Patent ID: 11936417
Assignee: KMW INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A time-division duplex (TDD) antenna apparatus transmitting and receiving a downlink signal and an uplink signal, comprising:
a transmitter comprising a transmission antenna module and configured to transmit a downlink signal through a first path;
a receiver comprising a reception antenna module and configured to receive an uplink signal through a second path separated from the first path without a portion overlapped with the first path; and
a controller configured to control the transmitter and the receiver,
wherein:
the transmission antenna module comprises:
a power amplifier provided on the first path and configured to amplify power of a transmission signal;
a transmission filter provided on the first path and configured to generate the downlink signal by filtering a frequency of the transmission signal amplified by the power amplifier; and
at least one transmission antenna provided on the first path and configured to transmit the downlink signal filtered and generated by the transmission filter, and
wherein the reception antenna module comprises:
a plurality of reception antennas provided on the second path and configured to receive the uplink signal;
a low noise amplifier provided on the second path and configured to low-noise-amplify the uplink signal received by the plurality of reception antennas; and
a reception filter provided on the second path and configured to filter a frequency of the uplink signal low-noise-amplified by the low noise amplifier, and
wherein the low noise amplifier is disposed between the plurality of reception antennas and the reception filter along the second path along which the uplink signal is received,

wherein:
the reception antenna module further comprises a combiner provided between the low noise amplifier and the reception filter along the second path and configured to combine a plurality of uplink signals received by the plurality of reception antennas, and
the low noise amplifier is provided between each of the plurality of reception antennas and the combiner along the second path.