CN105006623A - Microwave power dividing device - Google Patents
Microwave power dividing device Download PDFInfo
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- CN105006623A CN105006623A CN201510430501.8A CN201510430501A CN105006623A CN 105006623 A CN105006623 A CN 105006623A CN 201510430501 A CN201510430501 A CN 201510430501A CN 105006623 A CN105006623 A CN 105006623A
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- wilkinson power
- power divider
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- strip line
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Abstract
The invention provides a microwave power dividing device. The microwave power dividing device comprises multi-stage Wilkinson power dividers, the multi-stage Wilkinson power dividers are connected via transmission microstrip lines, the Wilkinson power dividers comprise isolation resistors and matching capacitors, two terminals of the isolation resistors are respectively connected with the matching capacitors, the isolation resistors, the matching capacitors, and the transmission microstrip lines are integrated on a gallium nitride substrate, each transmission microstrip line comprises a main strip line and side strip lines, the main strip line is provided with an opening groove, one end of the opening groove extends to one end close to the main strip line, the other end of the opening groove penetrates through the main strip line, the main strip line is divided into a first sideband and a second sideband arranged in an opposite manner, two sides of the main strip line are symmetrically provided with the side strip lines, the side strip line at one side is connected with the former-stage Wilkinson power divider, the side strip line at the other side is connected with the latter-stage Wilkinson power divider, and the side strip lines are respectively used for feeding in and feeding out signals. According to the microwave power dividing device, the stage number of the Wilkinson power dividers can be reduced, and high frequency band is reached.
Description
Technical field
The present invention relates to microwave device technology field, particularly relate to a kind of microwave power distributor.
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 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 of traditional 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 power distributor, 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 power distributor, 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 master tape line and lateral fasciole, described master tape line offers fluting, one end of described fluting extends to one end of contiguous master tape line, the through master tape line of the other end of described fluting, described master tape line is divided into the first sideband and the second sideband that are oppositely arranged, the bilateral symmetry of described master tape line is provided with described lateral fasciole, the described lateral fasciole of side connects previous stage Wilkinson power divider, the described lateral fasciole of opposite side connects rear stage Wilkinson power divider, respectively in order to feed-in with feed out signal.
Be different from the situation of prior art, the invention has the beneficial effects as follows: by isolation resistance two ends matching connection electric capacity, and adopt the slotted transmission microstrip line of tool as the transmission channel between two-stage Wilkinson power divider, thus the progression of Wilkinson power divider can be reduced, reach higher frequency band, have structure simple, size is little simultaneously, easy to make, be convenient to the advantages such as integrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention microwave power distributor.
Fig. 2 is the structural representation of the transmission microstrip line of embodiment of the present invention microwave power distributor.
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 power distributor.The microwave power distributor 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 master tape line 21 and lateral fasciole 22, master tape line 21 offers fluting 210, one end of fluting 210 extends to one end of contiguous master tape line 21, the through master tape line 21 of the other end of fluting 210, master tape line 21 is divided into the first sideband 211 and the second sideband 212 be oppositely arranged, the bilateral symmetry of master tape line 21 is provided with lateral fasciole 22, the lateral fasciole 22 of side connects previous stage Wilkinson power divider 1, the lateral fasciole 22 of opposite side connects rear stage Wilkinson power divider 1, respectively in order to feed-in with feed out signal, as shown in Figure 2.
This master tape line 21 roughly takes the shape of the letter U, and fluting 210 is positioned at its medium position.One end of this fluting 210 extends to one end of contiguous master tape line 21 and does not have one end of through master tape line 21, the other end then through master tape line 21 of fluting 210, and then this master tape line 21 is divided into the first sideband 211 and the second sideband 212 be oppositely arranged.In the present embodiment, the length of the first sideband 211 and the second sideband 212 is relevant to the operating frequency of transmission microstrip line 2.
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.
By the way, the microwave power distributor of the embodiment of the present invention passes through at isolation resistance two ends matching connection electric capacity, and adopt the slotted transmission microstrip line of tool as the transmission channel between two-stage Wilkinson power divider, thus the progression of Wilkinson power divider can be reduced, reach higher frequency band, have structure simple, size is little simultaneously, easy to make, be 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 power distributor, 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 master tape line and lateral fasciole, described master tape line offers fluting, one end of described fluting extends to one end of contiguous master tape line, the through master tape line of the other end of described fluting, described master tape line is divided into the first sideband and the second sideband that are oppositely arranged, the bilateral symmetry of described master tape line is provided with described lateral fasciole, the described lateral fasciole of side connects previous stage Wilkinson power divider, the described lateral fasciole of opposite side connects rear stage Wilkinson power divider, respectively in order to feed-in with feed out signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430501.8A CN105006623A (en) | 2015-07-21 | 2015-07-21 | Microwave power dividing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430501.8A CN105006623A (en) | 2015-07-21 | 2015-07-21 | Microwave power dividing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006623A true CN105006623A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510430501.8A Pending CN105006623A (en) | 2015-07-21 | 2015-07-21 | Microwave power dividing device |
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| CN (1) | CN105006623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782937A (en) * | 2021-10-08 | 2021-12-10 | 广东分数维无线科技有限公司 | Low-insertion-loss miniaturized high-frequency-ratio millimeter wave dual-band power divider and design method |
| CN114122662A (en) * | 2021-11-26 | 2022-03-01 | 北京航空航天大学 | Wilkinson power divider capable of enhancing isolation degree of low-frequency port |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2278657A1 (en) * | 2008-04-11 | 2011-01-26 | Mitsubishi Electric Corporation | Power divider |
| CN102386470A (en) * | 2010-08-31 | 2012-03-21 | 深圳富泰宏精密工业有限公司 | Microstrip line, impedance converter applying microstrip line and design method of microstrip line |
| US20140368294A1 (en) * | 2013-06-18 | 2014-12-18 | Electronics And Telecommunications Research Institute | Power divider |
| CN204391236U (en) * | 2015-01-30 | 2015-06-10 | 全金海 | Single-chip integration microwave broadband power divider |
-
2015
- 2015-07-21 CN CN201510430501.8A patent/CN105006623A/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 |
| CN102386470A (en) * | 2010-08-31 | 2012-03-21 | 深圳富泰宏精密工业有限公司 | Microstrip line, impedance converter applying microstrip line and design method of microstrip line |
| US20140368294A1 (en) * | 2013-06-18 | 2014-12-18 | Electronics And Telecommunications Research Institute | Power divider |
| CN204391236U (en) * | 2015-01-30 | 2015-06-10 | 全金海 | Single-chip integration microwave broadband power divider |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782937A (en) * | 2021-10-08 | 2021-12-10 | 广东分数维无线科技有限公司 | Low-insertion-loss miniaturized high-frequency-ratio millimeter wave dual-band power divider and design method |
| CN113782937B (en) * | 2021-10-08 | 2022-07-12 | 广东分数维无线科技有限公司 | Low-insertion-loss miniaturized high-frequency-ratio millimeter wave dual-band power divider and design method |
| CN114122662A (en) * | 2021-11-26 | 2022-03-01 | 北京航空航天大学 | Wilkinson power divider capable of enhancing isolation degree of low-frequency port |
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Application publication date: 20151028 |