Antenna

• US 20090237312A1
• Filed: 03/13/2009
• Published: 09/24/2009
• Est. Priority Date: 03/24/2008
• Status: Abandoned Application

• Current Assignee: Edward A. Schober, James W. Pollock
• Original Assignee: Edward A. Schober, James W. Pollock
• Inventors: Schober, Edward A., Pollock, James W.
• Application Number:
  US12/381,602
• Publication Number:
  US 20090237312A1
• Time in Patent Office: Days
• US Class Current: 343/703
• CPC Class Codes: H01Q 1/002 Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
• CPC Class Codes: H01Q 3/26 varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture H01Q3/12, H01Q3/22, H01Q3/24 take precedence
• CPC Class Codes: H01Q 3/267 Phased-array testing or checking devices

Abstract

The present invention involves a transmitting antenna system that includes at least one high impedance transmitting antenna element, a voltage sampling device, and monitoring equipment. The antenna element(s) each have a driving point that receives radio signals from a radio frequency power source. A voltage sampling device measures the voltage magnitude and phase of the radio signal at the driving point of each antenna elements. A voltage sampling device is physically located near each of the antenna elements being monitored and each voltage sampling device transmits information relating to phase and voltage magnitude to the monitoring equipment that is located remote of at least one of the antenna elements. The monitoring equipment can compare the phase and voltage magnitude of each of the antenna elements in the transmitting antenna system to a pre-determined set of values and/or to the values of the other antenna element(s) in the transmitting antenna system.

Claims

1. A transmitting antenna system, comprising:

at least one antenna element having a driving point, the driving point receiving a radio signal from a radio frequency power source, where the radio signal has a phase and a voltage magnitude;

a voltage sampling device that measures the voltage magnitude and the phase at the driving point of the at least one antenna element;

wherein the antenna element is a high impedance transmitting antenna and the driving point is a high impendence point; and

wherein the voltage sampling device is physically located near one of the at least one antenna elements; and

wherein the voltage sampling device is electrically connected to a monitoring equipment that remote of at least one of the at least one antenna element.

2. The transmitting antenna system of claim 1 wherein the monitoring equipment compares the phase and voltage magnitude to pre-determined values.

3. The transmitting antenna system of claim 1 wherein there are at least two antenna elements.

4. The transmitting antenna system of claim 3, wherein the monitoring equipment is electrically connected to the at least two of the at least two antenna elements.

5. The transmitting antenna system of claim 4, wherein the monitoring equipment compares the phase and voltage magnitude of each antenna element to which the monitoring equipment is connected to at least one other antenna element to which the monitoring equipment is electrically connected.

6. The transmitting antenna system of claim 4, wherein the monitoring equipment compares the phase and voltage magnitude of the at least two antenna elements to pre-determined values.

7. The transmitting antenna system of claim 3, wherein the monitoring equipment is located remote of at least one of the at least two antenna elements.

8. The transmitting antenna system of claim 3, wherein the monitoring equipment is located remote of all of the at least two antenna elements.

9. The transmitting antenna system of claim 1, wherein the monitoring equipment is located at ground level.

10. The transmitting antenna system of claim 1, wherein the voltage sampling device includes a high voltage divider and a low sensitivity voltage divider.

11. The transmitting antenna system of claim 1, wherein the voltage sampling device includes a voltage signal amplifier.

12. The transmitting antenna system of claim 1, wherein the voltage sampling device includes a gas discharge over voltage protector that protects the voltage signal amplifier from a surge.

13. The transmitting antenna system of claim 3, wherein the voltage sampling device has a first pre-determined sensitivity and a second pre-determined sensitivity and a control module is in electrical communication with the voltage sampling device such that the control module can change the voltage sampling device from the first pre-determined sensitivity to the second pre-determined sensitivity, and vice versa.

14. The transmitting antenna system of claim 13, wherein a switch is coupled to the control module.

15. The transmitting antenna system of claim 14, wherein the switch enables a user to manually change the sensitivity of the voltage sampling device from the first pre-determined sensitivity to the second pre-determined sensitivity, and vice versa.

16. The transmitting antenna system of claim 13, wherein the control module can automatically change the sensitivity of the voltage sampling device from the first pre-determined sensitivity to the second pre-determined sensitivity, and vice versa, upon a pre-determined set of conditions being met.

17. The transmitting, antenna system of claim 1 where a sampled voltage is divided in a circuit comprising a series connection of two or more circuit elements having a first end and a second end, the first end of which is connected to ground and the second end of which is connected to the voltage to sampled.

18. The transmitting antenna system of claim 17 where the series connection of two or more circuit elements comprising a voltage divider includes electrical capacitors.