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Pays d'origine: Spain

Résumé

A Spanish multidisciplinary research group has developed a circular polarized planar antenna for microwave frequencies, built on a parallel plate structure filled with a dielectric material (glass Teflon). The research group is looking for licensing the patent.

Description complète

The technology consists of a planar antenna with circular polarization for microwave frequencies, built on a radial line structure, generated with two parallel plates (conductors) filled with a dielectric material (glass Teflon).

The radiating structure is an array of pair of slots placed in concentric rings. The antenna feed is obtained with four posts, placed in the center of the radial line, that are excited through a microstrip circuit, which is a Butler network with two inputs.

Each of the inputs generates a different beam. The first one has a maximum in the broadside direction, and has a linear phase for azimuth angles. The second one has a conical beam, with a null in broadside direction, and the phase is constant for all the azimuth angles.

Comparing amplitude and phase for both antenna patterns, it is possible to obtain the direction of arrival in the angular range of elevation, for all the azimuth range of values (monopulse system). The monopulse planar aerial has a very low cost in spite of its high technical specifications.

Aspects innovants

The main innovative aspect of this work is the possibility of obtaining the direction of arrival of signals in a cone (in elevation and azimuth) with one aerial, extremely cheap, without complicated feeding networks, as happens in most of the monopulse systems.

The main competitive advantage of this technology consist of the availability of a monopulse radar aerial with very low cost and high technical specifications, able to detect angles of arrival in a cone (in azimuth and elevation), comparing amplitude and phase of two signals.

Expertise recherchée:

- Type of partner sought: Industry
- Specific area of activity of the partner: manufacturers of aerials
- Task to be performed by the partner sought: license agreement

Autres projets ouverts dans le domaine (25)

 

Dates clés Profil créé le: 08 March 2010 Valide jusque: 01 January 2011

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