A <i>K</i>-Band 3-D Printed Focal-Shifted Two-Dimensional Beam-Scanning Lens Antenna With Nonuniform Feed

Zhang, Bing; Wu, Li; Zhou, Yanping; Yang, Yang; Zhu, Huacheng; Cheng, Fei; Chen, Qian

doi:10.1109/lawp.2019.2950264

Cited by 23 publications

(14 citation statements)

References 22 publications

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“…The measured maximum gain is 12.44 dBi @ 21.1 GHz with 3‐dB gain bandwidth from 18 to 24 GHz. The sudden drop of the measured gain above 22 GHz is caused by the dimensional tolerance in fabrication [18–20]. The 10% dimensional tolerance is caused by the post‐printing sintering to release the stress among the aluminium alloy particles with the device.…”

Section: Measurement Resultsmentioning

confidence: 99%

Metallic and dielectric hybrid 3D printed K‐band dielectric‐loaded antenna with reduced sidelobe

Zhang

Zhou

Chen

et al. 2020

IET Microwaves, Antennas & Propagation

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Section: Measurement Resultsmentioning

confidence: 99%

Metallic and dielectric hybrid 3D printed K‐band dielectric‐loaded antenna with reduced sidelobe

Zhang

Zhou

Chen

et al. 2020

IET Microwaves, Antennas & Propagation

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“…The proposed LPKDA consists of two pairs of dipoles along the feed line in a three‐dimensional layout. The metallic 3D printing technology is used to fabricate the complex structure 19,20 …”

Section: Introductionmentioning

confidence: 99%

A miniaturized three‐dimensional log periodic Koch‐dipole array antenna using T‐shaped top loading

Xiong

Zhang

2021

Int J RF Microw Comput Aided Eng

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A log periodic dipole array antenna (LPDA) is miniaturized by using top loading. The Koch dipole further helps to shrink the antenna size. Different from the traditional LPDA that features a planar structure, the proposed log periodic Koch-dipole array (LPKDA) adopts two identical pairs of top-loaded Kochdipoles that deploy orthogonally along the feed line. This results in a tree-like three-dimensional antenna geometry, which introduces one extra dimension of freedom for antenna designers. The influence of the top-loading on antenna's impedance bandwidth is studied under the Wheeler and Chu's limit. The characteristic of the Koch-dipole is analyzed. Taking the advantage of 3D printing technology to fabricate complex models, the proposed LPKDA is printed by selective laser melting using aluminum alloy. The simulated −10-dB bandwidth is 117.4% (0.91-3.54 GHz) The LPKDA has the average gain of 5.3 dBi over the 1 to 3.5 GHz impedance bandwidth in measurement. Radiation patterns agree well in simulation and measurement. Compared with conventional LPDA of the same impedance bandwidth, the proposed LPKDA features 42%-dimensional reduction. This letter proves the feasibility of antenna optimization by using both innovative design method and advanced fabrication process.

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“…Taking the advantage of 3D printing technology to fabricate complex structures, design of the CPLPKDA is no longer limited to a planar scale. [21][22][23][24] We propose a three-dimensional CPLPKDA that is only possible to be fabricated by 3D printing technology. The CP electromagnetic (EM) wave is generated by two pairs of dipoles that are orthogonally deployed along the feeding line.…”

Section: Introductionmentioning

confidence: 99%

“…In this letter, a circularly polarized log periodic Koch‐dipole array (CPLPKDA) antenna working at 2.1 to 3 GHz is introduced for the WLAN application. Taking the advantage of 3D printing technology to fabricate complex structures, design of the CPLPKDA is no longer limited to a planar scale 21‐24 . We propose a three‐dimensional CPLPKDA that is only possible to be fabricated by 3D printing technology.…”

Section: Introductionmentioning

confidence: 99%

A metallic 3D printed miniaturized circularly polarized log periodic Koch‐dipole array antenna

Xiong

Zhang

2021

Int J RF Microw Comput Aided Eng

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A miniaturized circularly polarized (CP) log periodic Koch-dipole array antenna (LPKDA) is proposed. Two pairs of dipoles are orthogonally deployed along the feeding line to generate the CP EM wave. The antenna's size is miniaturized by the T-shaped top loading and the Koch fractal structure, which also helps to widened the antenna's axial ratio bandwidth. Compared with the conventional LPDA of the same impedance bandwidth, the proposed miniaturized CPLPKDA features 42%-dimensional reduction. Taking the advantage of 3D printing technology to fabricate complex structures, the proposed CPLPKDA is fabricated by selective laser melting (SLM) using aluminum alloy. Measurement shows that the antenna has the average gain of 5.1 dBi from 2.1 to 3.0 GHz. It has impendence bandwidth (IBW) from 1.65 to 3.73 GHz (77.3%) and axial ratio bandwidth (ARBW) from 2.1 to 2.95 GHz (33.6%). Desirable radiation patterns are achieved. This letter proves the feasibility of antenna optimization by using both innovative design and advanced fabrication process.

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A K-Band 3-D Printed Focal-Shifted Two-Dimensional Beam-Scanning Lens Antenna With Nonuniform Feed

Cited by 23 publications

References 22 publications

Metallic and dielectric hybrid 3D printed K‐band dielectric‐loaded antenna with reduced sidelobe

Metallic and dielectric hybrid 3D printed K‐band dielectric‐loaded antenna with reduced sidelobe

A miniaturized three‐dimensional log periodic Koch‐dipole array antenna using T‐shaped top loading

A metallic 3D printed miniaturized circularly polarized log periodic Koch‐dipole array antenna

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