Millimeter wave Wideband and Low-loss Compact Power Divider Based on Gap Waveguide: For Use in Wideband Antenna Array System
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| Název: | Millimeter wave Wideband and Low-loss Compact Power Divider Based on Gap Waveguide: For Use in Wideband Antenna Array System |
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| Autoři: | Khandani, Arefeh Kalantari, Farahbakhsh, A., Zarifi, D., Uz Zaman, Ashraf, 1975 |
| Zdroj: | IEEE Access. 12:116478-116488 |
| Témata: | Millimeter wave communication, Pins, Gap waveguide, Wideband design, Impedance, mmWave, Antenna arrays, Wideband, Compact power divider, Power dividers, Ridge gap waveguide, E-plane groove gap waveguide |
| Popis: | This paper presents a wideband and low-loss design of a compact power divider based on gap waveguide technology. The proposed power divider consists of two adjacent E-plane groove gap waveguide and a small ridge section to couple and equally divide the EM energy from the input E-plane groove gap waveguide to the two output ones in-phase. The simulation results show that the proposed waveguide power divider has about 40% impedance bandwidth while its size is 0.7λ × 0.6λ at the center frequency. An 8-way power divider is designed using the proposed 2-way power divider and the back-toback configuration of the 8-way one is fabricated to investigate the performance of the proposed design. In addition, to show the application of the presented power divider, a wideband linear horn antenna array is designed and fabricated. The measured results agree well with the simulated ones and prove the excellent low-loss and wide bandwidth of the proposed power divider over the band of interest from 50-75GHz. The measured S 11 of the entire 8-way power divider remains below -10 dB level, the insertion loss is around 1 dB over the band of interest. Also, the S 11 of the horn array integrated with the 8-way feed network remains below -10 dB and the low sidelobes of the radiation pattern of the entire horn array indicates excellent phase and amplitude balance for the power divider over the entire bandwidth of interest. |
| Popis souboru: | electronic |
| Přístupová URL adresa: | https://research.chalmers.se/publication/542384 https://research.chalmers.se/publication/542384/file/542384_Fulltext.pdf |
| Databáze: | SwePub |
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Nájsť tento článok vo Web of Science | Abstrakt: | This paper presents a wideband and low-loss design of a compact power divider based on gap waveguide technology. The proposed power divider consists of two adjacent E-plane groove gap waveguide and a small ridge section to couple and equally divide the EM energy from the input E-plane groove gap waveguide to the two output ones in-phase. The simulation results show that the proposed waveguide power divider has about 40% impedance bandwidth while its size is 0.7λ × 0.6λ at the center frequency. An 8-way power divider is designed using the proposed 2-way power divider and the back-toback configuration of the 8-way one is fabricated to investigate the performance of the proposed design. In addition, to show the application of the presented power divider, a wideband linear horn antenna array is designed and fabricated. The measured results agree well with the simulated ones and prove the excellent low-loss and wide bandwidth of the proposed power divider over the band of interest from 50-75GHz. The measured S 11 of the entire 8-way power divider remains below -10 dB level, the insertion loss is around 1 dB over the band of interest. Also, the S 11 of the horn array integrated with the 8-way feed network remains below -10 dB and the low sidelobes of the radiation pattern of the entire horn array indicates excellent phase and amplitude balance for the power divider over the entire bandwidth of interest. |
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| ISSN: | 21693536 21693536 |
| DOI: | 10.1109/ACCESS.2024.3441316 |