Universal waveguide joint, flexible coupler, and arrangement for a surveillance radar antenna
First Claim
Patent Images
1. A universal waveguide joint comprising at least three consecutive waveguide segments slidable over each other at abutting concave-spherical and convex-spherical end surfaces, the curvatures in said at least three segments being oriented in the same direction.
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Abstract
Universal waveguide joint, provided with at least two waveguide segments (1-7) slidable over each other, whereby one end of at least one of the waveguide segments (1-7) has a convex surface and the end of another respective waveguide segment, slidable over said convex surface, a concave surface.
243 Citations
16 Claims
- 1. A universal waveguide joint comprising at least three consecutive waveguide segments slidable over each other at abutting concave-spherical and convex-spherical end surfaces, the curvatures in said at least three segments being oriented in the same direction.
- 12. A flexible waveguide coupler comprising a gimbal system having a universal waveguide joint including at least two waveguide segments slidable over each other, characterized in that one end of at least one of the waveguide segments has a convex surface and the end of another respective waveguide segment, slidable over said convex surface, has a concave surface.
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15. A flexible waveguide coupler comprising a universal waveguide joint comprising at least two waveguide segments slidable over each other, characterized in that one end of at least one of the waveguide segments has a convex surface and the end of another respective waveguide segment, slidable over said convex surface, has a concave surface, the rotational motion of one of the waveguide segments about its axis being tramsmitted to the other waveguide segment, and including a gimbal system into which the universal waveguide joint is integrally incorporated, the gimbal system having two gimbal forks which are connected to the two waveguide segments of the universal waveguide joint, characterized in that two of said universal waveguide joints are interconnected for obtaining a homokinetic transmission.
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16. An arrangement for a vehicle- or vessel-borne surveillance radar antenna, provided with a two-axis gimbal system mounted on the vehicle or vessel and with a platform suspended by said gimbal system, which platform can be stabilised with respect to an earth-fixed reference position, where the surveillance radar antenna is rotatable about an axis perpendicular to the platform, while a universal mechanical joint is incorporated for transmitting the rotational motion produced by a drive mechanism directly mounted on the vehicle or vessel, to the surveillance radar antenna, where a universal waveguide joint is included in the waveguide channel for the r.f. -energy transport between a transmitting and receiving unit, mounted on the vehicle or vessel, and the antenna, the orthogonal axes of which joints are movable in the plane through the axes of the gimbal system, where said universal waveguide joint comprises a gimbal system having a universal waveguide joint including at least two waveguide segments slidable over each other, and where one end of at least one of the waveguide segments has a convex surface and the end of another respective waveguide segment, slidable over said convex surface, has a concave surface.
Specification