APPARATUS AND METHOD FOR REMOVING INTERFERENCE SIGNAL USING SELECTIVE FREQUENCY PHASE CONVERTER
First Claim
1. An apparatus for removing an interference signal using a selective frequency phase converter, the apparatus comprising:
- a first phase converter configured to convert a phase of a received RF signal in order to differentially output first and second signals having a phase difference of 180°
from each other;
a second phase converter configured to selectively convert the phase of a signal of a particular frequency band in the first signal by a certain size;
a third phase converter configured to selectively convert the phase of a signal of a particular frequency band in the second signal by a certain size; and
an adder configured to add an output from the second phase converter and an output from the third phase converter,wherein the signal of the particular frequency band output from the second phase converter and the signal of the particular frequency band output from the third phase converter do not have a phase difference of 180°
from each other.
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Abstract
An apparatus and method for removing an interference signal using a selective frequency phase converter are disclosed. The apparatus for removing an interference signal using a selective frequency phase converter includes: a first phase converter configured to convert a phase of a received RF signal to differentially output first and second signals having a phase difference of 180° from each other; a second phase converter configured to receive the first signal and selectively convert the phase of a particular frequency band; a third phase converter configured to receive the second signal and selectively convert the phase of a particular frequency band; a timing controller configured to correct a signal delay time between the output from the second phase converter and that of the third phase converter; and an adder configured to add an output from the second phase converter and an output from the third phase converter, wherein the second and third phase converters phase-convert the first and second signals such that the phases of the signals of the particular frequency bands do not have a phase difference of 180° from each other.
19 Citations
8 Claims
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1. An apparatus for removing an interference signal using a selective frequency phase converter, the apparatus comprising:
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a first phase converter configured to convert a phase of a received RF signal in order to differentially output first and second signals having a phase difference of 180°
from each other;a second phase converter configured to selectively convert the phase of a signal of a particular frequency band in the first signal by a certain size; a third phase converter configured to selectively convert the phase of a signal of a particular frequency band in the second signal by a certain size; and an adder configured to add an output from the second phase converter and an output from the third phase converter, wherein the signal of the particular frequency band output from the second phase converter and the signal of the particular frequency band output from the third phase converter do not have a phase difference of 180°
from each other. - View Dependent Claims (2, 3, 4, 5)
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6. A method for removing an interference signal using a selective frequency phase converter, the method comprising:
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receiving an RF signal; converting a phase of the received RF signal to differentially output first and second signals having a 180°
phase difference from each other;selectively converting the phase of a signal of a particular frequency band of the first signal by a certain size; selectively converting the phase of a signal of a particular frequency band of the second signal by a certain size; and adding the selectively phase-converted first and second signals, wherein after the first and second signals have been selectively phase-converted, the signal of the particular band of the first signal and the signal of the particular frequency band of the second signal do not have a 180°
phase difference from each other; - View Dependent Claims (7, 8)
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Specification