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Radio frequency switch, radio frequency system and method of operation for controlling switching of transceiving channels

A radio frequency system and switch technology, applied in the circuit field, can solve problems such as limiting the application of diodes, and achieve the effect of improving operational performance

Inactive Publication Date: 2018-08-31
BEKEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large size of the inductor limits the application of the diode in the switch of the transceiver

Method used

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  • Radio frequency switch, radio frequency system and method of operation for controlling switching of transceiving channels
  • Radio frequency switch, radio frequency system and method of operation for controlling switching of transceiving channels
  • Radio frequency switch, radio frequency system and method of operation for controlling switching of transceiving channels

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Embodiment Construction

[0019] Various aspects and examples of the invention will now be described. The following description provides specific details for a thorough understanding and illustration of these examples. However, one skilled in the art will understand that the present invention may be practiced without many of these details. Also, some well-known structures or functions may not be shown or described in detail to avoid unnecessarily obscuring the related description.

[0020] figure 1 A structural block diagram of a radio frequency system according to an embodiment of the present invention is shown.

[0021] The radio frequency system 10 includes a transmitter (TX), a receiver (RX), a switch 120 and an antenna (ANT). A transmitter TX and a receiver RX may be included in a radio frequency (RF) transceiver 100 . Transmitter TX and receiver RX may be combined in transceiver 100 and share common circuitry and / or a single housing. An antenna ANT transmits a signal from a transmitter TX, o...

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PUM

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Abstract

A circuit comprises a transmitter port; a receiver port; an antenna port configured to transmit a signal from the transmitter port to antenna port and receive a signal at antenna port and pass to the receiver port; and a switch configured to switch whether the transmitter port or the receiver port is communicatively coupled to the antenna port. The switch comprises a plurality of NMOS FETs configured to switch between the transmitter port and the receiver port.

Description

technical field [0001] This application relates to circuits, in particular but not limited to a radio frequency switch suitable for application in integrated circuits. By configuring the working state of the NMOS FET in the radio frequency switch, the antenna port of the radio frequency system is connected to the transmitter port or the receiver port of the radio frequency system. Background technique [0002] Typically, a diode is employed to switch the RF port (antenna) between the transmitter (TX) port and the receiver (RX) port. However, diodes require direct current (DC) to operate, introducing DC power dissipation. Additionally, inductors used with diodes provide the DC operating point for these diodes. The large size of the inductor limits the application of the diode in the switch of the transceiver. Therefore, there is a need for a device that can be designed to reduce DC power consumption and reduce size. Contents of the invention [0003] According to an emb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/687H04B1/44
CPCH04B1/48H03K3/012H03K17/687
Inventor 不公告发明人
Owner BEKEN CORP