A novel cross-shape DGS applied to design ultra-wide stopband low-pass filters

Chen, Han-Jan; Huang, Tsung-Hui; Chang, Chin-Sheng; Chen, Lih-Shan; Wang, Na-Fu; Wang, Yeong-Her; Houng, Mau–Phon

doi:10.1109/lmwc.2006.873594

Cited by 102 publications

(6 citation statements)

References 10 publications

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“…Hidden layer Output layer 2,3,4,5). Through analyzing transmission characteristic of PDGS with defected rectangles, it is obvious that they have excellent filter characteristic within the frequency band 3~7GHz, nevertheless their filter characteristic is flat comparatively without the frequency band 3~7GHz.…”

Section: Input Layermentioning

confidence: 99%

RBF model of microwave filter using PDGS with defected rectangles

Jin

Yao

et al. 2010

2010 Sixth International Conference on Natural Computation

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Microwave filter is the kind of device which can separate different signals within a certain band of microwave frequency, widely used in microwave communication system. Periodic defected ground structures (PDGS) with defected rectangles have excellent filter properties when periodic unit amounts and structure sizes meet appropriate conditions. According to artificial neural network (ANN) theory, radial basis function (RBF) model of PDGS with etched rectangles is developed for the first time on the basis of FDTD analysis in this paper. Periodic unit amounts, the structure sizes of PDGS and the frequency are defined as the input samples of the RBF, transmission coefficient (S21) are defined as the output samples. Transmission coefficient of PDGS at any arbitrary parameters including periodic unit amounts, structure sizes and frequency within training values range can be obtained quickly from RBF model after the RBF has been successfully trained with improved Gaussian algorithm. Finally, RBF model has been approved by FDTD results. It is also showed that RBF model is very effective, which will provide powerful approach for the precise analysis and quick design of microwave filter using PDGS with defected rectangles.

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Section: Input Layermentioning

confidence: 99%

RBF model of microwave filter using PDGS with defected rectangles

Jin

Yao

et al. 2010

2010 Sixth International Conference on Natural Computation

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“…The combination of FSS wall and the slots result in a very low mutual coupling of -30 dB. A new low pass filter with a wide stop-band made up of a Cross Shape Defected Ground Structure (CSDGS) was presented in [8], attaining a 20-dB isolation for the frequency range of 4.25-15.9 GHz. Another method proposed for reducing mutual coupling is using a complementary splitring resonator (CSRR) at 25 GHz frequency [5], achieving -55dB isolation between the array elements.…”

Section: Introductionmentioning

confidence: 99%

“…It was noted that as long as the area of different shapes of EBGs remains identical, their performance remains similar. Mushroom type structure having vias between the ground plane and the patch can reduce mutual coupling between array elements if placed in between or surrounded by antenna elements [8]. Uni-planer compact EBG structures without vias that are easy to fabricate are also being used for increasing isolation among array elements [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Reduction Using Ground Stub and EBG in a Compact Wideband MIMO-Antenna

et al. 2021

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“…Recently, various shapes of defective ground structures (DGS) such as the "U", "V", "H", rectangular, square, circular, ring and dumbbell shape [25][26][27][28] have been investigated to design the wideband filter without adding any complexity to the original structure. Some complex shapes have also been studied, which include meander lines [29].…”

Section: Introductionmentioning

confidence: 99%

A Novel Meander Split Power/Ground Plane Reducing Crosstalk of Traces Crossing Over

Lee

2019

Electronics

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In this paper, a novel meander split power/ground plane is proposed for reducing crosstalk between parallel lines crossing over it. The working mechanism of the meander split scheme is investigated by simulations and measurements. The LC equivalent circuit and transmission line model are developed for modeling interactions between the meander split and the signal lines. The proposed meander structure enhances electromagnetic coupling between split planes. The capacitive coupling across the split ensures signal integrity and magnetic coupling between adjacent finger shaped structures suppresses lateral wave propagation along the split gap, which in turn helps suppress the crosstalk. The effectiveness of the meander split remains valid over very wide frequency ranges (up to 9 GHz). Experimental results show that the proposed structure improves the signal quality and reduces the near/far end crosstalk over 30 dB and 50% in the frequency domain and time domain, respectively.

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A novel cross-shape DGS applied to design ultra-wide stopband low-pass filters

Cited by 102 publications

References 10 publications

RBF model of microwave filter using PDGS with defected rectangles

RBF model of microwave filter using PDGS with defected rectangles

Mutual Coupling Reduction Using Ground Stub and EBG in a Compact Wideband MIMO-Antenna

A Novel Meander Split Power/Ground Plane Reducing Crosstalk of Traces Crossing Over

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