Design Formulas for Planar Fabry–Pérot Cavity Antennas Formed by Thick Partially Reflective Surfaces

Hosseini, Alister; Flaviis, F. De; Capolino, Filippo

doi:10.1109/tap.2016.2608934

Cited by 16 publications

(11 citation statements)

References 22 publications

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“…The use of lens antennas allows to efficiently achieve larger gains >30 dBs, over larger bandwidths (>20%) in comparison with other more resonant antenna solutions, such as Fabry-Perot [3], metasurfaces [4], or transmitarrays [5]. Moreover, the lens-steering capability enables the generation of simultaneous multiple beams pointing in different directions with planar Fly's eye lens array panels, as displayed in Fig.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Fly’s Eye Lenses with Leaky-Wave Feeds for Wideband Communications

Campo

Blanco

Bruni

et al. 2020

IEEE Trans. Antennas Propagat.

101

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In order to fulfill the exponential increase in the demand of high-speed wireless links, future XG wireless networks will be developed at higher carrier signal frequencies, reaching the hundreds of gigahertz. In this contribution, a leaky-wavefed HDPE lens antenna working at G-band which can be useful for future XG communications is presented. The proposed lens design enables the generation of up to 40 beams, with gains higher than 30 dB. Analytical tools have been applied to optimize the lens aperture efficiency, validating the results via full-wave simulations. The reached aperture efficiency for the broadside beam is higher than 80% over a 44% relative bandwidth. The measurement results for a fabricated prototype show excellent agreement with the simulated performance.

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Section: Introductionmentioning

confidence: 99%

On the Use of Fly’s Eye Lenses with Leaky-Wave Feeds for Wideband Communications

Campo

Blanco

Bruni

et al. 2020

IEEE Trans. Antennas Propagat.

101

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“…As the grid can be considered as a partially reflecting surface (PRS) for poor polarization waves, Then, a certain height h a is required to compensate the phases of the reflecting surfaces. [39][40][41] However, as the xand y-polarizations radiated from the MZR-MA have different phases, the equation should be modified as the following: where Δφ x-y is the phase difference between the X-and Ypolarizations radiated from the MZR-MA, φ PF is the reflection phase of the X-polarization of the PF, φ MZR-MA is the reflection phase of X-to-Y polarization at the MZR-MA. Moreover, as the PCR is medium (not large), multiple reflection would be occurred resonant cavity between the PF and the MZR-MA, which forms a resonant cavity.…”

Section: Operational Process and Discussionmentioning

confidence: 99%

normalΔ φ = normalΔ φ_{x - y} + φ_{PF} + φ_{italicMZR - italicMA} - \frac{4 π h_{a} f}{c} = 2 italicNπ, normalN = 0, 1, 2,

where Δφ x‐y is the phase difference between the X ‐ and Y ‐polarizations radiated from the MZR‐MA, φ PF is the reflection phase of the X ‐polarization of the PF, φ MZR‐MA is the reflection phase of X ‐to‐ Y polarization at the MZR‐MA.…”

Section: Mechanisms and Approachmentioning

confidence: 99%

Polarization and bandwidth improvements of a zeroth‐order resonators loaded microstrip antenna with grid polarization filter cover and metallic cavity

Peng

Wang

Xing

et al. 2020

Int J RF Microw Comput Aided Eng

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In this research, the polarization and bandwidth of a zeroth-order resonators (ZORs) loaded microstrip antenna are improved by employing a grid polarization filter cover and a metallic cavity. The polarization improvement is owing to three operations, (a) the filter cover allows co-polarization wave passing through only, (b) the ZORs partly rotate the reflected cross-polarizations (X-polarizations) wave to be co-polarization, (c) the metallic cavity suppresses the fringe fields of the cover. The bandwidth enhancement is owing to the polarization cover that reflects the X-polarization, which forms a resonant cavity. The improvements of the simulated cross-polarizations range from 17.7 to 35.3 dB in the band. The measured bandwidth is increased from 940 MHz (17.22%) of the referenced antenna to 1390 MHz (24.5%) of the proposed antenna. The measured results verify the simulations.

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Santi C. Pavone . performance in different aspects, including the optimization analysis [2]- [4], theoretical interpretation [5]- [8], and optimization design [9]- [12]. Many properties can be achieved with FP antennas, such as low profile [9], multi-band [10], circular polarization [11], RCS reduction [12], reconfigurable [13]- [15] and wideband [16] operation.…”

Section: Introductionmentioning

confidence: 99%

A Low-RCS, High-GBP Fabry–Perot Antenna With Embedded Chessboard Polarization Conversion Metasurface

Liu

Børnemann

et al. 2020

IEEE Access

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A Fabry-Perot (FP) antenna with high gain-bandwidth product (GBP) and wideband radar cross section (RCS) reduction is proposed using an embedded chessboard polarization conversion metasurface (CPCM). A polarization conversion metasurface (PCM) unit and its mirror unit are etched on both sides of a dielectric substrate with chessboard arrangement to form a CPCM. The in-band and out-of-band low-RCS features of the FP antenna are realized by destructive interference, and the high GBP is attributed to the FP resonant cavity. Moreover, an additional small CPCM designed for another PCM unit is embedded into the original CPCM to construct an embedded CPCM, which helps to improve in-band RCS reduction and has a positive effect on gain enhancement and 10-dB impedance bandwidth. The measured results show that the FP antenna with embedded CPCM has a 10-dB return-loss bandwidth of 8.48-12.21 GHz (36.1%), a GBP of 1338, a 3-dB gain bandwidth of 8.9-11.5 GHz (25.5%) and a maximum realized gain of 17.2 dBi. Meanwhile, the measured RCS reduction band covers 8-26 GHz (105.9%) with a peak RCS reduction of 21.2 dB at 9.4 GHz.

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Design Formulas for Planar Fabry–Pérot Cavity Antennas Formed by Thick Partially Reflective Surfaces

Cited by 16 publications

References 22 publications

On the Use of Fly’s Eye Lenses with Leaky-Wave Feeds for Wideband Communications

On the Use of Fly’s Eye Lenses with Leaky-Wave Feeds for Wideband Communications

Polarization and bandwidth improvements of a zeroth‐order resonators loaded microstrip antenna with grid polarization filter cover and metallic cavity

A Low-RCS, High-GBP Fabry–Perot Antenna With Embedded Chessboard Polarization Conversion Metasurface

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