Portable multiband antenna

• US 8,169,379 B2
• Filed: 02/13/2009
• Issued: 05/01/2012
• Est. Priority Date: 02/13/2009
• Status: Active Grant

• Current Assignee: Javad GNSS, Inc.
• Original Assignee: Javad GNSS, Inc.
• Inventors: Dubrovsky, Dmitry, Petrusinski, Victor, Vyazov, Alexander Andreevich, Zhukov, Vladimir
• Primary Examiner(s): Duong, Dieu H
• Application Number:
  US12/371,503
• Publication Number:
  US 20100211314A1
• Time in Patent Office: 1,173 Days
• Field of Search: 343/906, 343/878, 343/879, 343/895, 343/772, 343/700.MS, 342/357.77, 342/357.36
• US Class Current: 343/879
• CPC Class Codes: G01S 19/13 Receivers
• CPC Class Codes: G01S 19/36 relating to the receiver frond end
• CPC Class Codes: G01S 19/41 Differential correction, e.g. DGPS [differential GPS]

Abstract

A portable DGPS navigation apparatus is provided. The apparatus includes a receiver assembly and a DGPS antenna assembly. The receiver assembly includes a GNSS antenna, a GNSS receiver, and a DGPS modem. The DGPS antenna assembly includes a DGPS antenna; a top connector for coupling the DGPS antenna assembly to the receiver assembly such that the receiver assembly and DGPS antenna assembly are aligned with a geodetic pole, and a bottom connecter.

Claims

1. A navigation apparatus for decreasing interference between Global Navigation Satellite System (GNSS) signals and Differential Global Positioning System (DGPS) signals, the apparatus comprising:

a receiver assembly for receiving GNSS positioning information, wherein the receiver assembly comprises;

a GNSS antenna,

a GNSS receiver, and

a DGPS modem; and

a DGPS antenna assembly, wherein the DGPS antenna assembly comprises;

a DGPS antenna;

a top connector for coupling the DGPS antenna assembly to the receiver assembly such that the receiver assembly and DGPS antenna assembly are aligned with a geodetic pole, and

a bottom connecter.

2. The navigation apparatus of claim 1, further comprising a radio frequency (RF) cable for connecting the DGPS antenna to the DGPS modem.

3. The navigation apparatus of claim 1, wherein the DGPS antenna is one of a group consisting of:

a pin, strip, spiral, and waveguide.

4. The navigation apparatus of claim 1, wherein the bottom connector connects the DGPS antenna assembly to a support.

5. The navigation apparatus of claim 1, wherein the receiver assembly further comprises a receiver connector assembly for connecting the receiver assembly to the top connector of the DGPS antenna assembly, the receiver connector assembly comprising at least one washer connected to a plug and an o-ring.

6. The navigation apparatus of claim 1, wherein the DGPS antenna assembly further comprises an antenna tube, wherein the DGPS antenna is located within the antenna tube.

7. The navigation apparatus of claim 1, wherein the top connector for coupling the DGPS antenna assembly to the receiver assembly is a thread.

8. The navigation apparatus of claim 7, wherein the thread is brass.

9. The navigation apparatus of claim 1, wherein the bottom connecter is for connecting the DGPS antenna assembly to a support.

10. The navigation apparatus of claim 9, wherein the bottom connector is a thread.

11. The navigation apparatus of claim 10, wherein the thread is brass.