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CN-224232906-U - Power divider/synthesizer based on strip transmission line

CN224232906UCN 224232906 UCN224232906 UCN 224232906UCN-224232906-U

Abstract

The utility model discloses a power divider/synthesizer based on a strip transmission line, which solves the technical problems that the radiation of a radio frequency signal is limited and high-power transmission is not utilized in the prior art. The power divider/synthesizer based on the strip transmission line comprises the strip transmission line, the strip transmission line comprises a first horizontal transmission line and a first power dividing/synthesizing branch circuit, the width of the first horizontal transmission line is equal, the first power dividing/synthesizing branch circuit comprises a first vertical transmission line, a second horizontal transmission line and a third horizontal transmission line, the first horizontal transmission line is connected with the middle part of the first vertical transmission line, the second horizontal transmission line and the third horizontal transmission line are respectively connected with two ends of the first vertical transmission line, the impedance value of the first horizontal transmission line, the impedance value of the second horizontal transmission line and the impedance value of the third horizontal transmission line are equal, the power divider/synthesizer further comprises a vertical branch transmission line, one end of the vertical branch transmission line is connected with the middle part of the first horizontal transmission line, and the other end of the vertical branch transmission line is open-circuited or short-circuited.

Inventors

  • XIA YUNQIANG
  • JIANG SHAOBO

Assignees

  • 成都信息工程大学

Dates

Publication Date
20260512
Application Date
20250422

Claims (7)

  1. 1. The power divider/synthesizer based on the strip transmission line comprises the strip transmission line and is characterized in that the strip transmission line comprises a first horizontal transmission line (110) and a first power dividing/synthesizing branch circuit, wherein the width of the first horizontal transmission line is equal to that of the first horizontal transmission line, and the first power dividing/synthesizing branch circuit comprises a first vertical transmission line (210), a second horizontal transmission line (120) and a third horizontal transmission line (130); The second horizontal transmission line (120) and the third horizontal transmission line (130) are respectively connected with two ends of the first vertical transmission line (210); The impedance value of the first horizontal transmission line (110), the impedance value of the second horizontal transmission line (120) and the impedance value of the third horizontal transmission line (130) are equal; And the vertical branch transmission line (300) is further included, one end of the vertical branch transmission line (300) is connected with the middle part of the first horizontal transmission line (110), and the other end is open-circuited or short-circuited.
  2. 2. A strip line based power divider/combiner as recited in claim 1, wherein said vertical branch line (300) is at least two.
  3. 3. A strip transmission line based power divider/combiner as set forth in claim 1, wherein the vertical branch transmission line (300) has a width less than the width of the first horizontal transmission line (110).
  4. 4. The strip line based power divider/combiner of claim 1, further comprising a second power dividing/combining branch of equal width to the first horizontal transmission line (110), the second power dividing/combining branch comprising horizontal and vertical transmission lines.
  5. 5. The strip line based power divider/combiner of claim 4, wherein the second power dividing/combining branch comprises a fourth horizontal transmission line (140), a second vertical transmission line (220), a fifth horizontal transmission line (150), a third vertical transmission line (230), and a sixth horizontal transmission line (160) connected in sequence with a middle portion of the first vertical transmission line (210).
  6. 6. The strip line based power divider/combiner of claim 5, wherein the projected lengths of the second power divider/combiner branch, the second horizontal transmission line (120), and the third horizontal transmission line (130) are equal.
  7. 7. The strip line based power divider/combiner of claim 1, wherein the strip line comprises two ground plates (410) that are vertically symmetrical, a center conduction band (420), and an air medium (430) filled in the middle.

Description

Power divider/synthesizer based on strip transmission line Technical Field The utility model relates to the technical field of power dividers/synthesizers, in particular to a power divider/synthesizer based on a strip transmission line. Background The T-shaped power divider/combiner is a common radio frequency device and is mainly used in power synthesis and antenna array networks. As shown in fig. 1, the conventional T-shaped power divider/combiner connects three wider strip line ports through two narrower strip line arms, and is implemented with quarter wave impedance, so that the radiation of radio frequency signals is limited, and high-power transmission is not utilized. Disclosure of utility model The utility model mainly aims to provide a power divider/synthesizer based on a strip transmission line so as to solve the technical problems that the radiation of a radio frequency signal is limited and high-power transmission is not utilized in the prior art. In order to achieve the above purpose, the present utility model provides a power divider/synthesizer based on a strip transmission line, and the technical scheme is as follows: The power divider/synthesizer based on the strip transmission line comprises the strip transmission line, wherein the strip transmission line comprises a first horizontal transmission line and a first power dividing/synthesizing branch circuit which are equal in width, the first power dividing/synthesizing branch circuit comprises a first vertical transmission line, a second horizontal transmission line and a third horizontal transmission line, the first horizontal transmission line is connected with the middle part of the first vertical transmission line, the second horizontal transmission line and the third horizontal transmission line are respectively connected with two ends of the first vertical transmission line, the impedance value of the first horizontal transmission line, the impedance value of the second horizontal transmission line and the impedance value of the third horizontal transmission line are equal, the power divider/synthesizer further comprises a vertical branch transmission line, one end of the vertical branch transmission line is connected with the middle part of the first horizontal transmission line, and the other end of the vertical branch transmission line is open-circuited or short-circuited. As a further improvement of the strip-shaped transmission line-based power divider/synthesizer, the number of the vertical branch transmission lines is at least two. As a further improvement of the strip line based power divider/combiner described above, the width of the vertical stub transmission line is smaller than the width of the first horizontal transmission line. As a further improvement of the strip line based power divider/combiner described above, a second power dividing/combining branch equal to the width of the first horizontal transmission line is included, the second power dividing/combining branch including horizontal and vertical transmission lines. As a further improvement of the strip-shaped transmission line-based power divider/combiner, the second power dividing/combining branch comprises a fourth horizontal transmission line, a second vertical transmission line, a fifth horizontal transmission line, a third vertical transmission line and a sixth horizontal transmission line which are sequentially connected with the middle part of the first vertical transmission line. As a further improvement of the above-described strip line based power divider/combiner, the projected lengths of the second power dividing/combining branch, the second horizontal transmission line and the third horizontal transmission line are equal. The power divider/synthesizer based on the strip transmission line does not adopt the traditional impedance matching mode, but adopts the short-branch vertical branch transmission line impedance matching on the main circuit, so that the circuit is more flexible, the broadband matching can be realized, and on the basis of ensuring the performance of the device, the vertical branch transmission line can transmit the heat of signals to the ground, thereby reducing the temperature of the device and realizing high-power transmission. In addition, the widths of the first horizontal transmission line, the first power division/synthesis branch and the second power division/synthesis branch are equal, so that the processing and the manufacturing are facilitated. The utility model is further described below with reference to the drawings and detailed description. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model. Drawings The accompanying drawings, which form a part hereof, are shown by way of illustration and not of limitation, and in which are shown by way of illustration and