Millimeter-Wave Magneto-Electric Dipole Antenna Array With a Self-Supporting Geometry for Time-Saving Metallic 3-D Printing
| Autor: | Junhong Wang, Yujian Li, Lei Ge, Fanqi Sun |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication business.industry Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology law.invention Antenna array Dipole law Extremely high frequency 0202 electrical engineering electronic engineering information engineering Optoelectronics Power dividers and directional couplers Dipole antenna Electrical and Electronic Engineering Wideband business |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 68:7822-7832 |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2020.3016158 |
| Popis: | A specially designed millimeter-wave high-gain wideband magneto-electric (ME) dipole antenna array based on metallic 3-D printing technology is presented. In order to shorten the printing duration of the array that is related to the fabrication costs, components with novel self-supporting geometries in the printing process, including a waveguide-fed ME-dipole radiating element, a 1-to-4 power divider acting as the subarray feed, and a full-corporate E-plane waveguide feed network, are investigated. Benefitted from these components, the entire array configuration can be fulfilled by employing a time-saving printing scheme, which leads to a 15% reduction in the printing duration for an $8 \times 8$ array, and the reduction can be further increased to 40% for a $16 \times 16$ design in comparison with the reported 3-D printed Ka-band arrays with same sizes that were fabricated by using the traditional printing scheme. Simultaneously, excellent operating characteristics, including a wide bandwidth of 32.4%, a maximum gain of 27.1 dBi, and stable unidirectional radiation, are also confirmed experimentally by an $8 \times 8$ prototype of the proposed array. This work offers a method to effectively reduce the printing time of the 3-D printed large-size antenna arrays with attractive performance, which would be of importance to the practical cost-effective large-scale applications in the emerging millimeter-wave wireless communications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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