Low-Profile Planar Dielectric Polarizer Using High-Dielectric-Constant Material and Anisotropic Antireflection Layers

Ding, Chen; Luk, Kwai‐Man

doi:10.1109/tap.2021.3090847

Cited by 12 publications

(12 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among them, we can mention 27 , 28 in which the polarizers work at 60 GHz with excellent performance in terms of bandwidth and insertion losses, but the manufacturing technology used for the printing is not a standard 3D printing process but a more sophisticated technology and also due to the used materials much more bulky designs relative to the wavelength. The only example where standard 3D printing is used is 29 : in this case, the operation frequency is lower than the one used for our design with the central frequency being 24 GHz. All of these previous examples are more bulky compared to the proposed due to the dielectric constants used in the designs varying from 2.4 in Ref.…”

Section: Design Of the Anisotropic Polarizer And Array Integrationmentioning

confidence: 99%

“…In Ref. 29 the fabrication using fused filament deposition is explored at the 24 GHz frequency band with very good results in terms of bandwidth and axial ratio. In this work, this approach is taken further in the mm-wave frequency bands with the design and manufacturing of a circular polarizer for a low profile horn array feed by transverse slots at 38 GHz, fabricated using low cost and low loss 3D printing at mm-wave frequencies.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High gain low profile horn array with circular polarization using a 3D printed anisotropic dielectric composite material at 38 GHz

Castro

Pizarro

Rajo‐Iglesias

2022

Sci Rep

View full text Add to dashboard Cite

In this work, the design of a fully 3D-printed dielectric polarizer based on anisotropic engineered material operating at 38 GHz is presented. The anisotropy conditions to obtain circular polarization are achieved by using an array of dielectric strips, manufactured using two different commercially available filaments for 3D-printing. To illuminate the polarizer, a low-profile horn linear array fed by transverse slots is designed and manufactured. The results show good agreement between simulations and measurements, with the designed polarizer covering the whole operation band of the antenna by keeping a similar gain when compared to the structure without the polarizer.

show abstract

Section: Design Of the Anisotropic Polarizer And Array Integrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High gain low profile horn array with circular polarization using a 3D printed anisotropic dielectric composite material at 38 GHz

Castro

Pizarro

Rajo‐Iglesias

2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Since the dielectric slab is 45 tilted with respect to the xy-plane, E c1 and E c2 are parallel and perpendicular to the slab, respectively. References [14][15][16] have demonstrated that periodically arranged dielectric slabs exhibit anisotropic characteristic in directions parallel and perpendicular to the slabs. In fact, this anisotropy is led by the structural difference in different directions and not limited to periodic structures.…”

Section: Operating Principlementioning

confidence: 99%

“…They are generally able to achieve wide band performance because of their traveling wave nature. [14][15][16] However, the conventional polarizers typically consist of a number of periodically arranged dielectric slabs, which results in bulky and complicated structures. In this paper, we simplify the conventional periodic structure into a single slab, and also demonstrate that even if the slab number is reduced to one, it still can transform linearly polarized waves into CP ones, while, the wide band characteristic is maintained.…”

Section: Introductionmentioning

confidence: 99%

“…In the past, dielectric polarizers are often used as an effective way to generate CP radiation. They are generally able to achieve wide band performance because of their traveling wave nature 14–16 . However, the conventional polarizers typically consist of a number of periodically arranged dielectric slabs, which results in bulky and complicated structures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3‐D printed circularly polarized multibeam antenna array with full azimuth scanning capability and wideband characteristic for 5G millimeter‐wave applications

Long

Peng

Chu

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

This paper presents a wideband circularly polarized (CP) multibeam antenna array, which is with full azimuth scanning capability and operates in Ka band for 5G applications. It adopts a circular array configuration and consists of 18 elements with a simple structure. Regarding to each element, it is fed by a 90 bent rectangular waveguide and employs a simplified single dielectric slab polarizer to produce CP waves. Within the axial ratio bandwidth (ARBW), the proposed element can achieve a stable half power beamwidth (HPBW) of 29 ± 7 , while, the 3-dB AR beamwidth is larger than the HPBW. By switching the active elements, the proposed array can realize 360 beam steering in azimuth plane, while, the HPBW and the 3-dB AR beamwidth cover the entire plane. To simplify the fabrication process, dielectric and metal 3-D printing technologies are employed for processing. Experimental results indicate that the proposed array can achieve a 40.5% 3-dB ARBW which almost covers the entire Ka band from 26.2 to 39.5 GHz and a gain of 9.9 ± 1.5 dBic. The front-to-back ratio (FBR) of each beam is higher than 19 dB. In contrast to conventional designs, the proposed antenna features wide band, simple structure, and ease of fabrication.

show abstract

Electromagnetic and Chemical Analysis and Performance Comparison of Inset‐fed Rectangular Microstrip Antennas

et al. 2023

View full text Add to dashboard Cite

A simple method for creating lightweight and inexpensive microstrip patch antennas using reduced graphene oxide or acetylene black added epoxy resin was developed. The biggest goal in the method is optimizing the appropriate chemicals and production processes for producing the materials with the designed properties. Five examples of an inset‐fed microstrip patch antenna operating at approximately 2.0–12.0 GHz were designed based on the antenna‘s basic analytical formula. Their models were created in a 3D electromagnetic simulation environment. After examining the performance results of the design, the appropriate design models were produced with both 3D printer technology and wet‐chemical methods, and the experimental results were compared with the simulation results. The produced reduced graphene oxide or acetylene black added samples′ structure was illuminated with scanning electron microscope images, FTIR and Raman spectroscopy analysis. The measured S11 characteristics of the antennas provide better performance as compared to the simulated results. The measured S11 parameters for the two and three frequency bands fell substantially below −10 dB. As a result of the dielectric constants of the materials and the fabrication of the radiation plane, horizontal shifts were detected in the measurement outcomes.

show abstract

Low-Profile Planar Dielectric Polarizer Using High-Dielectric-Constant Material and Anisotropic Antireflection Layers

Cited by 12 publications

References 24 publications

High gain low profile horn array with circular polarization using a 3D printed anisotropic dielectric composite material at 38 GHz

High gain low profile horn array with circular polarization using a 3D printed anisotropic dielectric composite material at 38 GHz

3‐D printed circularly polarized multibeam antenna array with full azimuth scanning capability and wideband characteristic for 5G millimeter‐wave applications

Electromagnetic and Chemical Analysis and Performance Comparison of Inset‐fed Rectangular Microstrip Antennas

Contact Info

Product

Resources

About