elect Engn, Varanasi 221005, Uttar Pradesh, India

来源：

2017 IEEE MTT-S INTERNATIONAL MICROWAVE AND RF CONFERENCE (IMARC) | 2017年

关键词：

DGS based lowpass filter; equivalent circuit model; Ultra-compact; UWB bandpass filter; wide stopband;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An ultra-compact ultra-wideband (UWB) bandpass filter (BPF) with good selectivity and wide stopband is proposed in this paper. Use of modified multimode resonator results in small filter size of 14 mm x 5.9 mm, whereas U-shaped defected ground structure (UDGS) based lowpass filter (LPF) provides wide stopband. The LPF structure is designed using four non-uniform configurations of DGS units along with a 50 microstrip line. Each DGS unit is formed by cascading three isosceles UDGSs and analyzed in terms of an equivalent circuit model. The proposed filter has simulated passband (3-dB bandwidth) frequency range 3 - 11 GHz with wide stopband: attenuation better than 40 dB and 25 dB over the frequency ranges 11.7 - 20.5 GHz and 11.2 GHz - 30 GHz respectively.

引用

页码：219 / 222

页数：4

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