Waveguide array antenna
AssigneeNederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzpek TNO
InventorHubregt Jannis Visser
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Abstract
A waveguide array antenna is composed from a number of open waveguides lying in one plane on the radiation side, of which a part is fed on the reverse side thereof, while the other ones are closed off. On the radiation side there is provided at least one two-layer structure, integrated with the open waveguides and consisting of a dielectric layer and a perforated, electrically conductive layer, in which two-layer structure, together with the layer or the face on which this two-layer structure has been provided, a periodically repeating electromagnetic resonance pattern can be generated in parallel directions relative to said face, of which the energy, outputted via the perforations, forms a transmission beam.
Claims11
A waveguide array antenna, composed from a number of open waveguides lying in one plane on a radiation side, at least one two-layer structure comprising a dielectric layer and a perforated, electrically conductive layer being provided on the radiation side, wherein:
- a portion of the total number of the open waveguides is fed on a reverse side thereof, while the other ones are closed off,
- the at least one two-layer structure being integrated with the open waveguides, so that a periodically repeating electromagnetic resonance pattern is generated together in the two-layer structure and a face of the radiation side of the waveguides on which the two-layer structure has been provided, in parallel directions relative with the face, of which the energy of the resonance pattern, outputted via the perforations, forms a transmission beam.
Dependencies are inferred from the claim text.