An On-Chip Fractally Chipped FBAR Filter With Ba-Zn-Fe-Sc-O Thin Film in 5G-FR2 Millimeter-Wave Band

Cao, Xin; Wang, Chenyi; Li, Weiping; Cai, Qiang‐Ming

doi:10.1109/led.2023.3250423

Cited by 13 publications

(3 citation statements)

References 15 publications

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“…Numerical simulation results confirm that our proposed algorithms have better filtering performance as compared to the existing SGCI-M-IPAPSA-type algorithms, with respect to the convergence rate with non-Gaussian impulsive interferences for sparse system identification, abrupt changes and colored inputs. Certainly, the core ideas of the proposed VSS ways not only enrich adaptive filter theory, but can also be applied to other algorithms and domains, such as echo cancellation application, machine learning and so on [1,12,18,[22][23][24][25][26][27][28][29][30].…”

Section: Discussionmentioning

confidence: 99%

Variable-Step-Size Efficient Proportionate Affine Projection Sign Algorithms

Li,

Zhou,

Cao

et al. 2023

Electronics

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For sparse system identification, a memory-improved proportionate affine projection sign algorithm with a simplified, generalized correntropy induced metric (SGCI-M-IPAPSA) has good filtering performance. However, the SGCI-M-IPAPSA is based on a fixed step size and is not always the best choice. To overcome the limitation of a fixed step size in filtering precision and convergence speed under non-Gaussian impulsive interferences, in this paper, we apply the combined-step-size idea and a variable-step-size method based on the mean-square deviation to the SGCI-M-IPAPSA, respectively, and propose two new robust algorithms to enhance the filtering performance of the SGCI-M-IPAPSA. In addition, by combining the combined-step-size and proposed variable-step-size methods, we propose a fresh combined variable-step-size way and apply it to the SGCI-M-IPAPSA. The convergence of the proposed algorithms is also elaborated, and a conditional decision on the mean-square error is used to cope with abrupt changes. The better performances of the proposed algorithms than the conventional SGCI-M-IPAPSA in terms of the filtering accuracy and convergence rate are demonstrated with non-Gaussian impulsive interferences for sparse system identification, abrupt changes and colored inputs.

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Section: Discussionmentioning

confidence: 99%

Variable-Step-Size Efficient Proportionate Affine Projection Sign Algorithms

Li,

Zhou,

Cao

et al. 2023

Electronics

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“…Of course, there are also many other methods applied to improve the robustness of adaptive filtering algorithms [7][8][9][10][11][12][13]. For satisfying the contradictory requirements between fast convergence speed and small steady-state misalignment, studies have used various methods to further improve the convergence speed and accuracy of APSA, such as various types of variable step, combined step methods [14][15][16][17][18][19][20][21], etc.…”

Section: Introductionmentioning

confidence: 99%

Variable Step Size Methods of the Hybrid Affine Projection Adaptive Filtering Algorithm under Symmetrical Non-Gaussian Noise

Zhou

Zhang

et al. 2023

Symmetry

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The idea of variable step-size was introduced into the Hybrid Affine Projection Algorithm (H-APA) and we propose two variable step size algorithms based on H-APA, which are called the Variable Step-Size Hybrid Affine Projection Algorithm (VSS-H-APA) and the Modified Variable Step-Size Hybrid Affine Projection Algorithm (MVSS-H-APA). These are two variable-step algorithms aim to further improve the robust performance and convergence speed of H-APA under non-Gaussian noise. This allows for faster convergence while maintaining stability. The MVSS-H-APA goes further than VSS-H-APA to estimate the noise in order to achieve better convergence performance. The proposed algorithm performs better than the existing algorithms in system identification under symmetric non-Gaussian noise.

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“…There are many technologies for designing UWB BPF, such as the combination of high-pass filter (HPF) and low-pass filter (LPF) [4]; Loading short-circuit stubs technology [5]; Microstrip coplanar waveguide (CPW) technology [6,7,8,9,10]; substrate integrated waveguide (SIW) technology [11,12,13,14,15,16,17] and Microstrip multimode resonator (MMR) technology [18,19,20,21,22,23,24,25,26,27,28], et al Among them, the technology of using microstrip MMR is the most convenient and widely used in recent years. However, MMR-based technology has a narrow upper stopband performance due to spurious harmonics above the desired frequency range.…”

Section: Introductionmentioning

confidence: 99%

A UWB bandpass filter based on elliptical open stub-loaded resonator and dumbbell-sided cross-circle DGS

Xia,

Wang,

Xia

et al. 2023

IEICE Electron. Express

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An Ultra-wideband (UWB) bandpass filter (BPF) based on an elliptical open stub-loaded resonator (EOSLR) and dumbbell-sided cross-circle (DSCC) defected ground structure (DGS) is proposed in this paper. The measured results show that the 3 dB bandwidth of the filter is 3.49 ~11.04 GHz, the skirt factor (S.F) is 0.844, the upper stopband rejection is greater than 20 d B at 11.70 ~26.80 GHz, and the stopband width is 15.1 GHz. The proposed filter has the advantages of high selectivity and extremely broad upper stopband and it can be applied in UWB Wireless communication system.

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An On-Chip Fractally Chipped FBAR Filter With Ba-Zn-Fe-Sc-O Thin Film in 5G-FR2 Millimeter-Wave Band

Cited by 13 publications

References 15 publications

Variable-Step-Size Efficient Proportionate Affine Projection Sign Algorithms

Variable-Step-Size Efficient Proportionate Affine Projection Sign Algorithms

Variable Step Size Methods of the Hybrid Affine Projection Adaptive Filtering Algorithm under Symmetrical Non-Gaussian Noise

A UWB bandpass filter based on elliptical open stub-loaded resonator and dumbbell-sided cross-circle DGS

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