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A two-transmit and two-receive full-duplex communication radio frequency front-end circuit

A radio frequency front-end, full-duplex technology, applied in the field of communication, can solve problems such as degradation, waste of spectrum resources, throughput, etc., and achieve the effect of increasing isolation

Active Publication Date: 2020-10-30
TP-LINK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current duplex communication system, it mainly includes frequency division duplex communication and time division duplex communication. The duplex communication of transmission and reception is realized by frequency band division and time slot division respectively. However, these two communication technologies will inevitably Causes waste of spectrum resources or decline in throughput, therefore, research on full-duplex communication technology in the same frequency band has been attracting attention

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  • A two-transmit and two-receive full-duplex communication radio frequency front-end circuit
  • A two-transmit and two-receive full-duplex communication radio frequency front-end circuit
  • A two-transmit and two-receive full-duplex communication radio frequency front-end circuit

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] An embodiment of the present invention provides a two-transmission and two-reception full-duplex communication radio frequency front-end circuit, see figure 1 As shown, it is a structural block diagram of a preferred embodiment of a two-transmit and two-receive full-duplex communication radio frequency front-end circuit provided by the present invention, and the circuit includes a first coupler 101, a second coupler 102, a third coupler 103, the fourth coupl...

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Abstract

The invention discloses a two-transmitting and two-receiving full duplex communication radio frequency front end circuit, which comprises a first coupler, a second coupler, a third coupler, a fourth coupler, a first adjustable attenuator, a second adjustable attenuator, a first adjustable phase shifter, a second adjustable phase shifter, a first circulator and a second circulator. By adopting thetechnical scheme of the invention, the isolation degree between the transmitting link and the receiving link can be increased through the design of the radio frequency front-end circuit.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a two-transmission and two-reception full-duplex communication radio frequency front-end circuit. Background technique [0002] In the current duplex communication system, it mainly includes frequency division duplex communication and time division duplex communication. The duplex communication of transmission and reception is realized by frequency band division and time slot division respectively. However, these two communication technologies will inevitably Therefore, the research on the full-duplex communication technology with the same frequency band at the same time has always been concerned. [0003] For the realization of full-duplex communication in the same frequency band at the same time, the most important problem is how to ensure sufficient isolation between the transmitting chain and the receiving chain. Contents of the invention [0004] The technical prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/56H04B1/525
Inventor 李祖伟
Owner TP-LINK