EP0073511A2
Expired / Lapsed
EP
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Satellite broadcasting receiver
Assignee: NEC Corp
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Filing: 1982-08-30
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Granted: —
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Expires: 2002-08-30
Abstract
Abstract A compact satellite broadcasting receiver is described comprising circular waveguide, a strip-line-shaped probe projected into the circular waveguide, a reflecting element provided backward from the probe in the circular waveguide and a microwave circuit having a strip line provided around the circular waveguide and connected with the probe. Furthermore, a satellite broadcasting receiver capable of simultaneously receiving two kind of microwaves polarized perpendicular to each other is realized by jointing two compact satellite broadcasting receivers as mentioned avobe with a relative arrangement of the strip-line-shaped probes placed at right angles.
Inventors
- 👤 Hiroshi Watanabe
- 👤 Eiji Aoki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 03:22
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247; H01P; H01P1/00; H01P1/16; H01Q13/00; H01Q13/02; H01Q13/025; H01Q13/0258
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
A satellite broadcasting receiver comprising a parabolic antenna, a circular waveguide provided close to a focus of said parabolic antenna for receiving an electromagnetic wave caught by said parabolic antenna, microwave circuit having a strip line for processing the received electromagnetic wave, and a mode converter between said circular waveguide and said strip line, said mode converter including a strip-line-shaped probe projected into said circular waveguide and a reflecting element provided backward from said probe, said microwave circuit being provided around said mode converter, and said strip line of said microwave circuit being connected with said probe.
Claim 2
Dependent Claim
97 words
A satellite broadcasting receiver comprising a parabolic antenna, a circular waveguide provided close to a focus of said parabolic antenna for receiving an electromagnetic wave caught by said parabolic antenna, microwave circuit having a strip line for processing the received electromagnetic wave, and a mode converter between said circular waveguide and said strip line, said mode converter including a strip-line-shaped probe projected into said circular waveguide and a reflecting element provided backward from said probe, said microwave circuit being provided around said mode converter, and said strip line of said microwave circuit being connected with said probe.
Claim 3
Dependent Claim
41 words
The satellite broadcasting receiver as claimed in claim 1, wherein said reflecting element is formed of a metal plate provided in said circular waveguide in parallel with the projectional direction of said probe and the axial direction of said circular waveguide.
Claim 4
Dependent Claim
36 words
The satellite broadcasting receiver as claimed in claim 1, wherein said reflecting element is formed of an iris filter having a slit, a longitudinal direction of which is parallel with the projectional direction of said probe.
Claim 5
Dependent Claim
91 words
Microwave equipment comprising two units, each of which contains a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and a strip line microwave circuit provided around said circular waveguide and connected with said probe, said two units being jointed with each other such that the strip-line-shaped probes of said two units have 90 degrees-shifted relative arrangement, and the circular waveguides of said two units being adapted to receive two kinds of microwaves polarized perpendicular to each other.
Claim 6
Dependent Claim
91 words
Microwave equipment comprising two units, each of which contains a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and a strip line microwave circuit provided around said circular waveguide and connected with said probe, said two units being jointed with each other such that the strip-line-shaped probes of said two units have 90 degrees-shifted relative arrangement, and the circular waveguides of said two units being adapted to receive two kinds of microwaves polarized perpendicular to each other.
Claim 7
Dependent Claim
40 words
The microwave equipment as claimed in claim 4, wherein said reflecting element is formed of a metal plate provided in said circular waveguide in parallel with a projectional direction of said probe and an axial direction of said circular waveguide.
Claim 8
Dependent Claim
45 words
. Microwave equipment comprising a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and a microwave circuit having a strip line provided around said circular waveguide and connected with said probe.
Claim 9
Dependent Claim
45 words
. Microwave equipment comprising a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and a microwave circuit having a strip line provided around said circular waveguide and connected with said probe.
Claim 10
Dependent Claim
36 words
The microwave equipment as claimed in claim 6, wherein said reflecting element is formed of a metal plate provided in said circular waveguide in parallel with said probe and an axial direction of said circular waveguide.
Claim 11
Dependent Claim
31 words
The microwave equipment as claimed in claim 6, wherein said reflecting element is formed of ai iris filter having a slit, a longitudinal direction of which is parallel with said probe.
Claim 12
Dependent Claim
28 words
-M icrowave equipment comprising a circular waveguide, a strip-line-shaped probe projected into said circular waveguide and a reflecting element provided backward from said probe in said circular waveguide.
Claim 13
Dependent Claim
28 words
-M icrowave equipment comprising a circular waveguide, a strip-line-shaped probe projected into said circular waveguide and a reflecting element provided backward from said probe in said circular waveguide.
Claim 14
Dependent Claim
36 words
The microwave equipment as claimed in claim 9, wherein said reflecting element is formed of a metal plate provided in said circular waveguide in parallel with said probe and an axial direction of said circular waveguide.
Claim 15
Dependent Claim
31 words
The microwave equipment as claimed in claim 9, wherein said reflecting element is formed of an iris filter having a slit, a longitudinal direction of which is parallel with said probe.
Claim 16
Dependent Claim
103 words
A satellite broadcasting receiver comprising two units, each of which contains a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and microwave circuit having a strip line provided around said circular waveguide and connected with said probe, and a parabolic antenna, said two units being connected with each other such that said circular waveguides have 90 degrees-shifted relative position of said probes with respect to an axis of said circular waveguide, said circular waveguides receiving two kinds of microwaves polarized perpendicular to each other caught by said parabolic antenna.
Claim 17
Dependent Claim
103 words
A satellite broadcasting receiver comprising two units, each of which contains a circular waveguide, a strip-line-shaped probe projected into said circular waveguide, a reflecting element provided backward from said probe in said circular waveguide and microwave circuit having a strip line provided around said circular waveguide and connected with said probe, and a parabolic antenna, said two units being connected with each other such that said circular waveguides have 90 degrees-shifted relative position of said probes with respect to an axis of said circular waveguide, said circular waveguides receiving two kinds of microwaves polarized perpendicular to each other caught by said parabolic antenna.
References Cited (Backward Citations)
No citation records indexed.
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