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A dual-mode radio frequency transceiver switch

A radio frequency transceiver, dual-mode technology, applied in the field of dual-mode radio frequency transceiver switches, can solve the problems of increased parasitic capacitance, only one working mode of radio frequency transceiver switches, and large voltage swing changes.

Active Publication Date: 2022-03-25
拓维电子科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional RF transceiver switch has only one working mode
[0003] In addition, the traditional transceiver switch usually adopts the method of increasing the width of the transistor to reduce the insertion loss. However, when the width of the transistor increases, the parasitic capacitance increases, resulting in poor isolation between the transmitting end and the receiving end
When the input signal power is large, the voltage swing applied to each component changes greatly, resulting in poor linearity of the components

Method used

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  • A dual-mode radio frequency transceiver switch

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0020] In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article ...

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Abstract

Embodiments of the present disclosure provide a dual-mode radio frequency transceiving switch. The dual-mode radio frequency transceiver switch includes a first radio frequency port TX_OUT, a second radio frequency port TX_IN, a third radio frequency port RITO, a fourth radio frequency port RX_IN, a fifth radio frequency port RX_OUT, a first transmission line TL1, a second transmission line TL2, a first The NMOS transistor M1, the second NMOS transistor M2, the third NMOS transistor M3, the fourth NMOS transistor M4, and the fifth NMOS transistor M5. The dual-mode radio frequency transceiver switch can work in multiple modes, has low loss, low cost, high isolation and high linearity.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the technical field of radio frequency integrated circuits, and more specifically, relate to a dual-mode radio frequency transceiver switch. Background technique [0002] The radio frequency transceiver switch is an important component in the wireless communication system, and realizes the conversion between the receiving mode and the transmitting mode by selecting different links. Traditional RF transceiver switches have only one working mode. [0003] In addition, traditional transceiver switches usually increase the transistor width to reduce insertion loss. However, when the transistor width increases, the parasitic capacitance increases, resulting in poor isolation between the transmitter and receiver. When the input signal power is large, the voltage swing applied to each component varies greatly, resulting in poor linearity of the components. [0004] With the development of wireless co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/44
CPCH04B1/44
Inventor 刘志哲陈林辉邓惠中杜景超孙迪洪祥
Owner 拓维电子科技(上海)有限公司