Spurious-Free Dual-Band Bandpass Frequency-Selective Surfaces With Large Band Ratio

Li, Da; Shen, Zhongxiang; Li, Er‐Ping

doi:10.1109/tap.2018.2882601

Cited by 47 publications

(9 citation statements)

References 43 publications

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“…The RFD value of the compared structures is obtained by examining the transmission coefficients at the maximum angle in which the angular stability was achieved. The detailed data of the proposed structure and the previous works 6,7,[12][13][14][15][16][17] are listed in Table 4. As the first five articles are examined, it is seen that the best average deviation value is 0.98% at 30 ∘ and 1.57% at 45 ∘ , respectively.…”

Section: Discussion and Comparisonmentioning

confidence: 99%

“…FSS with different designs and structures proposed so far can be divided into three groups as single band, 3‐5 dual band, 6‐11 and multiband (triple and more) structures 12‐17 depending on the number of bands. Different design and techniques have been used to achieve multi‐band filtering, such as, a compact dual‐band, dual polarized band pass FSS is designed with combination of the band stops and high pass grid FSS for WLAN applications in Reference,11 the proposed structure consist of parallel LC resonators implemented by a via‐connected metallic line and a parallel‐plate capacitor in Reference,12 the FSS based on three‐ring geometry nested unsplit, single‐split and double‐split ring, respectively in Reference,13 a dogbone‐shaped patches by proposing an augmented ECM is used to design multilayer FSS in Reference,14 in the design of 15 square and circular loop patches are printed on a single‐sided lossy Teflon substrate which has very good heat and weather resistibility, the proposed FSS in Reference,16 comprises square loops arrays and supplemental apertures, respectively centered within a wire grid and an aperture grid, the FSS element based on four small square slots added in multiple stub resonators in Reference,17 and an angular‐stable multi‐layer reconfigurable FSS based on varactor is composed of three dielectric spacers and four metal layers in Reference 18…”

Section: Introductionmentioning

confidence: 99%

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Design and analysis of angular stable antipodal F‐type frequency selective surface with multi‐band characteristics

Karahan

Aksoy

2020

Int J RF Microw Comput Aided Eng

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This article presents frequency selective surface (FSS) with multi-band characteristics that features tri band band-stop and dual-band passband filter. The proposed FSS unit cell comprises the F-type resonance elements disposed of antipodal (diametrically opposed to) one to another on both layer and a square loop surrounding all resonators on the top layer of the dielectric substrate. The structure is specifically designed to filter out some extensively used broadband communication signals, such as, WiMAX and WLAN while enabling C-band satellite communication in the earth station and provides three stopbands operating at 2.4, 5.2, and 5.9 GHz besides two passbands of 4.1 and 5.5 GHz. Although this structure has a multi-band structure, it exhibits high stable performance for oblique incidence ranging from 0 to 60 for both transverse electric (TE) and transverse magnetic (TM) polarizations. Considering the resonant frequency deviation (RFD) at the incidence waves with different angles of arrivals, it was found that RFD at 60 is less than 0.6% on average and very low when compared with existing studies about multi-band FSS. The detailed equivalent-circuit model (ECM) is employed to predict and analyze the transmission characteristic of the proposed structure, and a good agreement between the simulated and measured transmission coefficients is obtained.

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Section: Discussion and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and analysis of angular stable antipodal F‐type frequency selective surface with multi‐band characteristics

Karahan

Aksoy

2020

Int J RF Microw Comput Aided Eng

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“…In the future communication applications, antenna systems operating in both microwave band and millimeter-wave (MMW) band are required to increase data exchange capability [1]. One notable scenario is the design of a dual-band antenna, covering both the 2.4 GHz and 24 GHz industrial scientific medical (ISM) bands [2].…”

Section: Introductionmentioning

confidence: 99%

SPPs-Shared Dual-Band Antenna With Large Frequency Ratio

2020

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The operating frequency of future communication systems will cover both microwave and millimeter-wave (MMW) bands simultaneously. This paper presents a novel design of spoof surface plasmon polaritons (SPPs) structure-shared dual-band antenna with large frequency ratio, which consists of a planar open sleeve monopole antenna operating at S-band and a taper slot antenna (TSA) at K/Ka-band. In this design, the SPPs structure takes important roles in two aspects: it serves as an equivalent-lens to enhance the gain of TSA and a monopole of the planar open sleeve antenna to keep a low profile. To realize high isolation between the two antennas, a substrate integrated waveguide (SIW) and an integrated coaxial line are designed to feed the TSA and the planar open sleeve monopole antenna respectively. The SPPs-shared antenna shows an enhanced endfire gain of 13.09 dBi in the frequency range of 19.32-32.90 GHz and an omnidirectional gain of 1.06-2.92 dBi over the range of 2.23-3.69 GHz, keeping a compact size. The large frequency ratio of 10.8, low profile and the wide operating bands in both lower and upper frequency ranges can meet many wireless communication applications. Reasonable agreement between the measured and simulated results is observed. INDEX TERMS Surface plasmon polaritons (SPPs), dual-band antenna, large frequency ratio, wideband antenna, planar monopole antenna, low profile, high isolation.

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“…FSS is essentially a kind of spatial filter, which does not absorb any energy itself. In recent years, FSS has been drawing a lot of attention for working as a spatial filter with a band-pass characteristics [1][2][3][4][5][6][7][8][9][10]. They are widely used in the electromagnetic field as filters, absorbers, radomes, and antenna reflectors.…”

Section: Introductionmentioning

confidence: 99%

“…In the first category, miniaturized elements frequency surface (MEFSS) is utilized to improve the oblique incident performance through reducing the unit size. Parker et al have proposed a method in which the metal lines were twisted and turned to increase the electrical length and reduce the unit size, and went a step further, interwoven elements were proposed, in which the coupling effect between neighbor elements was enhanced to make the unit size smaller [1,2,9,10]. Then another method has been proposed by Liu et al that metal patterns can be replaced by capacitors (C) or inductors (L).…”

Section: Introductionmentioning

confidence: 99%

An Angular Stabilized Frequency Selective Surface by Using Capacitance Layers Structure

Sun¹,

Bie²,

Liu³

et al. 2019

PIER Letters

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A band-pass frequency selective surface (FSS) structure using capacitance layers is proposed to improve the performance of angular stability. It consists of band-pass FSSs, supporting dielectrics, and capacitance layers out of band-pass FSS. The supporting dielectrics and capacitance layers work as a transmission line and capacitance impedance matcher. Through the impedance matcher, the bandwidth is stabilized, and insertion loss at passband is reduced from −0.76 dB to −0.39 dB for incident angles up to 60 • . The equivalent circuit of the proposed structure is presented, and the Smith chart is given to explain the mechanism of the capacitance layers. Finally, a prototype is manufactured and measured. A relatively good agreement is obtained between simulations and measurements. Therefore, the proposed structure can be an effective solution to improve the angular stability performance of band-pass FSS design.

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Spurious-Free Dual-Band Bandpass Frequency-Selective Surfaces With Large Band Ratio

Cited by 47 publications

References 43 publications

Design and analysis of angular stable antipodal F‐type frequency selective surface with multi‐band characteristics

Design and analysis of angular stable antipodal F‐type frequency selective surface with multi‐band characteristics

SPPs-Shared Dual-Band Antenna With Large Frequency Ratio

An Angular Stabilized Frequency Selective Surface by Using Capacitance Layers Structure

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