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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Azevedo, Nuno Monteiro |
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Bösch, Wolfgang
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023On the Difficulties to Determine the Intrinsic Material Parameters for MnZn Ferritescitations
- 2023Experimental analysis of grounded coplanar waveguide structures based on different PCB processes with uncertainty analysiscitations
- 2022mm-Wave Complex Permittivity Extraction of LTCC Substrate Under the Influence of Surface Roughnesscitations
- 2022Complex Permittivity Measurement of Dielectric Substrates at Millimeter-wave Frequencies
- 2021Additive Manufacturing of Non-homogenous Dielectric Waveguide Structures and Filterscitations
- 2020A D-band 3D printed antennacitations
- 2019Compact broadband frequency selective microstrip antenna and its application to indoor positioning systems for wireless networkscitations
- 2018Emerging technologies and concepts for 5G applications - A. making additive manufactured ceramic microwave filters ready for 5Gcitations
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article
A D-band 3D printed antenna
Abstract
This paper reports the design and fabrication of a novel all-metal antenna operating in the millimeter-wave band. Based on the resonant cavity antenna (RCA) concept, the principle of antenna operation is explained, and a parametric study of several key design parameters is provided. A novel impedance matching technique is introduced to broaden the antenna return loss bandwidth. Two gain enhancement methods have been employed to achieve a more directive beam with reduced side lobes and back lobes. The D-band antenna prototypes are produced using i) all-metal printing without any post-processing; ii) dielectric printing with copper metallization applied later. Comparisons of the simulated and measured results amongst the antennas fabricated using the two additive manufacturing techniques are made. Measurement results of the two antenna prototypes show that the proposed design can achieve a 14.2% bandwidth with a maximum gain of 15.5 dBi at 135 GHz. The present work is the first D-band resonant cavity antenna fabricated using two different 3D printing methods.