Bandpass Frequency Selective Structure With Improved Out-of-Band Rejection Using Stacked Single-Layer Slotlines

Li, Bo; Huang, Xin; Li, Zhu; Zhang, Yixiong; Tang, Yiming; Lu, Wen‐Jun; Bo, Yaming

doi:10.1109/tap.2018.2866529

Cited by 57 publications

(17 citation statements)

References 27 publications

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“…To validate our design concept, an FSS prototype is fabricated and measured. The detailed experiment devices and set up are described in [2 ]. The dielectric substrates are chosen as the RO4003C materials with a thickness of 1.524 mm, ɛ r = 3.55, and tan( δ ) = 0.0029.…”

Section: Experimental Verificationmentioning

confidence: 99%

“…The common approaches for realising high‐order bandpass FSSs can be summarised as (i) 3D structures [2 ]; (ii) substrate integrated waveguide (SIW) cavities [3 ]; (iii) multilayer structures using non‐resonant elements [4 ]. The FSSs based on the 3D structures [2 ] and SIW cavities [3 ] have the advantage of providing multiple transmission poles/zeros at desired finite frequencies. Unfortunately, the 3D FSSs are usually complicated in topologies and with large assembly tolerance.…”

Section: Introductionmentioning

confidence: 99%

“…FSSs have been extensively studied as spatial filters for microwave and optical signals over the past few decades [1 ]. Among them, FSS with high‐order filtering response is preferable in advanced radar and communication systems [2–4 ].…”

Section: Introductionmentioning

confidence: 99%

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High‐order bandpass frequency selective surface based on aperture‐coupled patch resonators under dual resonance

Xie

Lyu

et al. 2020

Electron. lett.

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A bandpass frequency selective surface (FSS) with fourth‐order bandpass filtering response is proposed based on aperture‐coupled patch resonators (ACPRs) under the operation of TM010 and TM030 resonant modes. An initial bandpass ACPRs FSS with second‐order filtering response is firstly realised by periodically arranging the back‐to‐back patch resonators with coupling apertures etched on the common ground. In order to combine the resonant modes TM010 and TM030 for a higher‐order filtering response, seven pairs of shorting pins are properly loaded based on the cavity model theory for the microstrip patch resonator. The loaded shorting pins make the TM010 mode of the ACPRs shift towards the higher frequency, while the TM030 mode keeps nearly unchanged. As a result, these two resonant modes can be allocated in proximity to each other to finally realise a fourth‐order bandpass filtering response. To validate the design concept, an FSS prototype is designed and fabricated. Reasonable agreement between the measured and simulated results validates the conceptual design.

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Section: Experimental Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High‐order bandpass frequency selective surface based on aperture‐coupled patch resonators under dual resonance

Xie

Lyu

et al. 2020

Electron. lett.

Self Cite

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“…Whereas this kind of FSSs possesses frequency characteristics of narrow band, high selectivity, and a little large insertion loss. And a new concept of designing 3-D FSS based on a 2-D periodic array of shielded microstrip lines has been reported in [16], [17]. Propagating modes can be excited by the dispersion diagram of shielded microstrip lines.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Elliptic Bandpass Frequency Selective Surface Based on Coupled Stubs-Loaded Ring Resonators

Liao

Wong

et al. 2020

IEEE Access

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In this paper, a novel design of frequency-selective surface (FSS) based on coupled stubsloaded ring resonators (SLRRs) is proposed. The proposed FSS exhibits quasi-elliptic bandpass filtering characteristic at C-band. And each unit cell of the structure is composed of two SLRRs coupled by a circular aperture. A novel method of transmission line (TL) model is proposed to investigate the operating principle of a single SLRR under normal incidence plane wave. Moreover, the operating mechanism of the proposed FSS is further researched with the aid of the equivalent circuit model (ECM) analysis method. Due to the symmetric and low-profile physical structure, the FSS keeps stable frequency response under oblique incident plane wave for both transverse electric (TE) and transverse magnetic (TM) polarizations. Finally, the designed FSS is fabricated and measured. And the measured results agree well with the simulated results. The measured results indicate that the proposed FSS exhibits a dual-polarized and stable bandpass frequency response with two transmission zeros (TZs) at around 5.71 and 6.87 GHz under different incident angles up to 40°.

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“…However, most aforementioned designs cannot achieve miniaturization and wide stopband simultaneously. A class of bandpass FSS with improved out-of-band rejection is presented in [24] by using stacked slotlines. Incident EM waves can propagate along the special slotlines, thus leading to the desired bandpass filtering response.…”

Section: Introductionmentioning

confidence: 99%

Angularly Stable Bandpass Frequency Selective Surface Based on Metasurface

Sun

et al. 2020

IEEE Access

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A novel bandpass frequency selective surface (FSS) working at 2.4 GHz is proposed in this paper based on metasurface with independent-polarization, wide rejection band and good angular stability. The 10-dB upper stopband could cover 3.35-9.4 GHz with a fractional bandwidth of 94.9%. In addition, the filtering response could remain stable under different polarizations and incidence angles. Parameter analysis and equivalent circuit model are illustrated to explain the resonance behavior of the proposed FSS. It is demonstrated that the lower resonant point in the stopband could be tuned independently by changing the length of small rectangular patches in the top layer. While the higher resonant point could be changeable independently by adjusting the diameter of circular gap in the bottom layer. A prototype of the proposed FSS is fabricated and its simulated results are coincided with measurements.

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Bandpass Frequency Selective Structure With Improved Out-of-Band Rejection Using Stacked Single-Layer Slotlines

Cited by 57 publications

References 27 publications

High‐order bandpass frequency selective surface based on aperture‐coupled patch resonators under dual resonance

High‐order bandpass frequency selective surface based on aperture‐coupled patch resonators under dual resonance

Quasi-Elliptic Bandpass Frequency Selective Surface Based on Coupled Stubs-Loaded Ring Resonators

Angularly Stable Bandpass Frequency Selective Surface Based on Metasurface

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