# US 5,703,603 A · Multi-beam lens antenna

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- Number: US 5,703,603 A
- Document ID: US5703603A
- Status: Granted
- Kind: A
- Application number: 08/578,702
- Filed: 1995-12-27
- Granted: 1997-12-30
- Earliest claimed: 1995-12-27
- Assignees: Tovarischestvo S Ogranichennoi Otvetstvennostju "Konkur"
- Inventors: Petr Nikolaevich Korzhenkov; Jury Leonidovich Pyait; Alexandr Semenovich Smagin; Alexandr Lvovich Epshtein
- Web page: https://patentgrep.com/patent/US5703603A

## CPC

- H01Q 15/02: Refracting or diffracting devices, e.g. lens, prism
- H01Q 5/45: using two or more feeds in association with a common reflecting, diffracting or refracting device
- H01Q 25/008: {lens fed multibeam arrays}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

The multi-beam lens antenna contains a spherical centro-symmetric lens (1), fixed by means of joints (3) fastening it to a frame (2) in the form of an ellipse, so that the center of the lens (1) lies outside the plane of the frame (2). The frame (2) is installed on the base (4) and able to turn relative to the horizontal plane. The antenna also contains illuminators (8), positioned on the semi-circle guide (9), connected to the frame (2) by means of fastening joints (11). The joints (3, 11) fastening the lens (1) and the semi-circle guide (9) to the frame are constructed as self-positioning in their angle placement and adjustable with the possibility of moving along their axes. The semi-circle guide (9) is located in the plane parallel to the plane which passes through the center of the lens (1) and the long axis of the frame (2), while the frame (2) is positioned on an aligning base (4) able to turn the statically imbalanced lens (1), the frame (2), and the semi-circle guide (9) relative to the long axis of symmetry of the frame (2), with the resulting fixation of the position of the frame (2).

## Claims

### Claim 1

Multi-beam lens antenna, comprising:
a centro-symmetric spherical lens fixed by means of first fastening joints to an elliptical frame having a long axis and a short axis, so that the center of the lens lies outside the plane of the frame, said frame being supported by a base and being capable of rotating relative to the base, and
illuminators positioned on a semi-circle guide joined to the frame by means of second fastening joints and installed from the side opposite the position of the lens center,
wherein each of said first joints comprises a screw member coupled to the frame and having a round head engaged with a support member attached to the lens, to enable adjustment of the lens with respect to the frame,
the semi-circle guide is arranged in a plane parallel to the plane which passes through the center of the lens and the long axis of the frame, and
the base is adapted to rotate the lens, the frame and the semi-circle guide relative to the long axis of the frame to enable alignment of the lens.

### Claim 2 (depends on 1)

Multi-beam lens antenna as described in claim 1, wherein each of the first joints further comprises a bracket rigidly connected to the frame and having a threaded opening for receiving said screw member having a threaded screw capable of turning in a continuous direction.

### Claim 3 (depends on 1)

Multi-beam lens antenna as described in claim 1, wherein each of the second joints comprises a threaded screw member inserted into the semi-circle guide so as to be capable of moving with respect to the guide, and coupled with a round support arranged on the frame, and each of the second joints further comprises a conical nut for fixing the position of the threaded screw member with respect to the guide, and a plate for connecting the frame and the semi-circle guide.

### Claim 4 (depends on 1)

Multi-beam lens antenna as described in claim 1, wherein fixing the position of the frame is carried out by means of nuts supported by an axle rigidly connected to the frame.

### Claim 5 (depends on 1)

Multi-beam lens antenna as described in claim 1, wherein the base further comprises a supplementary center plate which comprises a threaded screw having a round support and connected with a girder movable along the axis of the screw, and a supporting plate connected to the round support.