Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof

A technology of couplers and receivers, applied in the field of couplers, can solve problems such as insufficient reduced area, and achieve the effect of small size

Inactive Publication Date: 2013-05-22
SPRING FOUND OF NCTU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cheng and Hsu et al. respectively proposed dual-frequency hybrid couplers designed with uniform transmission line and stepped-impedance transmission line. However, the fly in the ointment is that these dual-frequency hybrid couplers reduce the The area is still a little insufficient, and there is room for improvement

Method used

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  • Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof
  • Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof

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Embodiment Construction

[0021] The following will introduce the dual-frequency hybrid coupler unit provided by the embodiment of the present invention and the dual-frequency hybrid coupler formed by using these dual-frequency hybrid coupler units with drawings and descriptions, but the following examples are only one Exemplary embodiments are not intended to limit the present invention.

[0022] Such as figure 1 as shown, figure 1 It is a schematic structural diagram of the dual-frequency hybrid coupler unit 100 provided by the embodiment of the present invention. Dual frequency hybrid coupler unit 100 includes parallel coupled lines 105 , 110 , short transmission line segment 125 , and transmission lines 115 and 120 . One end of the short transmission line segment 125 , or short-circuit line 125 is connected to one end of the coupled line 105 , and the other end is connected to one end of the coupled line 110 . One end of the transmission line 115 is connected to the other end of the coupling lin...

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Abstract

The invention discloses a double-frequency blended coupler unit as well as a double-frequency blended coupler and a receiver thereof. The double-frequency blended coupler unit comprises parallel coupling lines, a short transmission line section, a first transmission line and a second transmission line, wherein the first coupling line and the second coupling line are substantially parallel and have identical lengths substantially; both ends of the short transmission line section are connected to both ends of the coupling lines; and one end of the first transmission line is connected with the other end of the first coupling line, and one end of the second transmission line is connected with the other end of the second coupling line.

Description

technical field [0001] The invention relates to a coupler, in particular to a dual-frequency hybrid coupler unit, its dual-frequency hybrid coupler and its receiver. Background technique [0002] With the development of communication technology, many computers and handheld devices use wireless communication technology to connect to the Internet. The receivers used for wireless communication generally need a coupler to couple the signal received by the antenna. , and send it to the communication chip in the receiver through the transmission line. In addition, electronic products tend to be light, thin, short, small, and power-saving. Therefore, the smaller the coupler, the more in line with the trend of electronic products, and it may even reduce the manufacturing cost. [0003] Please refer to U.S. Patent No. 5,382,925. In this patent, Hayashi et al. propose a single-frequency hybrid coupler with a multi-layer structure. Although this single-frequency hybrid coupler reduces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/18H01P5/12
Inventor 郭仁财邱逸群詹麒宏
Owner SPRING FOUND OF NCTU
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