Abstract: Disclosed are a spatial multiplexing method and apparatus using polarization in a multi-beam system. As the spatial multiplexing method using polarization in a multi-beam system, an embodiment of the present invention provides a spatial multiplexing method including determining different phases and different polarizations to be applied to a first beam and a second beam, precoding a signal so that the first beam and the second beam have the determined different phases, and converting polarization of the precoded signal so that the first beam and the second beam have the determined different polarizations.

Abstract: Proposed are an antenna RF module and an antenna apparatus including the antenna RF modules. The antenna RF module includes an amplification unit module which is arranged between a main board and an RF filter and into which at least one analog amplification element is built.

Abstract: The present disclosure relates to an antenna apparatus, and especially comprises: a main body module in which a main board is mounted; an RF module which is fixed to the front so that an intermediate outside air layer is formed between the RF module and the main body module, and in which an RF filter unit and an antenna element unit are mounted; and an amplification unit module which is disposed so as to be exposed in the intermediate outside air layer between the main body module and the RF module, and comprises an amplification unit substrate having analog amplification elements mounted thereon, wherein heat generated from heating elements mounted on the main board is dissipated through at least any one of the front and back of the main body module, and heat generated from the amplification unit module is directly dissipated through the intermediate outside air layer, and thus the advantage of enabling maximum heat dissipation performance is provided.

Abstract: Proposed are an antenna RF module and an antenna apparatus including the antenna RF modules. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a front surface of the RF filter, at least one reflector grill pin arranged between the RF filter and the radiation element module and grounding (GND) the radiation element module, outside air being introduced from in front of the RF filter to in back of the RF filter or being discharged from in back of the RF filter to in front of the RF filter through the at least one reflector grill pin, and a radome cover combined with the front surface of the RF filter and protecting the radiation element module from the outside. The antenna RF module provides the advantage of greatly improving overall performance in heat dissipation.

Abstract: The present invention relates to an antenna RF module, an RF module assembly, and an antenna device including same. Particularly, the present invention comprises an RF filter which has at least four outer side surfaces, a radiation element module which is disposed on one surface of the outer side surfaces of the RF filter, an amplifier substrate which is disposed on another surface of the outer side surfaces of the RF filter and on which an analogue amplification element is mounted, and a reflector which is disposed between the RF filter and the radiation element module to ground (GND) the radiation element module and also mediate the outwardly dissipating heat generated by the RF filter, wherein socket pins are coupled to a main board disposed at an antenna housing in a unit of a module.

Abstract: The present disclosure relates to an antenna RF module and an antenna apparatus including the antenna RF modules. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a front surface of the RF filter, at least one reflector grill pin arranged between the RF filter and the radiation element module and grounding (GND) the radiation element module, outside air being introduced from in front of the RF filter to in back of the RF filter or being discharged from in back of the RF filter to in front of the RF filter through the at least one reflector grill pin, and a radome combined with the front surface of the RF filter and protecting the radiation element module from the outside.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a first side of the RF filter, and a reflector arranged between the RF filter and the radiation element module in such a manner as to ground (GND) the radiation element module and, at the same time, to serve as an intermediary for dissipating heat generated in the RF filter to the outside. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The advantage of greatly improving performance in heat dissipation can be achieved.

Abstract: The present disclosure relates to a radio transmission or reception apparatus and a beam forming method thereof. The apparatus according to the present disclosure comprises: an array antenna for forming multiple beams having different directivities so as to transmit or receive signals through the multiple beams; a digital unit for synthesizing an orthogonal polarization pair so as to generate multi-beam signals for forming the multiple beams; and an RF unit for frequency-converting the multi-beam signals so as to output each of the frequency converted multi-beam signals to the array antenna.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF module, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF filter, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF module, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.

Abstract: Disclosed is a multi-band transmitter for transmitting a multi-band signal. The multi-band transmitter comprises: a pre-distortion unit including a first digital pre-distorter (DPD) which pre-distorts a first band signal and a second DPD which pre-distorts a second band signal discontinuous from the first band signal; a conversion unit which analog-converts the pre-distorted first band signal and the pre-distorted second band signal; an amplification unit including a first power amplifier (PA), which amplifies the analog-converted first band signal, and a second PA, which amplifies the analog-converted second band signal; and a feedback unit which digital-converts the amplified first band signal to feed the digital-converted first band signal back to the first DPD and digital-converts the amplified second band signal to feed the digital-converted second band signal back to the second DPD.

Abstract: Disclosed are a spatial multiplexing method and apparatus using polarization in a multi-beam system. As the spatial multiplexing method using polarization in a multi-beam system, an embodiment of the present invention provides a spatial multiplexing method including determining different phases and different polarizations to be applied to a first beam and a second beam, precoding a signal so that the first beam and the second beam have the determined different phases, and converting polarization of the precoded signal so that the first beam and the second beam have the determined different polarizations.

Abstract: The present disclosure in some embodiments relates to an automatic configuration tool to configure and install a distributed antenna system and an installation guide using the same. According to an aspect of the present disclosure, a user or a designer is graphically provided with a user interface to define a shape of the distributed antenna system, and is provided with a configuration tool for generating a configuration file for a configuration of an actual distributed antenna system. According to another aspect of the present disclosure, there is suggested a distributed antenna system for providing an installation guide function by using a configuration file generated in the configuration tool.

Abstract: A TDD (Time Division Duplex) switching control apparatus in a DAS (Distributed Antenna System) is provided. The present disclosure in some embodiments provides an apparatus, in a TDD switching control of a distributed antenna system, for transmitting a switching signal by using correlation property between a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal) and a property of a matched filter.

Abstract: An apparatus for implementing an adaptive sectorization in a DAS (Distributed Antenna System) is provided. In some embodiment of the present disclosure, a DAS that supports an adaptive sectorization has the flexibility of supporting multiple sectors simply with an extension of STM (Sectorization Module) without being affected by the hardware structure. Where no sector splitting is needed, the STM is replaced by a COM (Head-end Combining Module) to provide a simple structure for supporting the sectors.

Abstract: Some embodiments of the present disclosure relate to an analog distributed antenna system, and its operating method, provided with an orthogonal frequency division multiplexing (OFDM) high-speed modem for use in transceiving control signals between a main unit and remote units in order to effectively control the remote units connected to the main unit.

Abstract: The present disclosure in some embodiments relates to an automatic configuration tool to configure and install a distributed antenna system and an installation guide using the same. According to an aspect of the present disclosure, a user or a designer is graphically provided with a user interface to define a shape of the distributed antenna system, and is provided with a configuration tool for generating a configuration file for a configuration of an actual distributed antenna system. According to another aspect of the present disclosure, there is suggested a distributed antenna system for providing an installation guide function by using a configuration file generated in the configuration tool.

Abstract: A TDD (Time Division Duplex) switching control apparatus in a DAS (Distributed Antenna System) is provided. The present disclosure in some embodiments provides an apparatus, in a TDD switching control of a distributed antenna system, for transmitting a switching signal by using correlation property between a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal) and a property of a matched filter.

Abstract: An apparatus for implementing an adaptive sectorization in a DAS (Distributed Antenna System) is provided. In some embodiment of the present disclosure, a DAS that supports an adaptive sectorization has the flexibility of supporting multiple sectors simply with an extension of STM (Sectorization Module) without being affected by the hardware structure. Where no sector splitting is needed, the STM is replaced by a COM (Head-end Combining Module) to provide a simple structure for supporting the sectors.