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AssigneeIee International Electronics & Engineering S.A.
InventorsChristian Hammes, Andreas Diewald
Estimating the term…
A periodic type leaky wave antenna, formed, e.g. on a printed circuit board, using cells of a filled circular structure. The leaky wave antenna may be formed in a series fed patch configuration. In order to achieve a high quality factor with respect to high frequency sensitive beam, a circular patch structure may be used, giving the best area to perimeter ratio. The cavity model based design considerations yield a proportional Q-factor expression with respect to the geometrical ratio. The antenna design takes into consideration effects such as degradation at broadside and circular polarisation, as well as input reflection coefficient. The tuning of a delay loop length yields a simple optimization criterion in order to achieve Q-balancing, circular polarisation and a matched configuration.
An antenna element comprising a cell of filled circular geometry adapted to operate, when driven in use, in the E01 mode, and a delay loop configured for mode rotation, wherein the delay loop is adapted to achieve O-balancing, mutual coupling compensation and/or tuning of a reflection coefficient within the delay loop length.
A unit cell comprising a cell, a delay loop and a feed line portion, the feed line portion being an element of the feed line, wherein the cell has a filled circular geometry adapted to operate, when driven in use, in the E01 mode, and the delay loop configured for mode rotation, wherein the delay loop is adapted to achieve Q-balancing, mutual coupling compensation and/or tuning of a reflection coefficient within a delay loop length.
Dependencies are inferred from the claim text.