Miniaturized Dual-Band FSS Suitable for Curved Surface Application

Wei, Pei-Shen; Chiu, Cheng‐Nan; Chou, Chia‐Chun; Wu, Tzong‐Lin

doi:10.1109/lawp.2020.3029820

Cited by 40 publications

(17 citation statements)

References 15 publications

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“…THz applications [7]. The FPC antenna is usually composed of two substrates: the lower one with the feed antenna and the ground plane, and the upper one with a frequency selective surface (FSS) [8], [9], i.e., the superstrate, operating as the partially reflective surface (PRS). These two parts can be individually designed so that it is more flexible for FPC antennas to obtain high gain with a high aperture efficiency [10].…”

Section: Introductionmentioning

confidence: 99%

A Fabry-Perot Cavity Antenna With Non-Uniform Superstrate and EBG Ground for High Gain and High Aperture Efficiency

Hei

Wang

et al. 2021

IEEE Access

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A design of high-gain Fabry-Perot cavity (FPC) antenna is presented with non-uniform frequency selective surface (FSS) superstrate and electromagnetic band gap (EBG) reflecting ground. The non-uniform FSS superstrate and EBG ground are utilized to flexibly control the attenuation constant α over a large antenna aperture while ensuring the resonance condition of the FPC. The uniformity of the amplitude of the aperture field is improved significantly while obtaining appropriate radiation efficiency. Therefore, the high gain and high aperture efficiency can be achieved within a desirable bandwidth. The theoretical gain estimation is conducted to prove the superiority of the proposed antenna over a referenced uniform one. A straight-forward design methodology is proposed based on the radial leaky-wave theory and the modified transverse equivalent network (TEN) model. The non-uniform high-gain FPC antenna with a diameter of 6.6λ 0 is designed at the frequency of 15 GHz. Simulated results show that a gain of 24.6 dBi with an aperture efficiency of 67.9% has been achieved. The measured gain is 24.0 dBi with an aperture efficiency of 58.4%. The 10dB return loss bandwidth and 3 dB gain bandwidth are 5.3% and 3.2%, respectively. The proposed antenna overcomes the limit on aperture efficiency and gain of conventional uniform FPC antennas, and the presented methodology can guide the design of two-dimensional non-uniform high-gain FPC antennas.INDEX TERMS Fabry-Perot cavity (FPC) antenna, frequency selective surface (FSS), high gain antenna, high aperture efficiency.

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Section: Introductionmentioning

confidence: 99%

A Fabry-Perot Cavity Antenna With Non-Uniform Superstrate and EBG Ground for High Gain and High Aperture Efficiency

Hei

Wang

et al. 2021

IEEE Access

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“…There have a great number of studies on miniaturized FSSs, such as closed loop and complementary structures [15,16,17,18,19], loading with passive lumped elements (capacitors and inductors) [20,21,22,23], coupling technology based on capacitive and inductive surfaces [24,25,26], and 2.5-D knitted structures [27,28,29]. A miniaturized FSS with double pass-band was designed in [15], which was based on the closed loop and its complementary pattern.…”

Section: Introductionmentioning

confidence: 99%

“…A miniaturized FSS with double pass-band was designed in [15], which was based on the closed loop and its complementary pattern. Four FSSs were proposed based on the convoluted design in [16,17,18,19]. These FSSs provided double stop-band response with the unit cell structures were printed on single layer of the substrate.…”

Section: Introductionmentioning

confidence: 99%

Design of miniaturized dual-band frequency selective surface with spiral arrangement of meander lines

Huo

Bao

Zhu

et al. 2021

IEICE Electron. Express

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A miniaturized dual-band frequency selective surface (FSS) is proposed in this letter. The FSS unit cell is composed of meander lines arranged spirally, and produces resonant frequencies of 1.42 GHz and 3.76 GHz with -3 dB bandwidths of 0.95 GHz and 0.49 GHz. The equivalent circuit model is introduced to explain the FSS performance. The meander lines at top and bottom layers are connected through copper vias to increase the equivalent inductance and capacitance of the FSS unit cell. The dimension of the unit cell is 10 mm, which is about 4.7% of the wavelength at the first resonant frequency. Simulation results show that the proposed FSS can work stably at resonant frequencies for both TE and TM polarizations while the incidence angle varies from 0 to 60 degree. A prototype of the FSS is fabricated and measured. The measurement results show reasonable agreement with the simulated results.

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“…Miniaturized FSS can be used to overcome the above difficulties. Many methods are employed to achieve the purpose of unit size reduction, including the coupling technology based on the capacitive surface and inductive surface [13][14][15], loading with passive lumped elements (capacitors and inductors) [16,17], and the unit curling and interdigitating design [18][19][20][21][22][23]. In [18], a convoluted structure is used for miniaturized FSS, and the element size is about 0.08 wavelength of the free-space.…”

Section: Introductionmentioning

confidence: 99%

“…e proposed FSS comprises meander lines printed on a single-layer dielectric substrate, and the element size is about 0.065 wavelength at the resonant frequency. In [21], a miniaturized FSS is proposed that could fulfill thin substrate design for curved application and provide stable resonant frequency. e compact unit size can achieve 0.052 wavelength at the lower resonant frequency.…”

Section: Introductionmentioning

confidence: 99%

Design of Miniaturized and Polarization-Insensitive Double-Layer Frequency Selective Surface Based on Meander Lines

Huo

Liu

Zhu

et al. 2021

International Journal of Antennas and Propagation

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The work presented in this paper concerns a method for the miniaturized frequency selective surface (FSS) based on the meander lines. A miniaturized dual-bandstop FSS structure based on meander lines with spiral-shape is proposed and simulated. The equivalent circuit and current distributions are introduced to explain the FSS performance. The size of the unit cell is 10 mm, which is about 0.037 wavelength at the first resonant frequency. Simulation results indicate that the proposed FSS has a frequency shift smaller than 1% for different polarizations with an oblique incident angle of 60°. A prototype of the FSS is fabricated and measured. The measurement results show that the FSS is polarization-insensitive and angle-insensitive.

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Miniaturized Dual-Band FSS Suitable for Curved Surface Application

Cited by 40 publications

References 15 publications

A Fabry-Perot Cavity Antenna With Non-Uniform Superstrate and EBG Ground for High Gain and High Aperture Efficiency

A Fabry-Perot Cavity Antenna With Non-Uniform Superstrate and EBG Ground for High Gain and High Aperture Efficiency

Design of miniaturized dual-band frequency selective surface with spiral arrangement of meander lines

Design of Miniaturized and Polarization-Insensitive Double-Layer Frequency Selective Surface Based on Meander Lines

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