Two-Cascade Modal Filters Based on Modified Microstrip Lines with Grounded Conductors at the Ends

被引：0
|
作者：
Sagiyeva, Indira Y. [1 ]
Gazizov, Talgat R. [1 ]
Zhechev, Yevgeniy S. [1 ]
机构：
[1] Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
来源：
Electrica | 2025年 / 25卷 / 01期
关键词：
Bandpass filters - Electric grounding - Electric network analysis;
D O I：
10.5152/electrica.2025.24149
中图分类号：
学科分类号：
摘要：
In this paper, two-cascade connections of three modal filters (MFs) were investigated based on modified microstrip lines (MSLs) with conductors grounded at the ends. It is an MSL with grounded conductors: one top, two symmetrical top, and two side conductors. The study included simulations in the TUSUR.EMC (TALGAT) software based on transmission line analysis and experimental validation using a P4M-18 MICRAN vector network analyzer. The results demonstrated that, due to a two-cascade connection, all three MFs can attenuate the ultrashort pulse (USP) impact by four times by decomposing it into four pulses with small amplitudes. By contrast, a one-cascade connection allows for the pulse attenuation by two times by decomposing the USP into two pulses. Meanwhile, the cross-section parameters and total length can be the same for both one-cascade and two-cascade MFs. Thus, modification by cascade connection can cost-effectively improve the protective properties of MFs against USPs. Index Terms— Modal filter, microstrip line (MSL), time response, ultrashort pulse (USP) © 2025 Istanbul University. All rights reserved.
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