CN104638328A - Trisecting power distributor - Google Patents
Trisecting power distributor Download PDFInfo
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- CN104638328A CN104638328A CN201310571333.5A CN201310571333A CN104638328A CN 104638328 A CN104638328 A CN 104638328A CN 201310571333 A CN201310571333 A CN 201310571333A CN 104638328 A CN104638328 A CN 104638328A
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- transmission line
- iii
- resistance
- output
- lambada
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Abstract
The invention belongs to the technical field of radio frequency power distribution/synthesis and particularly relates to a trisecting power distributor convenient to connect and easy to implement. The trisecting power distributor comprises an input end transmission line, a Lambada/4 transmission line I, a Lambada/4 transmission line II, a Lambada/4 transmission line III, a resistor I, a resistor II, a resistor III, an output end transmission line I, an output end transmission line II and an output end transmission line III. The trisecting power distributor is structurally characterized in that one end of the input end transmission line is provided with an input port, the other end of the input end transmission line is connected with one end of the Lambada/4 transmission line I, one end of the Lambada/4 transmission line II and one end of the Lambada/4 transmission line III; the other end of the Lambada/4 transmission line I is connected with one end of the resistor I, one end of the resistor III and one end of the output end transmission line I; the other end of the Lambada/4 transmission line is connected with the other end of the resistor I, one end of the resistor II and one end of the output end transmission line II.
Description
Technical field
The invention belongs to radio-frequency power distribution/synthesis technical field, particularly relate to a kind of trisection power divider.
Background technology
Along with the develop rapidly of wireless communication technology, require progressively to improve to the linear properties of wireless transceiver.(be generally used in signal input part is power divider to power divider/synthesizer, being used in signal output part is power combiner, hereinafter all be called power divider) play an important role in the application of power amplifier and association area thereof, when fixed cell restrictions such as being subject to chip cannot realize system power requirement, power divider can play the effect making power double.A kind of form that RF power divider is conventional is Wilkinson power divider, but its trisection power divider exists the problem not easily realized in connection.
Summary of the invention
The present invention is exactly for the problems referred to above, provides the trisection power divider that a kind of connected mode comparatively for convenience, easily realizes.
For achieving the above object, the present invention adopts following technical scheme, the present invention includes input transmission line, λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III, resistance I, resistance II, resistance III, output transmission line I, output transmission line II and output transmission line III, its structural feature input transmission line one end is input port, and the input transmission line other end is connected with λ/4 transmission line I one end, λ/4 transmission line II one end, λ/4 transmission line III one end respectively; λ/4 transmission line I other end is connected with resistance I one end, resistance III one end, output transmission line I one end respectively, λ/4 transmission line II other end is connected with resistance I other end, resistance II one end, output transmission line II one end respectively, and λ/4 transmission line III other end is connected with resistance II other end, resistance III other end, output transmission line III one end respectively; Output transmission line I other end, output transmission line II other end, output transmission line III other end are output port; Described λ is fundamental wavelength.
As a kind of preferred version, input transmission line of the present invention, output transmission line I, output transmission line II, output transmission line III are the microstrip transmission line that impedance is 50 ohm.
As another kind of preferred version, λ/4 of the present invention transmission line I, λ/4 transmission line II, λ/4 transmission line III are the microstrip transmission line that impedance is 70.7 ohm.
In addition, resistance I of the present invention, resistance II, resistance III are 100 ohm.
Beneficial effect of the present invention.
The present invention can realize the function of trisection preferably, connected mode comparatively for convenience of, easily realize, and save chip area.Test result shows: trisection effect of the present invention is better.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.Scope is not only confined to the statement of following content.
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is input of the present invention (port one) reflection coefficient resolution chart.
Fig. 3 is output of the present invention (port 2) reflection coefficient resolution chart.
Fig. 4 is output of the present invention (port 3) reflection coefficient resolution chart.
Fig. 5 is output of the present invention (port 2) insertion loss to input.
Fig. 6 is output of the present invention (port 3) insertion loss to input.
In Fig. 1,101 is input transmission line; 102 is λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III; 103 is output transmission line I, output transmission line II and output transmission line III; 104 is resistance I, resistance II, resistance III.
Embodiment
As shown in Figure 1, the present invention includes input transmission line, λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III, resistance I, resistance II, resistance III, output transmission line I, output transmission line II and output transmission line III, input transmission line one end is input port, and the input transmission line other end is connected with λ/4 transmission line I one end, λ/4 transmission line II one end, λ/4 transmission line III one end respectively; λ/4 transmission line I other end is connected with resistance I one end, resistance III one end, output transmission line I one end respectively, λ/4 transmission line II other end is connected with resistance I other end, resistance II one end, output transmission line II one end respectively, and λ/4 transmission line III other end is connected with resistance II other end, resistance III other end, output transmission line III one end respectively; Output transmission line I other end, output transmission line II other end, output transmission line III other end are output port; Described λ is fundamental wavelength.
Described input transmission line, output transmission line I, output transmission line II, output transmission line III are the microstrip transmission line that impedance is 50 ohm.
Described λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III are the microstrip transmission line that impedance is 70.7 ohm.
Described resistance I, resistance II, resistance III are 100 ohm.
In the present invention, circuit can realize with PCB substrate or monolithic integrated circuit.For PCB substrate, for reducing substrate loss, can select high frequency sheet material, to adopt Rogers4350B type pcb board, option board thickness is 0.508mm, and corresponding 50 ohm microstrip line widths are about 1.07mm, according to the formula of effective dielectric constant
with the relation of velocity of wave and wavelength
can fundamental wavelength λ be obtained, thus the length of λ/4 transmission line can be determined.
For working frequency points 2.4GHz, as can be seen from Fig. 2,3 and Fig. 4, the reflection coefficient of the embodiment of the present invention, all below-10dB, belongs to tolerance interval.As can be seen from Fig. 5 and Fig. 6, the loss of the embodiment of the present invention is respectively-5.1dB and-4.9dB, comparatively close with desirable trisection loss-4.7dB.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (4)
1.
a kind of trisection power divider, comprise input transmission line, λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III, resistance I, resistance II, resistance III, output transmission line I, output transmission line II and output transmission line III, it is characterized in that input transmission line one end is input port, the input transmission line other end is connected with λ/4 transmission line I one end, λ/4 transmission line II one end, λ/4 transmission line III one end respectively; λ/4 transmission line I other end is connected with resistance I one end, resistance III one end, output transmission line I one end respectively, λ/4 transmission line II other end is connected with resistance I other end, resistance II one end, output transmission line II one end respectively, and λ/4 transmission line III other end is connected with resistance II other end, resistance III other end, output transmission line III one end respectively; Output transmission line I other end, output transmission line II other end, output transmission line III other end are output port; Described λ is fundamental wavelength.
2.
according to claim 1, a trisection power divider, is characterized in that described input transmission line, output transmission line I, output transmission line II, output transmission line III are the microstrip transmission line that impedance is 50 ohm.
3.
according to claim 1, a trisection power divider, is characterized in that described λ/4 transmission line I, λ/4 transmission line II, λ/4 transmission line III are the microstrip transmission line that impedance is 70.7 ohm.
4.
according to claim 1, a trisection power divider, is characterized in that described resistance I, resistance II, resistance III are 100 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571333.5A CN104638328A (en) | 2013-11-13 | 2013-11-13 | Trisecting power distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571333.5A CN104638328A (en) | 2013-11-13 | 2013-11-13 | Trisecting power distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104638328A true CN104638328A (en) | 2015-05-20 |
Family
ID=53216815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310571333.5A Pending CN104638328A (en) | 2013-11-13 | 2013-11-13 | Trisecting power distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104638328A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751579A (en) * | 2021-01-15 | 2021-05-04 | 南京正銮电子科技有限公司 | Solid-state transmitter |
| CN112864561A (en) * | 2020-12-28 | 2021-05-28 | 西安电子科技大学 | Topological structure of n-path single-chip lumped power divider and design method thereof |
-
2013
- 2013-11-13 CN CN201310571333.5A patent/CN104638328A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864561A (en) * | 2020-12-28 | 2021-05-28 | 西安电子科技大学 | Topological structure of n-path single-chip lumped power divider and design method thereof |
| CN112751579A (en) * | 2021-01-15 | 2021-05-04 | 南京正銮电子科技有限公司 | Solid-state transmitter |
| CN112751579B (en) * | 2021-01-15 | 2022-03-15 | 南京正銮电子科技有限公司 | Solid-state transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |