System and method for launching guided electromagnetic waves with impedance matching
First Claim
1. A system, comprising:
- an impedance matching circuit that includes one or more adjustable circuit elements, wherein the impedance matching circuit receives an input signal and generates an output signal in response to the input signal;
a guided wave launcher configured to generate, in response to the output signal, a first guided electromagnetic wave along a surface of a transmission medium, wherein the first guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, and wherein the first guided electromagnetic wave is within a non-optical frequency band;
a controller configured to generate one or more control signals in response to a channel quality indicator, wherein the channel quality indicator is received via a second guided electromagnetic wave from a remote launcher, wherein the one or more control signals adjust the one or more adjustable circuit elements of the impedance matching circuit, wherein adjustment of the one or more adjustable circuit elements facilitates reducing an impedance mismatch of the guided wave launcher.
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Accused Products
Abstract
In accordance with one or more embodiments, a system includes an impedance matching circuit that includes one or more adjustable circuit elements, wherein the impedance matching circuit receives an input signal and generates an output signal in response to the input signal. A guided wave launcher is configured to generate, in response to the output signal, a first guided electromagnetic wave along a surface of a transmission medium, wherein the first guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path. A controller is configured to generate one or more control signals in response to a channel quality indicator, wherein the one or more control signals adjust the one or more adjustable circuit elements of the impedance matching circuit, wherein adjustment of the one or more adjustable circuit elements facilitates reducing an impedance mismatch of the guided wave launcher.
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Citations
20 Claims
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1. A system, comprising:
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an impedance matching circuit that includes one or more adjustable circuit elements, wherein the impedance matching circuit receives an input signal and generates an output signal in response to the input signal; a guided wave launcher configured to generate, in response to the output signal, a first guided electromagnetic wave along a surface of a transmission medium, wherein the first guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, and wherein the first guided electromagnetic wave is within a non-optical frequency band; a controller configured to generate one or more control signals in response to a channel quality indicator, wherein the channel quality indicator is received via a second guided electromagnetic wave from a remote launcher, wherein the one or more control signals adjust the one or more adjustable circuit elements of the impedance matching circuit, wherein adjustment of the one or more adjustable circuit elements facilitates reducing an impedance mismatch of the guided wave launcher. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method, comprising:
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receiving an input signal at an impedance matching circuit from a transmitter; generating, via the impedance matching circuit, an output signal in response to the input signal; generating, in response to the output signal and via a guided wave launcher, a guided electromagnetic wave along a surface of a transmission medium, wherein the guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, and wherein the transmission medium is opaque to optical signals; receiving a channel quality indicator via a second guided electromagnetic wave from a remote launcher; generating one or more control signals in response to the channel quality indicator; and adjusting, in response to the one or more control signals, one or more adjustable circuit elements of the impedance matching circuit, wherein the adjusting compensates for impedance changes of the guided wave launcher resulting from changing weather conditions in an area of the transmission medium. - View Dependent Claims (15, 16, 17, 18)
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19. A device, comprising:
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circuit means for receiving an input radio signal at an impedance matching circuit and generating an output signal in response to the input signal; launcher means for generating, in response to the output signal, a guided electromagnetic wave along a surface of a transmission medium, wherein the guided electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path, and wherein the guided electromagnetic wave has a non-optical carrier frequency; controller means for generating one or more control signals in response to a channel quality indicator received via a second guided electromagnetic wave from a remote launcher, wherein the one or more control signals adjust an impedance of the circuit means, wherein the impedance reduces an impedance mismatch of the launcher means. - View Dependent Claims (20)
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Specification