Gapwaves Ab

Carlo Bencivenni

Thomas Ove Emanuelsson

Ashraf Uz Zaman

Hanna Karlsson

Alireza Bagherimoghim

Arvid Bjurklint

An antenna arrangement () comprising a radiation layer () comprising a first slot () and a second slot () extending along a first slot axis (D) and second slot axis (D), respectively, where the first and the second slots are arranged in a column () extending along a column axis (D), and where the slot axes are arranged at respective non-zero third and fourth angles (a, a) with respect to the column axis; and a distribution layer () facing the radiation layer (), comprising a first ridge waveguide comprising a first ridge () and a second ridge waveguide comprising a second ridge (), wherein waveguiding paths () of the first and second waveguides are configured to match respective shapes of the first and second ridges. A first section () of the first ridge () facing the first slot () extends along a first ridge axis (DI) and a second section () of the second ridge () facing the second slot () extends along a second ridge axis (D), where the ridge axes are arranged at respective non-zero first and second angles (a, a) with respect to the column axis, where the first and second angles (a, a) are configured to match the third and fourth angles (a, a), respectively.

Rotated ridge waveguide antenna

A high frequency filter comprising a waveguide and at least one resonant cavity is disclosed. The waveguide is a so-called gap waveguide, and comprises a metal or metallized base layer, a lid arranged in parallel with said metal or metallized baser layer, a waveguiding structure in the form of a ridge, a groove or a microstrip line, and an artificial magnetic conductor arranged on said base layer, between the baser layer and the lid, and arranged aligned with said waveguiding structure to prevent waveguide propagation along other directions than along said waveguide structure. The filter further comprises at least one resonant cavity arranged within said baser layer, and extending essentially perpendicular to a plane of said baser layer. The filter may e.g. be used in a phased array antenna.

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Gothenburg, Sweden

Carlo Bencivenni