Draft:Gap Waveguide Technology
Submission declined on 4 November 2026 by WeirdNAnnoyed (talk).
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Comment: The draft is sourced mainly to primary sources, which cannot be used to fulfill WP:N. Ref. 4 might be usable for notability, but it doesn't use the term specifically and it's not clear from the text that it's referring to the same technology. WeirdNAnnoyed (talk) 22:06, 4 November 2026 (UTC)
Gap waveguide technology is a family of electromagnetic transmission structures used at microwave and millimeter wave frequencies. It uses periodic electromagnetic surfaces to confine guided waves between conducting plates without requiring continuous electrical contact between them.[1]
History
[edit]The technology originated from research by Per-Simon Kildal at Chalmers University of Technology in Sweden, involving collaboration with researchers at the Universitat Politècnica de València (UPV), Spain. Early investigations of electromagnetic surfaces and guiding structures were conducted between the two institutions, with subsequent experimental developments in Valencia.[2][1]
Technology and applications
[edit]Common configurations include ridge gap waveguide, groove gap waveguide and inverted microstrip gap waveguide. They use engineered surfaces to suppress unwanted electromagnetic propagation outside the intended guiding region.[3]
Applications studied include antenna arrays, filters, feeding networks and radar components. The technology has also been used in the development of automotive radar antennas.[4]
See also
[edit]- Waveguide (electromagnetism)
- Electromagnetic bandgap material
- Substrate-integrated waveguide
References
[edit]- 1 2 Kildal, Per-Simon; Alfonso, Esperanza; Valero-Nogueira, Alejandro; Rajo-Iglesias, Eva (2009). "Local Metamaterial-Based Waveguides in Gaps Between Parallel Metal Plates". IEEE Antennas and Wireless Propagation Letters. 8: 84–87. doi:10.1109/LAWP.2008.2011147.
- ↑ Development of planar antennas based on soft and hard surfaces (PDF) (Doctoral thesis). Universitat Politècnica de València.
- ↑ Kildal, Per-Simon; Zaman, Ashraf Uz; Rajo-Iglesias, Eva; Alfonso, Esperanza; Valero-Nogueira, Alejandro (2011). "Design and experimental verification of ridge gap waveguide in bed of nails for parallel-plate mode suppression". IET Microwaves, Antennas & Propagation. 5 (3): 262–270. doi:10.1049/iet-map.2010.0089.
- ↑ "Gapwaves and AT&S Make Cars More Perceptive". Microwave Journal. 13 May 2026.
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