A novel dual-band bandpass SIW filter loaded with modified dual-CSRRs and Z-shaped slot

Yin, Bo; Lin, Zhangyao

doi:10.1016/j.aeue.2020.153261

Cited by 16 publications

(8 citation statements)

References 6 publications

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“…Both the split-ring resonator (SRR), originally proposed by Pendry et al [1], and the complementary split-ring resonator (CSRR), originally proposed by Falcone et al [2], have attracted great interest among researchers. Various circuit prototypes of SRRs and CSRRs have been extensively elaborated and developed for applications such as multiband microwave applications [3][4][5], sensing applications [6][7][8], and microwave filters [9][10][11][12][13][14][15][16][17]. With the increasing development of multi-functional and multi-standard communication systems, there is a growing demand for high-performance and miniaturized dual-band filters in microwave systems.…”

Section: Introductionmentioning

confidence: 99%

Generative Model for Dual-Band Filters Based on Modified Complementary Split-Ring Resonators

Zhang,

Xu,

Zhang

2024

Electronics

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This article presents a generative model for the inverse design of dual-band filters based on a type of modified complementary split-ring resonator (CSRR). It consists of a series of convolutional neural networks that incorporate the conditional deep convolutional generative adversarial network (GAN) technique. The filters are designed by etching the modified CSRRs on the surface of substrate-integrated waveguides. This design allows us to achieve two passbands with a compact size. In this GAN-based generative model, the CSRRs are represented as two-dimensional matrices. Each matrix corresponds to a training sample of the designed filter, and its S-parameters are extracted through an HFSS simulation. Both the matrices and the S-parameters are fed into the model as the training datasets. Different CSRRs with various sizes are employed for a wider applicable frequency band. Normalized matrices and normalized S-parameters are utilized to simplify the complex generative model resulting from the variations in CSRR sizes. The effectiveness of the generative model is validated through four design examples of dual-band filters, with their center frequencies located within 5 to 18 GHz. The inference time for each design is approximately 18.5 min. The measurement results of the fabricated filters are in good agreement with the simulation ones.

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Section: Introductionmentioning

confidence: 99%

Generative Model for Dual-Band Filters Based on Modified Complementary Split-Ring Resonators

Zhang,

Xu,

Zhang

2024

Electronics

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“…Also, various types of metamaterial bandpass filters have been presented utilizing a CSRR and liquid crystal materials [13], folded coupled stepped impedance resonator (SIR) pairs and a CSRR [14], short-circuited stubs and a complementary spiral resonator (CSR) [15], and a multi-mode resonator (MMR) in combination with SRRs [16]. In recent years, dual-band bandpass filters incorporating different configurations of SRRs and CSRRs have been reported [17][18][19][20][21]. In [17], a dual-band bandpass filter has been proposed by placing two dual-CSRRs face-to-face on the top side of a substrate integrated waveguide (SIW).…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, dual-band bandpass filters incorporating different configurations of SRRs and CSRRs have been reported [17][18][19][20][21]. In [17], a dual-band bandpass filter has been proposed by placing two dual-CSRRs face-to-face on the top side of a substrate integrated waveguide (SIW). In addition, a dual-band bandpass filter has been studied and designed by loading a hexagonal stepped impedance split ring resonator and a grounding via in microstrip line [18].…”

Section: Introductionmentioning

confidence: 99%

Realization of a novel dual-band bandpass filter with coupled series gaps and stepped impedance complementary split ring resonators

Beiki

Hosseinipanah²,

Kashani

2023

J. Inst.

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In this article, a bandpass filter (BPF) is proposed by etching stepped impedance complementary split ring resonators (SICSRRs) pairs in parallel with series gaps on the top side of a coplanar waveguide (CPW). The Nicolson-Ross-Weir (NRW) method is used to analyze the left-handed (LH) behavior of the filter. The effects of the resonators parameters on the left-handed BPF are studied. The parameters and number of the resonators are adjusted properly to obtain the desired filter characteristics. Split ring resonators (SRRs) are magnetically coupled to the BPF to realize a novel left-handed dual-band bandpass filter. Besides, The dual-band filter is described by means of the lumped-element equivalent circuit model. Also, the quasi-static analysis is used to obtain the equations for the resonant frequencies of the resonators. The efficient electrical size of the dual-band filter is 0.51λg × 0.42λg where λg represents the guided wavelength at the first passband center frequency. The prototype of the compact dual-band BPF is fabricated and measured. The measured results reveal low insertion loss and high return loss at the passbands along with wide upper stopband attenuation. The measured result is in a good agreement with the corresponding simulation result.

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“…These are the common substrate used in the microstrip antenna based on the previous study. The most preferable is FR4 [15]- [18], then follow with RT5880 [19]- [21], RO4003C [22], [23] and F4B. The others substrate such as F4B [24], RO5870 [25], RT 6010 [26], RO3003, RO3010 [27], and RO3210 are used with less preferable.…”

Section: Introductionmentioning

confidence: 99%

Specific absorption rate distribution evaluation in a different substrate for hyperthermia treatment

Naimullah

Lias

Buniyamin

et al. 2022

IJEECS

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Hyperthermia treatment procedure (HTP) isatreatment that uses high heatgenerated from electromagnetic (EM) waves, which is about 42 °C to 45 °C within a particular duration. However, poor focus position distance on the treated tissue has become a significant concern among the researchers since it may contribute to a wide area of unwanted hot spots, which lead to severe adverse health effects on healthy tissue.This paper presents a specific absorption rate (SAR) distribution evaluation of different microstrip antenna substrates with different electrical permittivities, contributing to different sizes of microstrip antenna patches, which then provide different attainment of the SAR distribution on the treated tissue. Operating frequencies of 434MHz, 915 MHz, and 2,450 MHz with 10 W operating powerare utilized. ASEMCAD X is used to conduct a simulation in obtaining the SAR distribution, which determines the focus position distance on different tumour (malignant tissue) sizes. Based on the results, the suitable substrate for frequency 915 MHz and 2,450MHz is RT5880, and RT5870, while RO3210 and RT6010 performed their best at 434MHz and 2,450MHz. The finding of this study can be used for further research in optimizing microstrip antenna development for HTP.

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A novel dual-band bandpass SIW filter loaded with modified dual-CSRRs and Z-shaped slot

Cited by 16 publications

References 6 publications

Generative Model for Dual-Band Filters Based on Modified Complementary Split-Ring Resonators

Generative Model for Dual-Band Filters Based on Modified Complementary Split-Ring Resonators

Realization of a novel dual-band bandpass filter with coupled series gaps and stepped impedance complementary split ring resonators

Specific absorption rate distribution evaluation in a different substrate for hyperthermia treatment

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