← Back to Patent Explorer
US4544900A Expired / Lapsed US ⏱️ 0.0 years remaining

Polarized signal receiver system

Assignee: Chaparral Communications Inc
•
Filing: 1982-07-30
•
Granted: 1985-10-01
•
Expires: 2002-07-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A rotatable polarized signal receiver, having a rectangular waveguide orthogonally coupled to a circular waveguide, has a receiver probe portion oriented in the circular waveguide and a signal launch probe portion extending into the rectangular waveguide. A dielectric insert located in the circular waveguide transforms circularly polarized signals to linearly polarized signals. Since the receiver probe portion can be rotated right circular or left circular polarization can be selected and received.

Inventors

  • 👤 H. Taylor Howard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 00:16
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/082; H01P1/00; H01P1/165; H01P1/17; H01Q; H01Q21/00; H01Q21/24; H01Q21/245

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 198 words
A polarized signal receiver comprising: a first waveguide for transmitting polarized signals; a circular waveguide for receiving polarized signals at one end and coupled to the first waveguide at the other end, said other end having a rear wall; an insulator rod, rotatably mounted through said other end of the circular waveguide; signal conducting means, fixedly mounted in the insulator rod concentric with the axis of rotation thereof having a receiver probe portion oriented in the circular waveguide orthogonal to the axis of said circular waveguide for receiving one polarization of the incident signal, a launch probe portion concentric with the insulator rod and extending into the first waveguide for launching said signal therein, and a transmission line portion, having a first section contoured to the inside surface of the circular wall, and substantially parallel to the axis, of the circular waveguide, and having a second section contoured to the inside surface, and substantially parallel to the plane, of the rear wall of the circular waveguide, for connecting the receiver probe portion to the launch probe portion; and transformation means intermediate the incoming signals and the signal conducting means for transforming circularly polarized signals to linearly polarized signals.
Claim 2
Dependent Claim 198 words
A polarized signal receiver comprising: a first waveguide for transmitting polarized signals; a circular waveguide for receiving polarized signals at one end and coupled to the first waveguide at the other end, said other end having a rear wall; an insulator rod, rotatably mounted through said other end of the circular waveguide; signal conducting means, fixedly mounted in the insulator rod concentric with the axis of rotation thereof having a receiver probe portion oriented in the circular waveguide orthogonal to the axis of said circular waveguide for receiving one polarization of the incident signal, a launch probe portion concentric with the insulator rod and extending into the first waveguide for launching said signal therein, and a transmission line portion, having a first section contoured to the inside surface of the circular wall, and substantially parallel to the axis, of the circular waveguide, and having a second section contoured to the inside surface, and substantially parallel to the plane, of the rear wall of the circular waveguide, for connecting the receiver probe portion to the launch probe portion; and transformation means intermediate the incoming signals and the signal conducting means for transforming circularly polarized signals to linearly polarized signals.
Claim 3
Dependent Claim 47 words
A polarized signal reciver as in claim 1 wherein said transformation means comprise dielectric material having thickness, width and length dimensions, said thickness dimension being much less than the width or length dimensions and being oriented in parallel with the axis of symmetry of the circular waveguide.
Claim 4
Dependent Claim 28 words
A polarized signal receiver as in claim 1 wherein the receiver probe portion receives the linearly polarized signal from the transformation means with which it is co-linearly aligned.
Claim 5
Dependent Claim 32 words
A polarized signal receiver in claim 3 wherein the tranformation means simultaneously transforms both left and right circularly polarized signals into linearly polarized signals which are rotated ninety degrees from each other.
Claim 6
Dependent Claim 25 words
A polarized signal receiver as in claim 4 wherein the receiver probe portion may be rotated for receiving the linearly polarized from the transformation means.

References Cited (Backward Citations)

US2599753A Cited
US2548821A Cited
US2880399A Cited
US4168504A Cited
US4420729A Cited
US4414516A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-09-30 1989-04-01 1989-10-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-09-30 1993-04-01 1993-10-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-09-30 1997-04-01 1997-10-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag