Miniaturized Half-Mode Fan-Shaped SIW Filter With Extensible Order and Wide Stopband

Xie, Hanyu; Wu, Bian; Xia, Lei; Chen, Jianzhong; Su, Tao

doi:10.1109/lmwc.2020.3001092

Cited by 26 publications

(17 citation statements)

References 16 publications

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“…Table 1 provides a comparative analysis and benchmarking of the proposed QMSIW filter with respect to the state-of-the-art filter circuits from the literature [3]- [26]. The proposed filter exhibits the footprint area reduced by 49.8% over the smallest of the considered compact circuits (here, [26]). Compared with [3]- [26], the proposed filter achieves lower insertion loss, and a larger fractional bandwidth.…”

Section: Fabrication Results and Discussionmentioning

confidence: 99%

“…The proposed filter exhibits the footprint area reduced by 49.8% over the smallest of the considered compact circuits (here, [26]). Compared with [3]- [26], the proposed filter achieves lower insertion loss, and a larger fractional bandwidth. Furthermore, the proposed QMSIW filter exhibits a better stopband rejection when compared with [3]- [21] and [23]- [25].…”

Section: Fabrication Results and Discussionmentioning

confidence: 99%

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Highly-Miniaturized Dual-Mode Bandpass Filter Based on Quarter-Mode Substrate Integrated Waveguide With Wide Stopband

2022

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This paper presents a novel design of a highly-miniaturized dual-mode bandpass filter (BPF) employing a quarter-mode substrate integrated waveguide (QMSIW). The QMSIW resonator is based on a square cavity with metallic vias along two sides, and open-ended edges at the remaining sides that contain orthogonal feed lines. An open slot is introduced along the two sides of the square cavity with metallic vias to form a magnetic wall. A single metallic via is assigned at the corner of the two open-edged sides to form an electrical wall, which produces different resonances. By loading a slot diagonally, the mode frequencies can be controlled independently, which allows us to realize a second-order BPF. The detailed design steps and a flowchart explaining the filter's topology evolution are presented. The eigen-mode analysis, field distributions, coupling matrix, and full-wave simulation of the proposed QMSIW filter topology are used to determine the filter's operating principle. To verify the proposed theory, a second-order BPF is realized, fabricated, and demonstrated experimentally. The BPF prototype exhibits excellent performance such as a small footprint of 0.019λ 2 , a wide passband of 34.8-percent, low insertion loss of 0.43 dB, and a wide stopband of 3.36f 0 with a rejection level greater than 20 dB. Excellent consistency is found between the EM-simulated and measured responses of the device.

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Section: Fabrication Results and Discussionmentioning

confidence: 99%

Section: Fabrication Results and Discussionmentioning

confidence: 99%

Highly-Miniaturized Dual-Mode Bandpass Filter Based on Quarter-Mode Substrate Integrated Waveguide With Wide Stopband

2022

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“…Due to its low loss, high Q value, easy integration and low processing cost, substrate integrated waveguide (SIW) structure has been a popular structure for designing millimeter wave devices in recent years [9][10][11][12][13][14]. Filter loaded with defected ground structure (DGS) has wide stopband, high roll off rate, small size and good insertion loss characteristics without adding additional circuit size [15][16].…”

Section: Introductionmentioning

confidence: 99%

TSV-based SIW bandpass filter with adjustable transmission zeros for D-band applications

Wang

Yang

Yin

et al. 2023

IEICE Electron. Express

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A substrate integrated waveguide (SIW) bandpass filter with adjustable out of band transmission zeros based on through-silicon via (TSV) technology is proposed. The single-cavity degenerate mode is separated by the metal via-hole and the defect grounding structure, which is coupled with other cavities to generate transmission zeros with adjustable positions and increase the out of band roll-off rate. The results show that, the center frequency of the filter is 148GHz, the bandwidth is 6.5GHz, the minimum insertion loss is 1.4dB, and the return loss is better than 20.4dB.

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“…However, compared with other planar technologies like the microstrip lines, they suffer from a large planar size and poor design flexibility. Therefore, some works were proposed to reduce the size of the SIW‐based filters, such as the folded technology, 6,7 half‐mode SIW, 8,9 and hybrid mode method 10,11 . Particularly, the combline resonator, as a novel miniaturized and High‐ Q resonator has been researched 12–15 .…”

Section: Introductionmentioning

confidence: 99%

Compact, dual‐band, and hybrid filter based on combline and substrate integrated waveguide resonators

Zheng

Wang

Dong

2021

Int J RF Microw Comput Aided Eng

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A novel compact hybrid dual‐band bandpass filter based on combline and substrate integrated waveguide (SIW) resonators is proposed. By exploring an SIW‐based hybrid cavity structure, a controllable dual‐band response is achieved. The low‐frequency passband is obtained by the combline, or mushroom resonators and the high‐frequency passband is formed by the TE101 and TE301 modes. Unlike other designs that use the main mode and the high‐order mode of the same resonator, we innovative use the TE301 mode of the rectangular cavity and cleverly divide this rectangular cavity into two small cavities, and use its TE101 mode to form the second passband with the TE301 mode of the large cavity. To improve the selectivity and out‐of‐band suppression, three transmission zeros are configured in this design. In order to verify the proposed design concept, a compact dual‐band filter using this hybrid resonance structure is fabricated and measured. It demonstrates good filtering performance, including a compact size of 0.45 × 1.09 λ0, a low insertion loss of 0.57 and 1.67 dB in the two bands, and a high‐design flexibility.

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Miniaturized Half-Mode Fan-Shaped SIW Filter With Extensible Order and Wide Stopband

Cited by 26 publications

References 16 publications

Highly-Miniaturized Dual-Mode Bandpass Filter Based on Quarter-Mode Substrate Integrated Waveguide With Wide Stopband

Highly-Miniaturized Dual-Mode Bandpass Filter Based on Quarter-Mode Substrate Integrated Waveguide With Wide Stopband

TSV-based SIW bandpass filter with adjustable transmission zeros for D-band applications

Compact, dual‐band, and hybrid filter based on combline and substrate integrated waveguide resonators

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