SIGNAL TRANSMITTING-RECEIVING APPARATUS

• US 20160164568A1
• Filed: 12/08/2015
• Published: 06/09/2016
• Est. Priority Date: 12/08/2014
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: KIM, Hong In
• Granted Patent: US 9,825,599 B2
• Time in Patent Office: Days
• CPC Class Codes: H03F 2200/111 the amplifier being a dual or triple band amplifier, e.g. 900 and 1800 MHz, e.g. switched or not switched, simultaneously or not
• CPC Class Codes: H03F 2200/294 the amplifier being a low noise amplifier [LNA]
• CPC Class Codes: H03F 2200/451 the amplifier being a radio frequency amplifier
• CPC Class Codes: H03F 2203/7209 the gated amplifier being switched from a first band to a second band
• CPC Class Codes: H03F 3/19 with semiconductor devices only
• CPC Class Codes: H03F 3/68 Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics power amplifiers using a combination of several semiconductor amplifiers H03F3/211; combinations of amplifiers using coupling networks with distributed constants H03F3/602
• CPC Class Codes: H03F 3/72 Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

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.

Claims

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 the Bluetooth signal and a Wi-Fi signal that are transmitted and received; and

an isolation unit configured to suppress a signal coupling between the transmitted Bluetooth signal and the Bluetooth signal receiving lines.

2. The signal transmitting-receiving apparatus of claim 1, wherein the isolation unit comprises pin diodes.

3. The signal transmitting-receiving apparatus of claim 2, wherein the pin diodes are 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.

4. The signal transmitting-receiving apparatus of claim 2, wherein anodes of the pin diodes are connected to the Bluetooth signal receiving lines, and

cathodes of the pin diodes are connected to a ground.

5. The signal transmitting-receiving apparatus of claim 2, wherein a number of pin diodes is proportional to a number of Bluetooth signal receiving lines.

6. 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.

7. The signal transmitting-receiving apparatus of claim 6, 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.

8. The signal transmitting-receiving apparatus of claim 7, 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.

9. 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 the 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.

10. The signal transmitting-receiving apparatus of claim 9, 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.

11. The signal transmitting-receiving apparatus of claim 9, 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.

12. The signal transmitting-receiving apparatus of claim 9, 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.

13. The signal transmitting-receiving apparatus of claim 12, 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.

14. The signal transmitting-receiving apparatus of claim 13, 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.

15. A signal transmitting-receiving apparatus, comprising:

a controller configured to generate at least one of a Bluetooth signal and a Wi-Fi signal;

a first switching section configured to connect the controller through a Bluetooth signal transmitting-receiving line to a Bluetooth antenna to transmit the Bluetooth signal; and

a second switching section configured to connect with the first switching section through Bluetooth signal receiving lines and an isolation unit to receive Bluetooth signals from antennas, and configured to at least one of connect the antennas to Wi-Fi signal transmitting-receiving lines to transmit the Wi-Fi signal, and connect the antennas to the Wi-Fi signal transmitting-receiving lines to receive and relay Wi-Fi signals to the controller, wherein the isolation unit suppresses a signal coupling between the Bluetooth signal to be transmitted and the Bluetooth signal receiving lines.

16. The signal transmitting-receiving apparatus of claim 15, wherein the isolation suppresses the transmitted Bluetooth signal from being coupled to the Wi-Fi signal receiving terminal along the Bluetooth signal receiving lines

17. The signal transmitting-receiving apparatus of claim 15, 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.