DISTRIBUTED DUPLEXER CONFIGURATION FOR BLOCKING AND LINEARITY
First Claim
1. A remote unit, comprising.a duplexer couplable between (i) a common port and (ii) a receive path and a transmit path, the common port couplable to an antenna for transmitting downlink signals and receiving uplink signals;
- anda band-pass filter between a first amplifier and a second amplifier, the first amplifier and the second amplifier forming a low-noise amplifier in the receive path.
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Accused Products
Abstract
A telecommunications system may be configured to impove linearity and blocking. In some aspects, the telecommunications system may include a duplexer for coupling a common port to a receive path and a transmit path. A distributed low-noise amplifier having two or more separate active devices (e.g., amplifiers) may be positioned in the receive path. A filtering element (e.g., a band-pass filter) may be positioned between the two or more separate active devices. A signal may be routed by the duplexer through the distributed low-noise amplifier. The filtering element may attenuate transmit signals in the receive path.
98 Citations
20 Claims
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1. A remote unit, comprising.
a duplexer couplable between (i) a common port and (ii) a receive path and a transmit path, the common port couplable to an antenna for transmitting downlink signals and receiving uplink signals; - and
a band-pass filter between a first amplifier and a second amplifier, the first amplifier and the second amplifier forming a low-noise amplifier in the receive path. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A telecommunications system, comprising:
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a duplexer couplable between (i) a common port and (ii) a receive path and a transmit path; a distributed low-noise amplifier having two or more separate active devices; and at least one filtering element positioned between the two or more separate active devices. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method, comprising:
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receiving a signal at a common port coupled to a receive path and a transmit path by a duplexer; routing the signal through a first amplifier and a second amplifier in the receive path, the first amplifier and the second amplifier together forming a low-noise amplifier; and attenuating a transmit signal in the receive path using a band-pass filter positioned between the first amplifier and the second amplifier. - View Dependent Claims (18, 19, 20)
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Specification