US 2011/0256837 A1 · COHERENT TRANSCEIVER AND RELATED METHOD OF OPERATION

Abstract

A transceiver is provided, comprising: a programmable waveform generator configured to generate a base signal, the programmable waveform generator including a controllable waveform generator configured to generate an initial bandwidth signal having an initial frequency bandwidth; a multiple tone generator configured to generate a plurality of tone signals, each tone signal having a different frequency; one or more bandwidth multiplying circuits; and a control circuit a controller configured to control the operation of the controllable waveform generator, the tone generator and the one or more bandwidth multiplying circuits; a transmit port configured to output the base signal; a receive port configured to accept a received signal; a 90-degree splitter configured to receive the base signal and to generate a first split signal at a 0-degree output and a second split signal at a 90-degree output, the first and second split signals being separated by 90 degrees in phase; a first-mixer configured to mix the received signal and the first split signal to generate a quadrature-phase signal; and a second-mixer configured to mix the received signal and the second split signal to generate an in-phase signal.

Claims18

Dependent claims

A transceiver, comprising:

a programmable waveform generator configured to generate a base signal, the programmable waveform generator including
a controllable waveform generator configured to generate an initial bandwidth signal having an initial frequency bandwidth;
a multiple tone generator configured to generate a plurality of tone signals, each tone signal having a different frequency;
one or more bandwidth multiplying circuits;
and
a control circuit a controller configured to control the operation of the controllable waveform generator, the tone generator and the one or more bandwidth multiplying circuits;
a transmit port configured to output the base signal;
a receive port configured to accept a received signal;
a 90-degree splitter configured to receive the base signal and to generate a first split signal at a 0-degree output and a second split signal at a 90-degree output, the first and second split signals being separated by 90 degrees in phase;
a first-mixer configured to mix the received signal and the first split signal to generate a quadrature-phase signal;
and
a second-mixer configured to mix the received signal and the second split signal to generate an in-phase signal.

9 more elements

A method of operating a transceiver system, comprising:

generating a base signal;
generating a 90-degree shifted signal, the 90-degree shifted signal being a copy of the base signal that is shifted 90 degrees in phase from the base signal;
providing the base signal to a transmit port;
processing the base signal at the transmit port;
receiving a received signal at a receive port;
mixing the received signal with the base signal to generate an in-phase signal;
and]
mixing the received signal with the 90-degree shifted signal to generate a quadrature-phase signal,
wherein the operation of generating the base signal further comprises:
setting an index value I equal to 0;
generating an initial bandwidth signal G0;
performing an (I+1)th multiplier operation, including
receiving an input bandwidth signal GI, the input bandwidth signal GI having a bandwidth BI, a low frequency LI, and a high frequency (LI+BI);
receiving first and second tone signals TI,1 and TI,2;
determining whether a current control state is a first control state or a second control state;
selecting the first tone signal TI,1 as a chosen signal if the current control state is determined to be the first control state;
generating an output bandwidth signal GI+1 such that an output frequency of the output bandwidth signal GI+1 is equal to a sum of an input frequency of the input bandwidth signal GI and a first tone frequency of the first tone signal TI,1, if the current control state is determined to be the first control state;
selecting the second tone signal TI,2 as the chosen signal if the current control state is determined to be the second control state;
and
generating the output bandwidth signal GI+1 such that the output frequency of the output bandwidth signal GI+1 is equal to a difference between a second tone frequency of the second tone signal TI,2 and the input frequency of the input bandwidth signal GI, if the current control state is determined to be the first control state;
determining if additional multiplier operations are required;
incrementing I by 1 and repeating the performing of the (I+1)th multiplier operation and the determining if additional multiplier operations are required if additional multiplier operations are required;
and
setting the output bandwidth signal GI+1 as an operational output if no additional multiplier operations are required.

21 more elements

A method of operating a transceiver system, comprising:

generating a base signal and a frequency-shifted signal, the frequency-shifted signal being a copy of the base signal that is shifted in phase from the base signal;
providing the frequency-shifted signal to a transmit port;
processing the frequency-shifted signal at the transmit port;
receiving a received signal at a receive port;
and
mixing the received signal with the base signal to generate an intermediate frequency signal,
wherein the operation of generating the base signal further comprises:
setting an index value I equal to 0;
generating an initial bandwidth signal G0;
performing an (I+1)th multiplier operation, including
receiving an input bandwidth signal GI, the input bandwidth signal GI having a bandwidth BI, a low frequency LI, and a high frequency (LI+BI);
receiving first and second tone signals TI,1 and TI,2;
determining whether a current control state is a first control state or a second control state;
selecting the first tone signal TI,1 as a chosen signal if the current control state is determined to be the first control state;
generating an output bandwidth signal GI+1 such that an output frequency of the output bandwidth signal GI+1 is equal to a sum of an input frequency of the input bandwidth signal GI and a first tone frequency of the first tone signal TI,1, if the current control state is determined to be the first control state;
selecting the second tone signal TI,2 as the chosen signal if the current control state is determined to be the second control state;
and
generating the output bandwidth signal GI+1 such that the output frequency of the output bandwidth signal GI+1 is equal to a difference between a second tone frequency of the second tone signal TI,2 and the input frequency of the input bandwidth signal GI, if the current control state is determined to be the first control state;
determining if additional multiplier operations are required;
incrementing I by 1 and repeating the performing of the (I+1)th multiplier operation and the determining if additional multiplier operations are required if additional multiplier operations are required;
and
setting the output bandwidth signal GI+1 as an operational output if no additional multiplier operations are required.

19 more elements

A method of operating a transceiver system, comprising:

generating a base signal and a frequency-shifted signal, the frequency-shifted signal being a copy of the base signal that is shifted in phase from the base signal;
providing the base signal to a transmit port;
processing the base signal at the transmit port;
receiving a received signal at a receive port;
and
mixing the received signal with the frequency-shifted signal to generate an intermediate frequency signal,
wherein the operation of generating the base signal further comprises:
setting an index value I equal to 0;
generating an initial bandwidth signal G0;
performing an (I+1)th multiplier operation, including
receiving an input bandwidth signal GI, the input bandwidth signal GI having a bandwidth BI, a low frequency LI, and a high frequency (LI+BI);
receiving first and second tone signals TI,1 and TI,2;
determining whether a current control state is a first control state or a second control state;
selecting the first tone signal TI,1 as a chosen signal if the current control state is determined to be the first control state;
generating an output bandwidth signal GI+1 such that an output frequency of the output bandwidth signal GI+1 is equal to a sum of an input frequency of the input bandwidth signal GI and a first tone frequency of the first tone signal TI,1, if the current control state is determined to be the first control state;
selecting the second tone signal TI,2 as the chosen signal if the current control state is determined to be the second control state;
and
generating the output bandwidth signal GI+1 such that the output frequency of the output bandwidth signal GI+1 is equal to a difference between a second tone frequency of the second tone signal TI,2 and the input frequency of the input bandwidth signal GI, if the current control state is determined to be the first control state;
determining if additional multiplier operations are required;
incrementing I by 1 and repeating the performing of the (I+1)th multiplier operation and the determining if additional multiplier operations are required if additional multiplier operations are required;
and
setting the output bandwidth signal GI+1 as an operational output if no additional multiplier operations are required.

19 more elements

Dependencies are inferred from the claim text.

Coherent transceiver and related method of operation

Life of this patent

Coherent transceiver and related method of operation

Life of this patent

Abstract

Claims18