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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Skaik, Talal
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Publications (12/12 displayed)
- 2024CNC-Machined and 3D-Printed Metal G-band Diplexers for Earth Observation Applicationscitations
- 2023A monolithically printed filtering waveguide aperture antennacitations
- 2023Lightweight, High-Q and High Temperature Stability Microwave Cavity Resonators Using Carbon-Fiber Reinforced Silicon-Carbide Ceramic Compositecitations
- 2023Compact Self-Supportive Filters Suitable for Additive Manufacturingcitations
- 2023Compact Monolithic 3D-Printed Wideband Filters Using Pole-Generating Resonant Irisescitations
- 2023Evaluation of 3D printed monolithic G-band waveguide componentscitations
- 2022A 3D printed 300 GHz waveguide cavity filter by micro laser sinteringcitations
- 2022D-band waveguide diplexer fabricated using micro laser sinteringcitations
- 2022A Narrowband 3-D Printed Invar Spherical Dual-Mode Filter With High Thermal Stability for OMUXscitations
- 2022Thermal stability analysis of 3D printed resonators using novel materialscitations
- 2021125 GHz frequency doubler using a waveguide cavity produced by stereolithographycitations
- 2020180 GHz Waveguide Bandpass Filter Fabricated by 3D Printing Technologycitations
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article
A monolithically printed filtering waveguide aperture antenna
Abstract
This letter presents the design of a 3<sup> rd</sup> order filtering waveguide aperture antenna based on coupled cavity resonators. Three offset-coupled rectangular waveguide cavities are employed in the design realizing two nested loaded-stubs without costing extra structure and size. The loaded-stubs introduce two controllable transmission zeroes and enhance the out-of-band realized gain selectivity. To validate the predicted results, a prototype operating at theX- band frequencies has been fabricated monolithically using the 3-D selective laser melting printing technique. The measured results are in very good agreement with the simulated results, showing a flat gain response of 7.0 ± 0.2 dBi from 9.5–10.5 GHz with very good out-of-band selectivity. The fractional bandwidth is about 10% at 10 GHz when S <sub>11</sub> = -20 dB. Compared to the previously designed filtering antennas, the proposed design has the advantages of stronger out-of-band gain selectivity and low profile.