Wideband and Wide-Angle FSS Using Loop Slotted Hybrid Quarter-Mode Substrate Integrated Cavity With Two Independently Controllable Poles

Wang, Hong Bin; Cheng, Yu Jian; Chen, Zhi Ning

doi:10.1109/tap.2020.2998220

Cited by 15 publications

(6 citation statements)

References 41 publications

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“…Tuning optimization for several times in ADS, the final values of the components obtained are L 1 = 270 pH, L 2 = 47.43 pH, C 1 = 0.595 pF, C 2 = 3.248 pF. And then we can simplify (8) and (9) to get (10) and (11).…”

Section: Dual-band Equivalent Circuit Model Analysismentioning

confidence: 99%

“…It has been widely used in radar‐stealth radome, 2 reflector antenna system, reducing antenna radar cross section (RCS) 3 . Regarding the design of FSS unit, the previous literatures mostly started directly from the structure, through the design of miniaturization, 4 multilayer FSS cascade, 5 loading with active LC devices, 6 loading graphene 7 or substrate integrated waveguide (SIW) 8 to improve the in‐band transmission and out‐of‐band suppression of FSS units. These methods open up new ideas for the research of FSS.…”

Section: Introductionmentioning

confidence: 99%

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Design and analysis of dual‐band FSS based on equivalent circuit

Zhao

2022

Int J RF Mic Comp-Aid Eng

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A method of designing bandpass frequency select surface (FSS) has been proposed based on series and parallel equivalent circuit thought in this article.The novel dual-band equivalent circuits are designed. The equivalent admittances were extracted, and resonance frequency was calculated. The dual-band properties of circuit were verified, which lays foundation for the designing of FSS structure. The FSS unit designed in this paper adapts single-layer thin substrate, and it has simple structure, is easy to implement. The thickness of dualband is 0.017 wavelength. The angle stability and polarization stability of FSS are improved by utilizing miniaturization ideas and adding symmetrical structures. The dual-band FSS consists of two inner and outer loops nested. The inner ring is the Jerusalem structure, and the outer ring is folded structure, both can be independently adjustable resonance frequency. It can realize stable resonance at center frequencies under oblique incidence of 0 to 60 for both TE and TM polarization. For verifying filtering properties of FSS units, the prototypes are fabricated and measured. The results calculated by fullwave, equivalent circuit method (ECM) and measurement are in good agreement.

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Section: Dual-band Equivalent Circuit Model Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and analysis of dual‐band FSS based on equivalent circuit

Zhao

2022

Int J RF Mic Comp-Aid Eng

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“…Therefore, SIW technology has been extensively applied in the design of FSSs to realize high‐frequency selectivity, rapid cut‐off frequency, and so forth 2,15–19 . However, SIW cavities are usually larger than half a wavelength, and the interaction between working modes of the cavity and FSS resonant modes often results in incident angle instability and narrow bandwidth 2,20–24 . In Wang and Cheng, 20 the proposed size of SIW cavity is 0.5 λ 0 , its incident angle stability can only reach up to 15° and bandwidth is only 7%.…”

Section: Introductionmentioning

confidence: 99%

Wide‐angle band‐pass FSS with high‐frequency selectivity based on SIW cavity technology

Li,

Zhao,

Liu

et al. 2024

Micro & Optical Tech Letters

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This work proposes and investigates a wide‐angle band‐pass frequency selective surface (FSS) with two sharp sidebands. The presented FSS element is made up of three metallic layers and two substrate layers in between, which are surrounded by a substrate‐integrated waveguide (SIW) cavity. The top metallic layer is identical to the bottom layer, composed of a square patch etched with a hexagonal groove, while the middle layer is a similar patch but with rectangular notch edges. This structure achieves a second‐order band‐pass response with highly frequency selectivity on either side of the passband. At the same time, this FSS demonstrates excellent stability for both transverse electric and transverse magnetic polarizations with incident angles between 0° and 60°. The electric current and field distributions are demonstrated for deep analysis. Furthermore, an equivalent circuit model is developed to further understand the operating mechanisms. To verify the validity of the design, we construct a prototype of the SIW‐based FSS (SIW‐FSS) and measured it. There is a fair degree of agreement between the measured and simulated results. Finally, we loaded it onto the horn antenna and tested its application in filtering antennas.

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“…In References 10–12, high‐order resonance modes in SIW cavities and slot resonance were utilized to improve the selectivity despite the bulky elements. On this basis, half‐mode and quarter‐mode SIW (QMSIW)‐based FSS were proposed in References 13–15 to miniaturize unit sizes. However, they either maintained improvements in one sideband or only worked for single polarization.…”

Section: Introductionmentioning

confidence: 99%

Bandpass frequency selective surface with two sharp sidebands based on shunted quarter‐mode substrate integrated waveguide cavities

Tang

Liu

Pan

et al. 2021

Micro & Optical Tech Letters

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A new highly selective bandpass frequency selective surface (FSS) is proposed with sharp sidebands and low profile. The unit element is composed of two shunted quarter-mode substrate integrated waveguide (QMSIW) cavities with different dimensions and L-shaped slots etched on both sides of dielectric substrates. Two transmission zeros and three transmission poles are obtained by TM 0.5,0.5,0 resonance of cavities, slot resonance, and the coupling between them, which yield a flat passband with steep roll-off in both sidebands. As unit dimension is miniaturized using quarter-mode resonance, the FSS presents good angular stability for dual polarization. Simulated results indicate that the passband with insertion loss less than 1 dB covers 8.86-9.57 GHz, while the transitional bandwidth at both sides of the passband is 27 and 25 MHz, respectively. A prototype was fabricated and measured, the experimental results of which verified the design.

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Wideband and Wide-Angle FSS Using Loop Slotted Hybrid Quarter-Mode Substrate Integrated Cavity With Two Independently Controllable Poles

Cited by 15 publications

References 41 publications

Design and analysis of dual‐band FSS based on equivalent circuit

Design and analysis of dual‐band FSS based on equivalent circuit

Wide‐angle band‐pass FSS with high‐frequency selectivity based on SIW cavity technology

Bandpass frequency selective surface with two sharp sidebands based on shunted quarter‐mode substrate integrated waveguide cavities

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