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External antenna, impedance matching network parameter debugging method of external antenna and antenna

A technology of impedance matching network and external antenna, applied in the direction of antenna, electrical components, etc., can solve the problem of low signal power transmitted by external antenna

Active Publication Date: 2015-04-22
SHENZHEN GONGJIN ELECTRONICS CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide a debugging method for the parameters of the external antenna and its impedance matching network in view of the technical problems in the prior art that the transmitted signal power of the external antenna is low, and sometimes even secondary development of related devices is required. ,antenna

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  • External antenna, impedance matching network parameter debugging method of external antenna and antenna
  • External antenna, impedance matching network parameter debugging method of external antenna and antenna
  • External antenna, impedance matching network parameter debugging method of external antenna and antenna

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Embodiment Construction

[0039] The specific implementation of the external antenna and its impedance matching network parameter debugging method and antenna according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] refer to figure 1 , figure 1 Shown is a schematic structural diagram of an external antenna in an embodiment, including: a controller 11, a first capacitor 13, a second capacitor 15, a first inductor 17, and a transmitting antenna 19;

[0041] The controller 11 is connected to the transmitting antenna 19 through the first inductance 17, one end of the first inductance 17 is connected to one end of the first capacitor 13, and the other end of the first capacitor 13 is connected to the other end of the first inductance 17 through the second capacitor 15. One end, the other end of the first capacitor 13 is grounded; wherein, the first capacitor 13, the second capacitor 15, and the first inductor 17 form a π-type impedance mat...

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Abstract

The invention provides an external antenna, an impedance matching network parameter debugging method of the external antenna and an antenna. The external antenna comprises a controller, a first capacitor, a second capacitor, a first inductor and a transmitting antenna, the controller is connected with the transmitting antenna through the first inductor, one end of the first inductor is connected with one end of the first capacitor, the other end of the first capacitor is connected with the other end of the first inductor through the second capacitor, and the other end of the first capacitor is grounded; the controller receives a transmitting signal of a transmitting source and inputs the transmitting signal to a pi type impedance matching network for 50-ohm impedance matching, and the matched transmitting signal is transmitted through the transmitting antenna, so that the transmitting signal is subjected to 50-ohm impedance matching before being transmitted, attenuation of the transmitting signal in the transmitting process of the external antenna is reduced, transmitting power of the transmitting signal is improved through the external antenna, it can be guaranteed that signal transmitting work of the external antenna is smooth, and secondary development caused due to the fact that the signal transmitting work can not be finished is avoided.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an external antenna and a debugging method for its impedance matching network parameters, and the antenna. Background technique [0002] With the rapid development of wireless communication technology, there are more and more related applications of wireless signal transmission in our work and life, among which wireless local area network (WLAN) technology is thriving, and the application market is increasingly broad. Wireless local area network is a technology that uses wireless technology to realize fast access to Ethernet. It is the product of the combination of computer network and wireless communication technology, and it is a supplement and extension to wired networking. It is characterized by low cost, flexibility, mobility, throughput, and reliable communication. Today, multi-mode wireless networks that are compatible with IEEE802.11a, IEEE802.11b, IEEE802...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q23/00
Inventor 文立波
Owner SHENZHEN GONGJIN ELECTRONICS CO LTD
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