Signal transmitting-receiving apparatus
A signal transmitting-receiving apparatus includes a first switching section, a second switching section, a controller, and an isolation unit. The first switching section is configured to connect Bluetooth signal receiving lines to a Bluetooth antenna. The second switching section configured to connect antennas to one of a Bluetooth receiving terminal, a Wi-Fi signal receiving terminal, and a Wi-Fi signal transmitting terminal. The controller is configured to signal process the Bluetooth signal and a Wi-Fi signal that are transmitted and received. The isolation unit is configured to suppress a signal coupling between the transmitted Bluetooth signal and the Bluetooth signal receiving lines.
1. A signal transmitting-receiving apparatus, comprising:
a first switching section configured to connect Bluetooth signal receiving lines to a Bluetooth antenna;
a second switching section configured to connect antennas to one of a Bluetooth receiving terminal, a Wi-Fi signal receiving terminal, and a Wi-Fi signal transmitting terminal;
a controller configured to signal process a Bluetooth signal and a Wi-Fi signal that are transmitted and received; and
an isolation unit comprising diodes connected between the first switching section and the second switching section and configured to suppress the Bluetooth signal from interfering with the Wi-Fi signal receiving terminal.
2. The signal transmitting-receiving apparatus of claim 1 , wherein the second switching section further comprises:
diplexers configured to be connected to the antennas to respectively provide signal transfer paths of a Wi-Fi signal of a first frequency band and a Wi-Fi signal of a second frequency band; and
switching parts configured to be connected to the diplexers to switch transmission and reception of the Wi-Fi signal of the first frequency band and the Wi-Fi signal of the second frequency band.
3. The signal transmitting-receiving apparatus of claim 2 , wherein each of the switching parts comprises:
a first switching unit configured to switch the transmission and reception of the Wi-Fi signal of the first frequency band; and
a second switching unit configured to switch the transmission and reception of the Wi-Fi signal of the second frequency band and switching a signal transfer path of the Bluetooth signal received from one of the antennas transmitting and receiving the Wi-Fi signal of the second frequency band.
4. The signal transmitting-receiving apparatus of claim 3 , wherein the second switching unit further comprises:
low noise amplifiers configured to amplify a level of the received Wi-Fi signal of the second frequency band.
5. The signal transmitting-receiving apparatus of claim 1 , wherein the isolation unit is configured to suppress the Bluetooth signal from interfering with the Wi-Fi signal receiving terminal during a Bluetooth Angle of Arrival (AOA) operation.
6. The signal transmitting-receiving apparatus of claim 5 , wherein the first switching section and the second switching section are simultaneously connected.
7. An apparatus, comprising:
a first switching section configured to connect Bluetooth signal receiving lines to a Bluetooth antenna;
a second switching section configured to connect antennas to one of a Bluetooth receiving terminal, a Wi-Fi signal receiving terminal, and a Wi-Fi signal transmitting terminal;
a controller configured to signal process a Bluetooth signal and a Wi-Fi signal that are transmitted and received; and
an isolation unit configured to suppress the Bluetooth signal from being coupled to the Wi-Fi signal receiving terminal along the Bluetooth signal receiving lines,
wherein the isolation unit further comprises:
pin diodes connected in a middle position of the Bluetooth signal receiving lines,
anodes of the pin diodes configured to be connected to the Bluetooth receiving terminal of the second switching section, and
cathodes of the pin diodes configured to be connected to the Bluetooth receiving terminal of the first switching section.
8. An apparatus, comprising:
a first switching section configured to connect Bluetooth signal receiving lines to a Bluetooth antenna;
a second switching section configured to connect antennas to one of a Bluetooth receiving terminal, a Wi-Fi signal receiving terminal, and a Wi-Fi signal transmitting terminal;
a controller configured to signal process a Bluetooth signal and a Wi-Fi signal that are transmitted and received; and
an isolation unit configured to suppress the transmitted Bluetooth signal from being coupled to the Wi-Fi signal receiving terminal along the Bluetooth signal receiving lines,
wherein the isolation unit further comprises:
pin diodes configured to be connected between the Bluetooth signal receiving lines and a ground,
anodes of the pin diodes configured to be connected to the Bluetooth signal receiving lines, and
cathodes of the pin diodes configured to be connected to a ground.