CN105070999A - Microwave broadband power divider - Google Patents
Microwave broadband power divider Download PDFInfo
- Publication number
- CN105070999A CN105070999A CN201510430536.1A CN201510430536A CN105070999A CN 105070999 A CN105070999 A CN 105070999A CN 201510430536 A CN201510430536 A CN 201510430536A CN 105070999 A CN105070999 A CN 105070999A
- Authority
- CN
- China
- Prior art keywords
- power divider
- transmission line
- wilkinson power
- transmission
- microwave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Semiconductor Integrated Circuits (AREA)
Abstract
The invention provides a microwave broadband power divider, which comprises multiple stages of Wilkinson power dividers. The multiple stages of Wilkinson power dividers are connected via transmission microstrip lines. Each Wilkinson power divider comprises an isolated resistor and matching capacitors. Two ends of each isolated resistor are connected with the matching capacitors respectively. The isolated resistors, the matching capacitors and the transmission microstrip lines are integrated on a GaN substrate. The transmission microstrip line comprises an input transmission line, a jagged transmission line and an output transmission line connected in sequence, wherein the input transmission line is connected with a former-stage Wilkinson power divider, and the output transmission line is connected with a post-stage Wilkinson power divider. Stages of the Wilkinson power dividers can be reduced, and a high frequency band can be achieved.
Description
Technical field
The present invention relates to microwave device technology field, particularly relate to a kind of microwave broadband power divider.
Background technology
Microwave power divider is a kind of multiport microwave device, by the power decile of a road microwave signal or be not divided into multichannel microwave signal, is widely used in the equipment such as various radio communication, radar, microwave measurement.Wilkinson power divider is more common microwave broadband power divider, adopts microstrip structure can conveniently realize on planar circuit, is applicable to the occasion that bandwidth requirement is not high.
In microwave system, all can require insertion loss little as far as possible, to reduce the energy loss of system, and require that the amplitude of each branch road and phase place are consistent, thus ensure that the colleges and universities of microwave signal distribute and superposition.At present, along with the development of microwave telecommunication devices, the requirement for frequency band is also more and more wider, so the broadband character of microwave power divider also becomes more and more important.But the broadband passing flourish power divider is limited to this index of isolation of the low side of frequency band, solution is exactly by increasing progression, but due to the increase of progression, brings insertion loss again.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of microwave broadband power divider, can reduce the progression of Wilkinson power divider, reaches higher frequency band simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of microwave broadband power divider, comprise multistage Wilkinson power divider, described multistage Wilkinson power divider is connected by transmission microstrip line, described Wilkinson power divider comprises isolation resistance and matching capacitance, described isolation resistance two ends connect described matching capacitance respectively, described isolation resistance, matching capacitance and transmission microstrip line are integrated on gallium nitride substrates, described transmission microstrip line comprises the input transmission line connected successively, zigzag transmission line and output transmission line, described zigzag transmission line teeth sizes from both ends to the middle increases successively, described input transmission line connects previous stage Wilkinson power divider, described output transmission line connects rear stage Wilkinson power divider.
Be different from the situation of prior art, the invention has the beneficial effects as follows: by selecting gallium nitride to be substrate, and at isolation resistance two ends matching connection electric capacity, and adopt zigzag transmission line as the transmission channel between two-stage Wilkinson power divider, thus the progression of Wilkinson power divider can be reduced, reach higher frequency band simultaneously, there is structure simple, size is little, easy to make, is convenient to the advantages such as integrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention microwave broadband power divider.
Fig. 2 is the structural representation of the transmission microstrip line of embodiment of the present invention microwave broadband power divider.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the structural representation of embodiment of the present invention microwave broadband power divider.The microwave broadband power divider of the present embodiment comprises multistage Wilkinson power divider 1, multistage Wilkinson power divider 1 is connected by transmission microstrip line 2, Wilkinson power divider 1 comprises isolation resistance 11 and matching capacitance 12, isolation resistance 11 two ends are matching connection electric capacity 12 respectively, and isolation resistance 11, matching capacitance 12 and transmission microstrip line 3 are integrated on gallium nitride substrates (not shown).Transmission microstrip line 2 comprises the input transmission line 21, zigzag transmission line 22 and the output transmission line 23 that connect successively, and zigzag transmission line 22 teeth sizes from both ends to the middle increases successively, as shown in Figure 2.Input transmission line 21 connects previous stage Wilkinson power divider 1, exports transmission line 23 and connects rear stage Wilkinson power divider 1.
In the present embodiment, by increasing matching capacitance 12 at isolation resistance 11 two ends of Wilkinson power divider 1 at different levels, by selecting best capacitance, just can low frequency signal be selectively suppressed to pass through, thus improve the isolation of low side frequency band (1-2GHz), make us can use the progression of less Wilkinson power divider, just can realize the ultra broadband characteristic of 1-20GHz.Further, zigzag transmission line 22 is alternately formed by connecting by multiple longitudinal microstrip line and multiple horizontal microstrip line, thus can reduce insertion loss further.
By the way, the microwave broadband power divider of the embodiment of the present invention is by selecting gallium nitride to be substrate, and at isolation resistance two ends matching connection electric capacity, and adopt zigzag transmission line as the transmission channel between two-stage Wilkinson power divider, thus the progression of Wilkinson power divider can be reduced, reach higher frequency band simultaneously, there is structure simple, size is little, easy to make, is convenient to the advantages such as integrated.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a microwave broadband power divider, it is characterized in that, comprise multistage Wilkinson power divider, described multistage Wilkinson power divider is connected by transmission microstrip line, described Wilkinson power divider comprises isolation resistance and matching capacitance, described isolation resistance two ends connect described matching capacitance respectively, described isolation resistance, matching capacitance and transmission microstrip line are integrated on gallium nitride substrates, described transmission microstrip line comprises the input transmission line connected successively, zigzag transmission line and output transmission line, described zigzag transmission line teeth sizes from both ends to the middle increases successively, described input transmission line connects previous stage Wilkinson power divider, described output transmission line connects rear stage Wilkinson power divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430536.1A CN105070999A (en) | 2015-07-21 | 2015-07-21 | Microwave broadband power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430536.1A CN105070999A (en) | 2015-07-21 | 2015-07-21 | Microwave broadband power divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105070999A true CN105070999A (en) | 2015-11-18 |
Family
ID=54500316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510430536.1A Pending CN105070999A (en) | 2015-07-21 | 2015-07-21 | Microwave broadband power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105070999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120264A1 (en) * | 2022-12-09 | 2024-06-13 | 京信网络系统股份有限公司 | Power divider and communication device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2278657A1 (en) * | 2008-04-11 | 2011-01-26 | Mitsubishi Electric Corporation | Power divider |
| US20140368294A1 (en) * | 2013-06-18 | 2014-12-18 | Electronics And Telecommunications Research Institute | Power divider |
| CN104282969A (en) * | 2014-10-31 | 2015-01-14 | 中国计量学院 | Band-stop microstrip line filter |
| CN204391236U (en) * | 2015-01-30 | 2015-06-10 | 全金海 | Single-chip integration microwave broadband power divider |
-
2015
- 2015-07-21 CN CN201510430536.1A patent/CN105070999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2278657A1 (en) * | 2008-04-11 | 2011-01-26 | Mitsubishi Electric Corporation | Power divider |
| US20140368294A1 (en) * | 2013-06-18 | 2014-12-18 | Electronics And Telecommunications Research Institute | Power divider |
| CN104282969A (en) * | 2014-10-31 | 2015-01-14 | 中国计量学院 | Band-stop microstrip line filter |
| CN204391236U (en) * | 2015-01-30 | 2015-06-10 | 全金海 | Single-chip integration microwave broadband power divider |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024120264A1 (en) * | 2022-12-09 | 2024-06-13 | 京信网络系统股份有限公司 | Power divider and communication device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106357222A (en) | Doherty power amplifier circuit | |
| CN103280621A (en) | Five-quintiles power divider | |
| CN102324614A (en) | High-power microstrip multiplex power divider | |
| CN105356858B (en) | A kind of balun power amplifier | |
| CN104767019A (en) | Power distribution and combination machine based on ultra wide band coaxial impedance transformer | |
| CN104201444A (en) | Microwave millimeter wave active load multi-orthogonal inverse filter | |
| CN105006622A (en) | Microwave power divider | |
| CN104836008B (en) | A kind of a wide range of restructural power divider of frequency | |
| CN104202006A (en) | Adjustable simple low-pass filtering circuit | |
| CN106027077B (en) | The radio frequency front-end device that integrated carrier wave polymerize and the mobile terminal comprising it | |
| CN105070999A (en) | Microwave broadband power divider | |
| CN105006623A (en) | Microwave power dividing device | |
| CN104051832A (en) | Miniaturized broadband band-pass filter based on spiral resonator | |
| CN103219965A (en) | Linear phase loss-free matching network implementation method | |
| CN105244590A (en) | Ultra wide band power divider | |
| CN103152003A (en) | Ultra-wide band electrically-tunable band-pass filter set and frequency control method thereof | |
| CN205248410U (en) | Ware is divided to high power merit based on coaxial line | |
| CN205945705U (en) | Integrated carrier wave polymeric radio frequency front end device and contain its mobile terminal | |
| CN205028994U (en) | Ware is divided to ultra wide band merit based on T type branch | |
| CN104282969A (en) | Band-stop microstrip line filter | |
| CN104201445A (en) | Microwave millimeter wave active load multi-orthogonal inverse filter | |
| CN104051831A (en) | Miniaturized ultra-wideband filter | |
| CN103701415B (en) | Feed-forward power amplifier | |
| CN204481773U (en) | A kind of low-pass filter circuit | |
| CN105322263B (en) | Microwave one-to-N power divider |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
|
| RJ01 | Rejection of invention patent application after publication |