A novel type of bandpass filter using complementary open‐ring resonator loaded HMSIW with an electric cross‐coupling

Yan, Tianying; Tang, Xiaohong; Xu, Zhao‐Xu; Lu, Di

doi:10.1002/mop.29719

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…The measured transmission zeros, which were observed at 4.7, 7.75, 8.6, and 9.35 GHz with return losses of 45.7, 21.9, 48.1, and 41.5 dB, respectively, generated a wide stop-band extending from 100 MHz to 3.17 GHz and 4.21 GHz to 10 GHz. Table 1 indicated that our developed BPF exhibits a noticeable advantage of higher number of transmission zeros, and therefore, better stop-band selectivity than several recently reported BPFs [17][18][19][20][21][22]. Additionally, the present BPF exhibits a more compact effective size Moreover, the superior pass-band selectivity of the proposed BPF is marked by the lower insertion loss and higher return loss.…”

Section: Multipath Coupled Bpf Analysismentioning

confidence: 69%

Split Ring Resonator-based Bandpass Filter with Multi-Transmission Zeros and Flexibly Controllable Bandwidth Using Multipath Source-Load Couplings

Kim¹,

Adhikari²,

Kim³

2018

RADIOENGINEERING

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This paper presents a high-selectivity compact microstrip bandpass filter (BPF) with a flexibly controllable bandwidth, based on multi-path source-load couplings and a square-type split-ring resonator (STSRR). An STSRR, which is enclosed between the capacitively coupled source and load transmission feed lines, forms the structure of the proposed BPF. The main advantages of the proposed BPF lie in its simple structure and high selectivity due to multiple transmission zeros generated by multipath source-load couplings based on STSRR-enabled magnetic coupling between the feed lines with dual capacitive couplings. In addition, the bandwidth of the proposed BPF can be flexibly controlled by varying the magnetic coupling gap between the STSRR and the feed lines. The measured pass-band insertion and return loss of 0.83 and 27.23 dB, respectively, for a prototype BPF with a central frequency of 3.83 GHz and corresponding bandwidth of 12.98%, demonstrate the validity of the proposed method.

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Section: Multipath Coupled Bpf Analysismentioning

confidence: 69%

Split Ring Resonator-based Bandpass Filter with Multi-Transmission Zeros and Flexibly Controllable Bandwidth Using Multipath Source-Load Couplings

Kim¹,

Adhikari²,

Kim³

2018

RADIOENGINEERING

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“…The working principle of the proposed structures is based on the theory of evanescent‐mode propagation. According to the theory of evanescent‐mode propagation, an additional passband below the waveguide cutoff could be obtained by loading the electric scatterers on the waveguide surface . The CGRs behave as electric dipoles and are good candidates to behave as electric scatterers.…”

Section: Siw–cgr Filtermentioning

confidence: 99%

“…According to the theory of evanescent-mode propagation, an additional passband below the waveguide cutoff could be obtained by loading the electric scatterers on the waveguide surface. 12,13,21,22 The CGRs behave as electric dipoles and are good candidates to behave as electric scatterers. Therefore, according to the theory of evanescent-mode propagation, by loading the proposed CGR unit-cell on the metal cover of the SIW structure, an additional passband below the waveguide cutoff can be achieved.…”

Section: Siw-cgr Filtermentioning

confidence: 99%

Compact metamaterial unit-cell based on stepped-impedance resonator technique and its application to miniaturize substrate integrated waveguide filter and diplexer

Danaeian

Afrooz

2018

Int J RF Microw Comput Aided Eng

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In this article, a new miniaturized metamaterial unit‐cell using stepped‐impedance resonator technique is proposed. The proposed unit‐cell is used to miniaturize the physical size of the conventional complementary split‐ring resonators (CSRRs). In the proposed unit‐cell which is called complementary G‐shaped resonator (CGR), the slot line in the conventional circular CSRR is replaced with the stepped‐impedance slot line. As well as, by carving two trapezoidal shapes inside the inner ring, the resonance frequency of the proposed CGR unit‐cell has been more decreased. Compared to the conventional circular CSRR structure, the electrical size of the proposed CGR is decreased and miniaturization is occurred. To investigate the performance of the proposed CGR unit‐cell in the size reduction, two substrate integrated waveguide filters and a diplexer are designed. To validate the proposed miniaturization technique, the designed filters and diplexer loaded by the CGR unit‐cell are fabricated and measured. The measured results are in a good agreement with the simulated ones. The results shows that, a miniaturization factor about 0.69 is achieved.

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“…Based on evanescent-mode propagation, a compact SIW bandpass filter using broad side coupled CSRR [22] and fractal open complementary split-ring resonators (FOCSRRs) unit-cell has been presented [23]. Complementary open-ring resonators (CORRs) loaded half mode substrate integrated waveguide (HMSIW), with many transmission zeros and wide stopband, have been proposed [24]. Novel dual mode SIW filters that can provide multiple transmission zeros have been proposed [25].…”

Section: Introductionmentioning

confidence: 99%

Artificial Neural Network Based Siw Bandpass Filter Design Using Complementary Split Ring Resonators

Rayala¹,

Raghavan²

2021

PIER C

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A novel Artificial Neural Network (ANN) based two Substrate integrated waveguide (SIW) bandpass filters comprising Complementary Split Ring Resonators (CSRRs) are proposed in this paper. These CSRRs are modelled on the upper layer of the SIW cavity. A feed forward multilayer perceptron (FF-MLP) neural network is used to optimize the physical dimensions of the proposed filters. To validate the analytical results, physical prototypes of the proposed filters are fabricated, and a measurement is carried out with a Combinational Network Analyzer (Anritsu-MS2037C), and the obtained experimental results agree well with the estimated results using full wave analysis. Within the passband from 8.22 to 8.95 GHz, S 12 of the first filter shows better than −0.5 dB insertion loss (IL) and a fractional bandwidth of 8.5%, and within the passband from 8.21 to 8.73 GHz, the second filter shows IL about −0.8 dB and a fractional bandwidth of 6.1%.

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A novel type of bandpass filter using complementary open‐ring resonator loaded HMSIW with an electric cross‐coupling

Cited by 9 publications

References 10 publications

Split Ring Resonator-based Bandpass Filter with Multi-Transmission Zeros and Flexibly Controllable Bandwidth Using Multipath Source-Load Couplings

Split Ring Resonator-based Bandpass Filter with Multi-Transmission Zeros and Flexibly Controllable Bandwidth Using Multipath Source-Load Couplings

Compact metamaterial unit-cell based on stepped-impedance resonator technique and its application to miniaturize substrate integrated waveguide filter and diplexer

Artificial Neural Network Based Siw Bandpass Filter Design Using Complementary Split Ring Resonators

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