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Excitation of the first high-order mode in ridge gap waveguide. (English) Zbl 1454.78027

Farouk, Mohamed Hesham (ed.) et al., Recent advances in engineering math and physics. Proceedings of the international conference, RAEMP 2019, Cairo, Egypt, December 24–26, 2019. Cham: Springer. 207-214 (2020).
Summary: In this chapter, a method to excite the first higher-order mode of the ridge gap waveguide (RGW) is introduced. The fundamental mode of the RGW is well studied in a lot of papers, while the higher-order modes are ignored. However, they have some good properties that make them suitable for specific applications. The higher-order modes can exist by having a ridgeline. In the proposed work, the excitation of the first higher-order modes is achieved by having an L transition and vias that convert the fundamental quasi-TEM mode of the RGW to the first higher-order mode (first odd mode) and suppress the even modes. The proposed transition has a simple configuration and is designed by using metallic (RGW) technology. The proposed structure is simulated using a full wave simulator (CST Microwave Studio).
For the entire collection see [Zbl 1451.74012].

MSC:

78A50 Antennas, waveguides in optics and electromagnetic theory
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