scholarly journals Triple Notches Bandstop Microstrip Filter Based on Archimedean Spiral Electromagnetic Bandgap Structure

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 964 ◽  
Author(s):  
Xuemei Zheng ◽  
Tao Jiang
Keyword(s):  
Lumped Parameter Model ◽  
Ultra Wideband ◽  
Design System ◽  
Electromagnetic Bandgap ◽  
Archimedean Spiral ◽  
Microstrip Filter ◽  
High Frequency Structure Simulator ◽  
Lumped Parameter ◽  
Microstrip Filters ◽  
Electromagnetic Bandgap Structure

With the development of artificial electromagnetic structures, defective grounding structures (DGS), defective microstrip structures (DMS), and electromagnetic bandgap (EBG) have been widely used in the design of microstrip filters. In this paper, a triple notches ultra wideband bandstop microstrip filter based on Archimedean spiral electromagnetic bandgap structure (ASEBG) structure is proposed. Firstly, the equivalent circuit of ASEBG is analyzed, and L and C values are extracted by using Advanced Design System (ADS). Secondly, the correctness of the lumped parameter model is verified by comparing the High Frequency Structure Simulator (HFSS) simulation results with the measured results. Finally, the influence of ASEBG structure parameters on resonant performance is analyzed by HFSS simulation, and the filter parameters are further optimized. By coupling ASEBG structure to existing double notch microstrip filters, a triple notches ultra wideband bandstop microstrip filter is realized. This method can also be used in the design of other microstrip devices with stopband characteristics. The three bandgap center frequencies of the proposed triple notches ultra wideband bandstop microstrip filter are 3.5, 5.2, and 7.4 GHz, respectively. The corresponding maximum attenuation of the three stopbands is 33.6, 24.8, and 21.7 dB, respectively.

Electromagnetic Bandgap Structure by Low Temperature Co-Fired Ceramics Technology

2011 ◽  
Vol 287-290 ◽  
pp. 377-381
Author(s):  
Xiao Qing Zhang ◽  
Bo Li ◽  
Xin Feng Pang ◽  
Jing Bo Sun ◽  
Jun Wu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ultra Wideband ◽  
Network Analyzer ◽  
Micro Structure ◽  
Electromagnetic Bandgap ◽  
High Impedance ◽  
The Matrix ◽  
High Impedance Surface ◽  
Scanning Electron ◽  
Electromagnetic Bandgap Structure

A EBG（Electromagnetic Bandgap） structure was prepared based on the theory of the high impedance surface photonic crystal and the HFSS emulating results. The measurement result showed that the bandgap of the EBG structure was in the Ultra Wideband range. The designed structure was fabricated by a method of low temperature co-fired ceramics technology（LTCC） using ceramics as the matrix and silver as the coils. The micro-structure was analyzed by microscope and scanning electron microscope which showed that these two kinds of materials were well connected. A bandgap between 4GHz~5.5GHz was found by the Vector Network Analyzer which was accord to the emulation.

Switchable and Tunable Notch in Ultra-Wideband Filter Using Electromagnetic Bandgap Structure

2014 ◽  
Vol 24 (12) ◽  
pp. 839-841 ◽  
Author(s):  
Lalithendra Kurra ◽  
Mahesh P. Abegaonkar ◽  
Ananjan Basu ◽  
Shiban K. Koul
Keyword(s):  
Ultra Wideband ◽  
Electromagnetic Bandgap ◽  
Electromagnetic Bandgap Structure

scholarly journals MINIATURIZED NOTCHED ULTRA-WIDEBAND ANTENNA BASED ON EBG ELECTROMAGNETIC BANDGAP STRUCTURE

2020 ◽  
Vol 91 ◽  
pp. 99-107
Author(s):  
Liang Zhang ◽  
Shijie Huang ◽  
Zhi-Xiang Huang ◽  
Changqing Liu ◽  
Chao Wang ◽  
...  
Keyword(s):  
Ultra Wideband ◽  
Electromagnetic Bandgap ◽  
Wideband Antenna ◽  
Electromagnetic Bandgap Structure

Microstrip filter with defected ground structure: a close perspective

2013 ◽  
Vol 5 (5) ◽  
pp. 589-602 ◽  
Author(s):  
Arjun Kumar ◽  
Kartikeyan V. Machavaram
Keyword(s):  
Performance Enhancement ◽  
Detailed Account ◽  
Defected Ground Structure ◽  
Electromagnetic Bandgap ◽  
Ground Structure ◽  
Microstrip Filter ◽  
Comprehensive Review ◽  
Microstrip Filters ◽  
Microwave Components

This paper presents a close but a beginner's perspective and a comprehensive review of microstrip filters with defected ground structure (DGS). The concept of DGS is inspired by photonic/electromagnetic bandgap structures (EBG/PBG) and metamaterials that are employed in microwave components to achieve a variety of performance enhancement features. Modeling of DGS and metamaterials as an L-C equivalent lumped circuit is much simpler in comparison with complex EBGs/PBGs. In this review, we have given a detailed account of the microstrip filters using DGS.

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