A Wideband Millimeter-Wave Circularly Polarized Antenna With 3-D Printed Polarizer

Wang, Kai Xu; Wong, Hang

doi:10.1109/tap.2016.2647693

Cited by 114 publications

(38 citation statements)

References 27 publications

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“…In [22], chiral geometries are used to control the phase delay induced between illu-minating orthogonal field components. Wideband conversion is attained in [23] based on dielectric grooved rods. Cells based on metallic helices are theoretically studied in [24], though no experimental results are provided.…”

Section: Introductionmentioning

confidence: 99%

All-Metal 3-D Frequency-Selective Surface With Versatile Dual-Band Polarization Conversion

Jiménez

Menargues²,

Garcia-Vigueras

2020

IEEE Trans. Antennas Propagat.

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A dual-band periodic structure is here proposed, which allows for versatile frequency selectivity and polarization conversion functionality. The structure is a monolithic fullmetal piece, and it is built from the arrangement of unit-cells consisting of waveguide sections at cutoff loaded with compound perforations. The topology of such unit-cells enables the efficient and independent interaction with vertical and horizontal electric field components illuminating the periodic structure. A circuit model is proposed to characterize the cells and understand their behaviour. Three different examples of cells are designed to illustrate the structure versatile functionality. One of these examples is manufactured, consisting of a dual-band structure that converts linear polarization into circular with orthogonal senses of rotation at each band. The experimental results are in good agreement with the theoretical predictions, thus validating the underlying operation mechanism and its practical feasibility.

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Section: Introductionmentioning

confidence: 99%

All-Metal 3-D Frequency-Selective Surface With Versatile Dual-Band Polarization Conversion

Jiménez

Menargues²,

Garcia-Vigueras

2020

IEEE Trans. Antennas Propagat.

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“…On the other hand, polarizers are utilized in antenna designs for circularly polarization, 22 gain enhancement, 23 and polarization reconfigurable. 24 In this research, we intend using a polarization converter upon our previous high X-polarization ZOR antenna 4 for polarization purifying.…”

Section: Introductionmentioning

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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“…In addition, compared with linearly polarized antenna, circularly polarized antenna has the capability to enhance the quality of transceiver effectively and improve the signal transmission competence possessed by the system. Therefore, relevant studies have been carried out for circularly polarized antenna of various types working in millimeter band, which are proposed accordingly as well …”

Section: Introductionmentioning

confidence: 99%

A circularly polarized horn antenna with elliptical waveguide polarizer

Liu

et al. 2019

Micro & Optical Tech Letters

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In this article, a circularly polarized horn antenna with elliptical waveguide polarizer is proposed. By converting linear polarization into circular polarization in the elliptical waveguide polarizer, circularly polarized radiation can be realized by the proposed antenna in D-band. The observation shows that the proposed antenna achieves the impedance bandwidth of 16.7% for S11 < −10 dB from 110 to 130 GHz and the axial-ratio bandwidth of 11.7% from 114 to 128 GHz. The measured gain of the proposed antenna can reach the range 13.6-17.82 dBic from 110 to 130 GHz. Besides, the measured normalized beam of the proposed antenna at the far field is able to realize a sidelobe below −25 dB, as well as good axial symmetry. With the elliptical waveguide polarizer, it is obtained that the proposed antenna has the potential application of circularly polarized radiation in millimeter and sub-millimeter wave band.

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A Wideband Millimeter-Wave Circularly Polarized Antenna With 3-D Printed Polarizer

Cited by 114 publications

References 27 publications

All-Metal 3-D Frequency-Selective Surface With Versatile Dual-Band Polarization Conversion

All-Metal 3-D Frequency-Selective Surface With Versatile Dual-Band Polarization Conversion

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

A circularly polarized horn antenna with elliptical waveguide polarizer

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