CN112332058B - Power divider with broadband or dual-band characteristic - Google Patents
Power divider with broadband or dual-band characteristic Download PDFInfo
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- CN112332058B CN112332058B CN202011443015.7A CN202011443015A CN112332058B CN 112332058 B CN112332058 B CN 112332058B CN 202011443015 A CN202011443015 A CN 202011443015A CN 112332058 B CN112332058 B CN 112332058B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
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Abstract
The invention relates to a power divider with broadband or dual-band characteristics, and belongs to the technical field of radio frequency wireless communication. The device comprises an input port, at least two output ports, an input feeder line, a slot line transmission main line and an output feeder line, wherein the input feeder line, the slot line transmission main line and the output feeder line are sequentially connected with the input port and the output ports. The spurline loading branches are loaded inside the main transmission line of the slot line, and the spurline loading branches are loaded outside the main transmission line of the slot line: when the spur line loading branch is loaded in the slot line transmission main line, the structure is a metal conductor structure, and the power divider has the bandwidth characteristic; when the bur line loading branch is loaded outside the slot line transmission main line, the air slot structure is adopted, and the power divider has a double-band characteristic. The circuit has the advantages of low loss, flexible characteristic change and simple circuit structure. The power divider with different characteristics can be realized by changing the loading position of the bur line loading branch, the loading mode is simple, and the millimeter wave power divider can be used for designing millimeter wave power dividers and power amplifiers.
Description
Technical Field
The invention relates to a power divider with broadband or dual-band characteristics, and belongs to the technical field of radio frequency wireless communication.
Background
The Power divider is a device which divides one path of input signal energy into two paths or multiple paths to output equal or unequal energy, or conversely, combines multiple paths of signal energy into one path to output, and is also called a combiner at this time. Certain isolation degree should be guaranteed between output ports of one power divider. The power divider is generally divided into two-in-one (one input and two outputs), three-in-one (one input and three outputs), and the like according to the output. The main technical parameters of the power divider include power loss (including insertion loss, distribution loss and reflection loss), voltage standing wave ratio of each port, isolation, amplitude balance, phase balance, power capacity, bandwidth and the like among the power distribution ports.
The power divider is widely applied to phased array radars and multi-path wireless communication systems. The existing commonly used power divider has a microstrip line type structure, the research on the power divider in a slot line type is less, but the loss of the slot line in a millimeter wave frequency band is much less than that of the microstrip line, the loss can be greatly reduced by using the slot line to design a device, and the power divider has important research value.
Disclosure of Invention
In view of the above, the present invention provides a power divider with broadband or dual-band characteristics.
The technical scheme of the invention is represented as a power divider with broadband or dual-band characteristics, and is characterized in that the circuit comprises an input feeder line, an output feeder line, a slot line transmission main line and a spur line loading branch.
The input feeder line is used for feeding signals into the power divider and consists of a rectangular air slot, metal and a rectangular air slot;
the output feeder is used for feeding out signals inside the power divider and consists of a rectangular air slot, a metal-rectangular air slot and a fan-shaped air slot.
One side of the slot line transmission main line is connected with the rectangular air slot of the input feeder line, and the other side of the slot line transmission main line is connected with the rectangular air slot of the output feeder line.
The bur line loading branches are of two types, one type is loaded inside the main line of the slot line transmission, and the other type is loaded outside the main line of the slot line transmission:
when the spur line loading branch is loaded in the slot line transmission main line, the structure is a metal conductor structure, and the power divider has the bandwidth characteristic;
when the bur line loading branch is loaded outside the slot line transmission main line, the air slot structure is adopted, and the power divider has a double-band characteristic.
In summary, a power divider with broadband or dual-band characteristics includes an input port, at least two output ports, and an input feeder line, a slot line transmission main line, and an output feeder line sequentially connecting the input port and the at least two output ports, and is characterized in that a spur line loading branch is arranged on the slot line transmission main line.
The bur line loading branch has two structural forms, one is loaded inside the main line of the slot line transmission, and the other is loaded outside the main line of the slot line transmission:
when the spur line loading branch is loaded in the slot line transmission main line, the structure is a metal conductor structure, and the power divider has the bandwidth characteristic;
when the bur line loading branch is loaded outside the slot line transmission main line, the air slot structure is adopted, and the power divider has a double-band characteristic.
The input feeder line is used for feeding signals into the power divider and consists of a rectangular air slot, metal and a rectangular air slot;
the output feeder is used for feeding out signals inside the power divider and consists of a rectangular air slot, a metal-rectangular air slot and a fan-shaped air slot.
One side of the slot line transmission main line is connected with the rectangular air slot of the input feeder line, and the other side of the slot line transmission main line is connected with the rectangular air slot of the output feeder line.
The power divider with the broadband or dual-band characteristic has the advantages of low loss, flexible characteristic change and simple circuit structure. The power divider with different characteristics can be realized by changing the loading position of the bur line loading branch, the loading mode is simple, and the millimeter wave power divider can be used for designing millimeter wave power dividers and power amplifiers.
Drawings
Fig. 1 is a schematic structural diagram of a wide-band or dual-band power divider according to the present invention, in which a spur line loading branch is loaded outside a main transmission line of a slot line;
fig. 2 is a schematic structural diagram of a wide-band or dual-band power divider according to the present invention, when a spur line loading branch is loaded inside a slot line transmission main line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
A power divider with broadband or dual-band characteristics is characterized in that the circuit comprises an input feeder 10, an output feeder 2, a slot line transmission main line 3 and a spur line loading branch 4.
The input feeder line 10 is used for feeding signals into the power divider and consists of a rectangular air slot 101, a metal and a rectangular air slot 102; the first output feeder 21 is used for feeding out internal signals of the power divider and is composed of a rectangular air slot 211, a metal-rectangular air slot 212, and the second output feeder 22 is used for feeding out internal signals of the power divider and is composed of a rectangular air slot 221, a metal-rectangular air slot 222;
the first slot line transmission main line 31 is connected with the rectangular air slot 101 of the input feeder line 10 at one side and the rectangular air slot 212 of the output feeder line 21 at the other side, the second slot line transmission main line 32 is connected with the rectangular air slot 102 of the input feeder line 10 at one side and the rectangular air slot 221 of the output feeder line 22 at the other side, signals enter from the input feeder line 10, one path is transmitted to the output feeder line 21 through the slot line transmission main line 31, and the other path is transmitted to the output feeder line 22 through the slot line transmission main line 32 to realize power division.
The rectangular air slots 211 and 222 of the output feeder not connected to the slot line transmission main lines 31 and 32 are connected to the fan- shaped air slots 51 and 52, respectively, and energy leakage at the output feeder end can be prevented.
The bur wire loading branches 4 are of two types, one type is loaded in the inner part 42 of the main wire transmission line 3, the other type is loaded in the outer part 41 (411, 412) of the main wire transmission line 3, when the bur wire loading branches 4 are loaded in the main wire transmission line 3, the branches 42 (421, 422) are of metal conductor structures and are formed by metal electroplating processing, and the power divider has the bandwidth characteristic; when the bur line loading branch 4 is loaded outside the main slot line transmission line 3, 41 is in an air slot structure and is processed by etching metal, and the power divider has a dual-band characteristic.
The above embodiments are provided to further explain the objects, technical solutions and embodiments of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A power divider with broadband or dual-band characteristics comprises an input port, at least two output ports, an input feeder line, a slot line transmission main line and an output feeder line, wherein the input feeder line, the slot line transmission main line and the output feeder line are sequentially connected with the input port and the at least two output ports, and the power divider is characterized in that a spur line loading branch is arranged on the slot line transmission main line, the spur line loading branch is loaded inside the slot line transmission main line, and is loaded outside the slot line transmission main line, the spur line loading branch is loaded inside the slot line transmission main line and is of a metal conductor structure, the power divider is of a bandwidth characteristic, or the spur line loading branch is loaded outside the slot line transmission main line and is of an air slot structure, the power divider is of a dual-band characteristic, the input feeder line is used for feeding signals into the power divider and is composed of a rectangular air slot, a metal and a rectangular air slot, and the output feeder line is used for feeding out signals inside the power divider, the air tank consists of a rectangular air tank, a metal-rectangular air tank and a fan-shaped air tank.
2. The power divider with broadband or dual-band characteristics according to claim 1, wherein one side of the slot line transmission main line is connected to the rectangular air slot of the input feeder, and the other side is connected to the rectangular air slot of the output feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011443015.7A CN112332058B (en) | 2020-12-11 | 2020-12-11 | Power divider with broadband or dual-band characteristic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011443015.7A CN112332058B (en) | 2020-12-11 | 2020-12-11 | Power divider with broadband or dual-band characteristic |
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| CN112332058A CN112332058A (en) | 2021-02-05 |
| CN112332058B true CN112332058B (en) | 2021-10-08 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702463A (en) * | 2009-10-31 | 2010-05-05 | 华南理工大学 | Dielectric-loaded quadrifilar helix antenna of power-division phase-shift feed network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102010018000A1 (en) * | 2009-05-11 | 2010-11-18 | Magna Powertrain Ag & Co Kg | torque setting |
| US8350644B2 (en) * | 2009-12-15 | 2013-01-08 | Microelectronics Technology, Inc. | Band pass filter combiner |
| CN201699114U (en) * | 2010-06-23 | 2011-01-05 | 中国科学院微电子研究所 | Microwave double-frequency power divider based on Gysel-type power divider |
| CN106410356B (en) * | 2016-11-30 | 2020-08-18 | 中国科学院微电子研究所 | Miniature broadband power divider circuit based on spurt line |
| CN106848511A (en) * | 2017-03-24 | 2017-06-13 | 电子科技大学 | A kind of double frequency filtering power splitter for being applied to WLAN |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702463A (en) * | 2009-10-31 | 2010-05-05 | 华南理工大学 | Dielectric-loaded quadrifilar helix antenna of power-division phase-shift feed network |
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