US 2003/0193014 A1 · Antenna apparatus

Abstract

An antenna apparatus detects a reflected light from a scattered light or from a reflector (40) mounted in an optical fiber (6,6a-6d), measures a strain generated in a primary reflecting mirror (1) and so on based on the scattered light or the reflected light, and calculates a reflector surface compensation data based on the strain of the primary reflecting mirror (1) and so on. An antenna driving section (11) is driven according to the reflector surface compensation data in order to compensate a direction of an antenna.

Claims18

Dependent claims

An antenna apparatus made up of a primary reflecting mirror, a secondary reflecting mirror, a secondary reflecting mirror support section, a back structure for the primary reflecting mirror, and an antenna mount section, comprising:

an optical fiber mounted in the primary reflecting mirror;
a strain,measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data.

2 more elements

(A) an optical fiber mounted in the primary reflecting mirror;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data,
(B) an optical fiber mounted on the secondary reflecting mirror support section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the secondary reflecting mirror support section;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
(C) an optical fiber mounted on the back structure;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the back structure;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the back structure;
and
an antenna driving section for compensating the direction of an antenna based on the antenna. directional compensation data, and
(D) an optical fiber mounted on the antenna mount section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the antenna mount section;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data.

17 more elements

an optical fiber mounted in the primary reflecting mirror, the secondary reflecting mirror support section, the back structure, and the antenna mount section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror, a strain generated in the secondary reflecting mirror support section, a strain generated in the back structure, and a strain generated in the antenna mount section;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section, the strain generated in the back structure, and the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
wherein
the optical fiber comprises first and second optical fibers,
the first optical fiber is mounted in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the second optical fiber is mounted in the antenna mount section, and
the strain measurement section comprises first and second strain measurement sections,
the first strain measurement section supplies a light to the first optical fiber, detects a scattered light transmitted from the first optical fiber, and measures the strain generated in the primary reflecting mirror, the strain generated in the secondary reflecting mirror support section, and the strain generated in the back structure, and
the second strain measurement section supplies a light to the second optical fiber, detects a scattered light transmitted from the second optical fiber, and measures the strain generated in the antenna mount section.

10 more elements

(A) a pair of optical fibers mounted in the primary reflecting mirror;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the primary reflecting mirror using the reflected light from the optical fibers;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data,
(B) a pair of optical fibers mounted in the secondary reflecting mirror support section;
reflectors mounted at a tip of or in each optical fiber reflects an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the secondary reflecting mirror support section using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
(C) a pair of optical fibers mounted in the back structure;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the back structure using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the back structure;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data, and
(D) a pair of optical fibers mounted in the antenna mount section;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the antenna mount section using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data.

21 more elements

four optical fibers made up of two pairs of optical fibers, having reflectors mounted at a tip of or in each optical fiber, for reflecting an incident light mounted in the primary reflecting mirror, the secondary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and mounted in the antenna mount section;
strain measurement sections for supplying a light to the optical fibers, and measuring a strain generated in the primary reflecting mirror, a strain generated in the secondary reflecting mirror support section, a strain generated in the back structure, and a strain generated in the antenna mount section using the reflected light from the reflectors;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section, the strain generated in the back structure, and the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
wherein
the optical fibers comprises first, second, third and fourth optical fibers,
the first and second optical fibers are mounted in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the third and fourth optical fibers are mounted in the antenna mount section, and
the strain measurement sections comprises first and second strain measurement sections,
the first strain measurement section supplies a light to the first and second optical fibers, detects a reflected light, reflected by the reflectors, transmitted from the first and second optical fibers, and measures the strains generated in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the second strain measurement section supplies a light to the third and fourth optical fibers, detects a reflected light, reflected by the reflectors, transmitted from the third and fourth optical fibers, and measures the strain generated in the antenna mount section.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/406,288Filed 4 Apr 2003

Priority

JP 2002-11100812 Apr 2002

Published

16 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

H01Q 15/147
Reflecting surfaces; Equivalent structures: provided with means for controlling or monitoring the shape of the reflecting surface
H01Q 3/08
Using mechanical movement of antenna or antenna system as a whole: for varying two co-ordinates of the orientation
H01Q 19/19
Having two or more spaced reflecting surfaces: comprising one main concave reflecting surface associated with an auxiliary reflecting surface
H01Q
Antennas, i.e. radio aerials

Abstract

Claims18

Dependent claims

an optical fiber mounted in the primary reflecting mirror;
a strain,measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data.

2 more elements

(A) an optical fiber mounted in the primary reflecting mirror;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data,
(B) an optical fiber mounted on the secondary reflecting mirror support section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the secondary reflecting mirror support section;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
(C) an optical fiber mounted on the back structure;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the back structure;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the back structure;
and
an antenna driving section for compensating the direction of an antenna based on the antenna. directional compensation data, and
(D) an optical fiber mounted on the antenna mount section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the antenna mount section;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data.

17 more elements

an optical fiber mounted in the primary reflecting mirror, the secondary reflecting mirror support section, the back structure, and the antenna mount section;
a strain measurement section for supplying a light to the optical fiber, detecting a scattered light transmitted from the optical fiber, and measuring a strain generated in the primary reflecting mirror, a strain generated in the secondary reflecting mirror support section, a strain generated in the back structure, and a strain generated in the antenna mount section;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section, the strain generated in the back structure, and the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
wherein
the optical fiber comprises first and second optical fibers,
the first optical fiber is mounted in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the second optical fiber is mounted in the antenna mount section, and
the strain measurement section comprises first and second strain measurement sections,
the first strain measurement section supplies a light to the first optical fiber, detects a scattered light transmitted from the first optical fiber, and measures the strain generated in the primary reflecting mirror, the strain generated in the secondary reflecting mirror support section, and the strain generated in the back structure, and
the second strain measurement section supplies a light to the second optical fiber, detects a scattered light transmitted from the second optical fiber, and measures the strain generated in the antenna mount section.

10 more elements

(A) a pair of optical fibers mounted in the primary reflecting mirror;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the primary reflecting mirror using the reflected light from the optical fibers;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
and
a reflector surface compensation section for compensating the reflector surface of the primary reflecting mirror based on the reflector surface compensation data,
(B) a pair of optical fibers mounted in the secondary reflecting mirror support section;
reflectors mounted at a tip of or in each optical fiber reflects an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the secondary reflecting mirror support section using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
(C) a pair of optical fibers mounted in the back structure;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the back structure using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the back structure;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data, and
(D) a pair of optical fibers mounted in the antenna mount section;
reflectors mounted at a tip of or in each optical fiber for reflecting an incident light;
a strain measurement section for supplying a light to the optical fibers, and measuring a strain generated in the antenna mount section using the reflected light from the reflectors;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data.

21 more elements

four optical fibers made up of two pairs of optical fibers, having reflectors mounted at a tip of or in each optical fiber, for reflecting an incident light mounted in the primary reflecting mirror, the secondary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and mounted in the antenna mount section;
strain measurement sections for supplying a light to the optical fibers, and measuring a strain generated in the primary reflecting mirror, a strain generated in the secondary reflecting mirror support section, a strain generated in the back structure, and a strain generated in the antenna mount section using the reflected light from the reflectors;
a reflector surface error calculation section for calculating a reflector surface compensation data based on the strain generated in the primary reflecting mirror;
a directional error calculation section for calculating antenna directional compensation data based on the strain generated in the secondary reflecting mirror support section, the strain generated in the back structure, and the strain generated in the antenna mount section;
and
an antenna driving section for compensating the direction of an antenna based on the antenna directional compensation data,
wherein
the optical fibers comprises first, second, third and fourth optical fibers,
the first and second optical fibers are mounted in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the third and fourth optical fibers are mounted in the antenna mount section, and
the strain measurement sections comprises first and second strain measurement sections,
the first strain measurement section supplies a light to the first and second optical fibers, detects a reflected light, reflected by the reflectors, transmitted from the first and second optical fibers, and measures the strains generated in the primary reflecting mirror, the secondary reflecting mirror support section, and the back structure, and
the second strain measurement section supplies a light to the third and fourth optical fibers, detects a reflected light, reflected by the reflectors, transmitted from the third and fourth optical fibers, and measures the strain generated in the antenna mount section.

10 more elements

Dependencies are inferred from the claim text.

Antenna apparatus

Life of this patent

Abstract

Claims18

Antenna apparatus

Life of this patent

Abstract

Claims18