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Front-end circuit of wireless communication system and wireless communication system

A technology of wireless communication system and front-end circuit, which is applied in the field of wireless communication system and can solve problems such as hardware cost waste

Active Publication Date: 2018-09-04
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Obviously, the system designer can use the chip of the same dual-mode wireless communication front-end path 100 to meet the configuration requirements of a single antenna or a non-single antenna. However, it is still necessary to set two sets of low-noise amplifiers in the dual-mode wireless communication front-end path 100 at the same time. Caused a waste of hardware costs
In the case of chip size and cost, there is still room for improvement in this architecture

Method used

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  • Front-end circuit of wireless communication system and wireless communication system
  • Front-end circuit of wireless communication system and wireless communication system
  • Front-end circuit of wireless communication system and wireless communication system

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Embodiment Construction

[0025] Certain terms are used in the description and claims to refer to particular elements. Those of ordinary skill in the art should understand that manufacturers may use different terms to refer to the same element. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0026] image 3 It is a schematic diagram of the first conf...

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Abstract

The invention discloses a front end circuit for a wireless communication system, and the front end circuit comprises a first amplifier, a second amplifier, and an antenna switch. The first amplifier is disposed on a receiving path, and is provided with a first input end and an output end, wherein the input end of the first amplifier is coupled to the first bonding pad. The second amplifier is disposed on a transmission path, and is provided with a first input end and a second output end, wherein the output end of the second amplifier is coupled to a second bonding pad different from the first bonding pad. The antenna switch is coupled between the first input end of the first amplifier and the output end of the second amplifier.

Description

technical field [0001] The embodiments disclosed in the present invention relate to a wireless communication system, especially a front-end circuit of a wireless communication system supporting a single / non-single antenna and a related method. Background technique [0002] In a wireless communication system, in practice, the circuit architecture in the chip will be designed in consideration of the system requirements, and one of the key points is the configuration of the antenna. If the target wireless communication system adopts a single-antenna configuration, that is, the transmitting end and the receiving end share a set of antennas, an antenna switch will be configured in the corresponding wireless communication chip as a barrier between the transmission and the low-noise amplifier; and If the target wireless communication system uses a non-single antenna configuration, such as two sets of antennas, that is, the transmitting end and the receiving end each use a set of an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40
Inventor 林忠佑施冠宇苏烜毅
Owner REALTEK SEMICON CORP