3-D Printed Millimeter-Wave and Terahertz Lenses with Fixed and Frequency Scanned Beam

High-gain and beam-scanning antennas are extremely important in the applications of millimeter-wave (MMW) and terahertz (THz) technologies. Dielectric lens is a suitable candidate for this purpose, because it has no metal and quite small feeding loss. In this paper, discrete dielectric lenses are st...

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Published inIEEE transactions on antennas and propagation Vol. 64; no. 2; pp. 442 - 449
Main Authors Yi, Huan, Qu, Shi-Wei, Ng, Kung-Bo, Chan, Chi Hou, Bai, Xue
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna measurements
Antennas
beam-scanning
Dielectrics
Fabrication
Finite element analysis
high-gain
lens
Lenses
Millimeter-wave
terahertz
three-dimensional (3D) printing
Three-dimensional displays
terahertz (THz)
three-dimensional (3-D) printing
lens
Beam-scanning
high-gain
millimeter-wave (MMW)
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Abstract High-gain and beam-scanning antennas are extremely important in the applications of millimeter-wave (MMW) and terahertz (THz) technologies. Dielectric lens is a suitable candidate for this purpose, because it has no metal and quite small feeding loss. In this paper, discrete dielectric lenses are studied in which periodic antireflection (AR) structures are added to reduce impedance mismatch at the air-dielectric interfaces, leading to higher directivity. Meanwhile, a multifrequency phase matching method is proposed to realize a beam-scanning lens in both MMW and THz regions. The design concept of the beam-scanning lens is applicable to other frequency ranges as well, which opens new opportunities for future lens design. Moreover, three-dimensional (3-D) printing technology is employed to simplify the manufacturing process and reduce the cost. Experiments are done in both MMW and THz regions, and the results verify the concept of lens design. The 3-D printed MMW and THz lenses with fixed and scanning beams demonstrated in this work could be an important step toward MMW and THz communications, radar, and imaging systems for practical applications.
AbstractList High-gain and beam-scanning antennas are extremely important in the applications of millimeter-wave (MMW) and terahertz (THz) technologies. Dielectric lens is a suitable candidate for this purpose, because it has no metal and quite small feeding loss. In this paper, discrete dielectric lenses are studied in which periodic antireflection (AR) structures are added to reduce impedance mismatch at the air-dielectric interfaces, leading to higher directivity. Meanwhile, a multifrequency phase matching method is proposed to realize a beam-scanning lens in both MMW and THz regions. The design concept of the beam-scanning lens is applicable to other frequency ranges as well, which opens new opportunities for future lens design. Moreover, three-dimensional (3-D) printing technology is employed to simplify the manufacturing process and reduce the cost. Experiments are done in both MMW and THz regions, and the results verify the concept of lens design. The 3-D printed MMW and THz lenses with fixed and scanning beams demonstrated in this work could be an important step toward MMW and THz communications, radar, and imaging systems for practical applications.
Author Xue Bai
Chi Hou Chan
Huan Yi
Shi-Wei Qu
Kung-Bo Ng
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Keywords terahertz (THz)
three-dimensional (3-D) printing
lens
Beam-scanning
high-gain
millimeter-wave (MMW)
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Snippet High-gain and beam-scanning antennas are extremely important in the applications of millimeter-wave (MMW) and terahertz (THz) technologies. Dielectric lens is...
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SubjectTerms Antenna measurements
Antennas
beam-scanning
Dielectrics
Fabrication
Finite element analysis
high-gain
lens
Lenses
Millimeter-wave
terahertz
three-dimensional (3D) printing
Three-dimensional displays
Title 3-D Printed Millimeter-Wave and Terahertz Lenses with Fixed and Frequency Scanned Beam
URI https://ieeexplore.ieee.org/document/7347367
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Volume 64
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