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Oriented coupler of coupler wire and production thereof

A technology of directional coupler and coupled line, which is applied in the field of communication, can solve problems such as failure to meet conventional requirements, and achieve the effects of enhancing directivity, increasing power capacity, and shortening length

Inactive Publication Date: 2006-03-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

and figure 1 Compared with the first coupler in the prior art, the directivity index of the second coupler in the prior art will be slightly better, but it still cannot meet the conventional requirements

Method used

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  • Oriented coupler of coupler wire and production thereof
  • Oriented coupler of coupler wire and production thereof
  • Oriented coupler of coupler wire and production thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0044] figure 2 A schematic diagram of a coupled line directional coupler 20 according to a first embodiment of the present invention is shown.

[0045] The coupled line directional coupler 20 according to the first embodiment of the present invention includes a main signal line 202 and a coupled signal line 204 coupled to each other. The main signal line 202 has a first port 210 for receiving the main signal and a first port 210 for outputting the main signal. The third port 212 of the coupled signal line has a second port 214 for outputting the first coupled signal and a fourth port 216 for outputting the second coupled signal. Two main signal lines 202 and the coupled signal line 204 are formed. Two coupling regions: a first coupling region 206 and a second coupling region 208 . The length L of the main signal line 202 is far less than 25% of the guide wavelength, thus greatly reducing the transmission loss of the main signal line. Since the main signal line transmits a h...

no. 2 example

[0048] image 3 A schematic diagram of a coupler 30 according to a second embodiment of the invention is shown. According to the coupler 30 of the second embodiment of the present invention and figure 2 The difference of the illustrated coupler 20 according to the first embodiment of the present invention is that the main signal line 302 and the coupled line 304 are not on the same plane. like image 3 As shown, the coupled signal line 304 is drawn with a dashed line, indicating that the coupled signal line 304 is not coplanar with the main signal line 302 . The projection areas of the two are partially overlapped, and of course may not overlap. The main signal line 302 and the coupling signal line 304 are coupled together, and two coupling regions are formed between them: a first coupling region 306 and a second coupling region 308 . The length L of the main signal line 302 is far less than 25% of the guide wavelength, thus greatly reducing the transmission loss of the m...

no. 3 example

[0050] Figure 4 A schematic diagram of a coupler 40 according to a third embodiment of the invention is shown. The coupler 40 also includes a main signal line 402 and a coupled signal line 404 coupled to each other, and figure 2 The difference of the shown coupler according to the first embodiment of the present invention is that the first coupling region 406 and the second coupling region 408 are connected by several elements or groups of elements 410, for example, resistors may be used to connect these The two coupling regions can also be directly connected by a transmission line, and those skilled in the art should understand that other connection elements can also be used. Other aspects of the coupler according to the third embodiment of the present invention are the same as those according to the first embodiment of the present invention.

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PUM

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Abstract

The invention comprises main signal line and coupling signal line. At least two coupling areas are formed between coupling signal line and main signal line. The manufacturing method includes: a) mount main signal line; b) mount coupling signal line, and make coupling signal line coupled with main signal line; c) form two coupling areas between coupling signal line and main signal line.

Description

technical field [0001] The invention relates to the communication field, in particular to a coupled line directional coupler used in the communication field and a manufacturing method thereof. Background technique [0002] With the rapid development of mobile communication technology today, couplers are widely used in radio frequency and microwave systems for signal power distribution and synthesis, power sampling and detection, balanced amplifiers, phase shifters, filters, etc. A typical coupler is essentially a four-port network that splits an input signal into two output signals whose power is proportional to a specific frequency within a specific frequency range. Similarly, when used in reverse, it has the effect of power combining. There are many types of couplers, each with its own characteristics, including the coupled line directional coupler implemented on the PCB (printed circuit board). This coupled line directional coupler usually includes two structures: the sid...

Claims

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Application Information

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IPC IPC(8): H01P5/18H01P11/00
Inventor 何平华
Owner HUAWEI TECH CO LTD
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