Variable frequency receivers for guided surface wave transmissions
Disclosed herein are various embodiments for a guided surface wave receiver, comprising circuitry that identifies at least one frequency from a plurality of available frequencies associated with a transmission of a plurality of guided surface waves along a terrestrial medium; and circuitry that adjusts a frequency at which the guided surface wave receiver receives the transmission to the at least one frequency via the terrestrial medium.
1. An apparatus, comprising:
a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling along a terrestrial medium;
an electrical load coupled to the guided surface wave receive structure, the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave;
processing circuitry that identifies at least one frequency from a plurality of available frequencies associated with a transmission of the guided surface wave traveling along the terrestrial medium; and
processing circuitry that adjusts a frequency at which the guided surface wave receive structure receives the transmission to the at least one frequency via the terrestrial medium.
2. The apparatus of claim 1 , wherein the processing circuitry that adjusts the frequency at which the guided surface wave receive structure receives the transmission further comprises processing circuitry that adjusts a capacitance of a variable capacitor.
3. The apparatus of claim 1 , wherein the processing circuitry that adjusts the frequency at which the guided surface wave receive structure receives the transmission further comprises processing circuitry that adjusts an inductance of a variable inductor.
4. The apparatus of claim 1 , further comprising a field sensor configured to identify at least the at least one frequency among the plurality of available frequencies.
5. The apparatus of claim 1 , wherein the guided surface wave receive structure further comprises at least one of: a linear probe, a tuned resonator, and a magnetic coil.
6. The apparatus of claim 1 , further comprising a spectrum analyzer configured to identify at least the at least one frequency among the plurality of available frequencies.
7. The apparatus of claim 1 , wherein adjusting the frequency at which the guided surface wave receive structure receives the transmission is performed programmatically by the processing circuitry.
8. A method, comprising:
receiving electrical energy in the form of a guided surface wave using a guided surface wave receive structure;
identifying at least one frequency from a plurality of available frequencies associated with a transmission of a plurality of guided surface waves along a terrestrial medium;
adjusting, by the guided surface wave receiver, a frequency at which the guided surface wave receive structure receives the transmission to the at least one frequency via the terrestrial medium; and
supplying the electrical energy to an electrical load coupled to the guided surface wave receive structure.
9. The method of claim 8 , wherein adjusting the frequency at which the guided surface wave receive structure receives the transmission further comprises adjusting a capacitance of a variable capacitor.
10. The method of claim 8 , wherein adjusting the frequency at which the guided surface wave receive structure receives the transmission further comprises adjusting an inductance of a variable inductor.
11. The method of claim 8 , wherein the guided surface wave receive structure further comprises identifying the at least one frequency among the plurality of available frequencies.
12. The method of claim 8 , wherein the guided surface wave receive structure further comprises at least one of: a linear probe, a tuned resonator, and a magnetic coil.
13. The method of claim 8 , wherein adjusting the frequency at which the guided surface wave receive structure receives the transmission is performed programmatically by the processing circuitry.
14. A system, comprising:
means for obtaining electrical energy from a guided surface wave traveling along a terrestrial medium and providing the electrical energy to an electrical load, the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave;
means for identifying at least one frequency from a plurality of available frequencies associated with a transmission of the guided surface wave traveling along the terrestrial medium; and
means for adjusting a frequency at which the system receives the transmission to the at least one frequency via the terrestrial medium.
15. The system of claim 14 , wherein the means for adjusting the frequency at which the system receives the transmission further comprises means for adjusting a capacitance of a variable capacitor.
16. The system of claim 14 , wherein the means for adjusting the frequency at which the system receives the transmission further comprises means for adjusting an impedance of a variable inductor.
17. The system of claim 14 , further comprising means for identifying the at least one frequency from the plurality of available frequencies.
18. The system of claim 17 , wherein the means for identifying the at least one frequency from the plurality of available frequencies further comprises a field meter or a spectrum analyzer.
19. The system of claim 14 , wherein the means for obtaining the electrical energy from the guided surface wave further comprises at least one of: a linear probe, a tuned resonator, and a magnetic coil.
20. The system of claim 14 , wherein the means for adjusting the frequency at which the system receives the transmission further comprises processing circuitry being configured adjusting the frequency programmatically.