Communication interference improvement circuit and wireless communication equipment
A technology for wireless communication equipment and communication interference, which is applied in the field of communication and can solve problems such as the short distance between the antenna and the camera of the wireless communication equipment, the limited internal space of the wireless communication equipment, and interference.
Active Publication Date: 2020-09-04
OPPO CHONGQING INTELLIGENT TECH CO LTD
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[0004] In view of this, the embodiment of the present application provides a communication interference improvement circuit and a wireless communication device to solve the problem of the wireless communication device in the prior art due to the continuous reduction in the size of the wireless communication device and the limited internal space of the wireless communication device. The distance between the antenna and the camera is very close, so that the frequency multiplication point of the main clock signal between the baseband chip and the camera is likely to interfere with the wireless communication signals sent and received by the antenna
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[0034] In order to enable those skilled in the art to better understand the solution of the application, the technical solution in the embodiment of the application will be clearly described below in conjunction with the drawings in the embodiment of the application. Obviously, the described embodiment is the All the way to the embodiment, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0035] The terms "comprising" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or optionally further inc...
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The application is applicable to the technical field of communications, and provides a communication interference improvement circuit that is applied to a wireless communication device and comprises afirst filtering unit, a choke unit, and a second filtering unit. By causing an interference signal in the multiplication point signal of the main clock signal to be led out to the ground by a first filtering unit, and causing the other interference signal in the multiplication point signal of the main clock signal to be led out to the ground by a choke unit and a second filtering unit when the baseband chip outputs a main clock signal to the camera, which can effectively eliminate the interference caused by the multiplier point of the main clock signal between the baseband chip and the camerato the wireless communication signal transmitted and received by the antenna.
Description
technical field [0001] The application belongs to the technical field of communication, and in particular relates to a communication interference improvement circuit and a wireless communication device. Background technique [0002] With the continuous development of communication technology, wireless communication equipment continues to develop in the direction of large screen, thinner and portable, which brings great convenience to people's daily production and life. [0003] At present, due to the continuous reduction in the size of wireless communication devices, the internal space of wireless communication devices is limited, resulting in a very short distance between the antenna of the wireless communication device and the camera, making the frequency multiplication point of the main clock signal between the baseband chip and the camera It is easy to cause interference to the wireless communication signals sent and received by the antenna. Contents of the invention ...
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IPC IPC(8): H04B1/10
CPCH04B1/10
Inventor 吴中臣
Owner OPPO CHONGQING INTELLIGENT TECH CO LTD