CN110247147A - A kind of micro-strip band logical power splitter - Google Patents
A kind of micro-strip band logical power splitter Download PDFInfo
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- CN110247147A CN110247147A CN201910614119.0A CN201910614119A CN110247147A CN 110247147 A CN110247147 A CN 110247147A CN 201910614119 A CN201910614119 A CN 201910614119A CN 110247147 A CN110247147 A CN 110247147A
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- power splitter
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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
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
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Abstract
The present invention provides a kind of micro-strip band logical power splitter, while realizing the function of filtering and function point, so that effective must reduce component size.The micro-strip band logical power splitter realizes a fourth-order band-pass frequency response, has a transmission zero on the right side of the passband at finite frequency, can improve the frequency selectivity on the right side of passband；In addition, output port in wider frequency range, can obtain higher isolation.The micro-strip band logical power splitter has many advantages, such as that superior performance, design process are simple.
Description
Technical field
The invention belongs to fields of communication technology, and in particular to a kind of microstrip power divider with bandpass response.
Background technique
In the higher frequency bands such as RF/Microwave/optical frequency, microstrip line is with small in size, light-weight, service band is wide, reliable
Property the height and advantages such as manufacturing cost is low, be widely used a kind of transmission line.Microstrip line has distribution parameter effect, electrical special
Property is closely related with structure size.Power splitter full name power divider is the important devices in communication or radar system.It is one
Input signal energy all the way is divided into the device of two-way or the equal or unequal energy of multiple-channel output by kind, can also be in turn by multichannel
Signal energy synthesis exports all the way, can be also referred to as combiner at this time.Due to power splitter can inversely used as combiner, so
Following discussion is all by taking power splitter as an example.It should ensure that certain isolation between the output port of one power splitter.In addition, filtering
Alternatively microwave device, function are to allow that the signal of a certain component frequency smoothly to pass through to device, and allow other one
The signal of component frequency is by biggish inhibition.Traditional filter and power splitter is two discrete elements, is undertaken different
Function.
Summary of the invention
In order to overcome traditional power splitter and filter to adhere to two elements separately, lead to larger-size disadvantage, the present invention mentions
A kind of novel microstrip power divider has been supplied, can be achieved at the same time the function of bandpass filtering and function point, there is the selection of good frequency
Property, good isolation, small size and be easy design the advantages that.Hereinafter referred to as micro-strip band logical power splitter.
The structure of model microstrip is as shown in Figure 1, mainly include three layers.Tier I is metal overlying strata, and tier ii is medium base
Piece, layer III are coating under metal.Micro-strip band logical power splitter of the present invention as shown in Fig. 2, in the metal overlying strata (I),
It is characterized by: first port (Port#1) is connected to the left end of parallel coupling three wire configuration (1) medium line section；Parallel coupling three
The right end of side line section is connected to first terminal open circuit minor matters (21) in cable architecture (1), while being connected to the short-circuit minor matters of intermediate load
First transmission line section (22)；The first transmission line section (22) that centre loads short-circuit minor matters is connected to second terminal open circuit minor matters
(23), while the right side of two cable architecture of the first parallel coupling (24) is connected to；The left side of first parallel coupling, two cable architecture (24)
It is connected to second port (Port#2)；The right end of side line section is connected to third terminal open circuit branch under parallel coupling three wire configuration (1)
It saves (31), while being connected to the intermediate second transmission line section (32) for loading short-circuit minor matters；Centre loads the second biography of short-circuit minor matters
Defeated line section (32) is connected to the 4th open-end minor matters (33), while being connected to the right side of two cable architecture of the second parallel coupling (34)
Side；Third port (Port#3) is connected on the left of second parallel coupling, two cable architecture (34)；First resistor (R1) is connected across flat
The out conductor section of row coupling three wire configuration (1) left end, second resistance (R2) are welded on intermediate the first transmission for loading short-circuit minor matters
Between line section (22) and the intermediate second transmission line section (32) for loading short-circuit minor matters；Short circuit is realized by metallization VIA.
Further, a fourth-order band-pass frequency response may be implemented in the micro-strip band logical power splitter, has on the right side of passband
There is a transmission zero at frequency limit rate, the frequency selectivity on the right side of passband can be improved.
The beneficial effect of micro-strip band logical power splitter of the present invention is: can will to be divided into two-way defeated for input signal all the way
Out, otherwise two-way input signal can be synthesized and is exported all the way；Power splitter has bandpass response, has a biography on the right side of passband
Defeated zero point, greatly improves frequency selectivity；Isolation between output port is high；Size is smaller, and design process is simple, is easy
The remarkable advantages such as debugging.
Detailed description of the invention
Fig. 1: microstrip line construction schematic diagram；
Fig. 2: micro-strip band logical power splitter schematic diagram；
Fig. 3: the structural parameters of micro-strip band logical power splitter mark schematic diagram；
Fig. 4: embodiment | S21| and | S11| test result figure；
Fig. 5: embodiment | S32| test result figure.
Specific embodiment
In order to embody creativeness and novelty of the invention, it is illustrated in the following with reference to the drawings and specific embodiments, but originally
The embodiment of invention is without being limited thereto.Without loss of generality, embodiment selects a common microstrip substrate, and relative dielectric constant is
3.66, substrate thickness 0.508mm.
The structural parameters of embodiment mark as shown in figure 3, specific value is (unit: mm): l1=14.9, l2=12.07,
l3=1.55, l4=1.41, w1=0.12, w2=0.64, w3=0.66, w4=0.55, w5=0.53, w6=0.35, s1=
0.17,s2=0.13 and d=0.4.In addition, R1=820 Ω, R2=330 Ω.Electromagnetic Simulation and processing have been carried out to embodiment, imitated
True and test result is as shown in Figures 4 and 5.A fourth-order band-pass frequency response may be implemented in the micro-strip band logical power splitter, and logical
There is a transmission zero at band right side 4.0GHz, effectively improve frequency selectivity.The centre frequency position of bandpass response
In 2.92GHz, 3dB relative bandwidth is 57.3%, and the Insertion Loss at centre frequency is 0.17dB, is greater than 12dB with interior return loss,
It is suppressed over 28dB in frequency range from 4.0GHz to 7.3GHz, is greater than from direct current to the isolation in 8.0GHz frequency range
21dB.The size of embodiment is 0.341 λg×0.154λg, wherein λgIt is the corresponding waveguide wavelength in centre frequency place.
Embodiment enumerated above has absolutely proved that micro-strip band logical power splitter of the present invention has good frequency
Response, the advantages that size is smaller, design process is simple have significant technological progress.Those skilled in the art will
, it is realized that the embodiments described herein, which is to help reader, understands the principle of the present invention, it should be understood that protection of the invention
Range is not limited to such specific embodiments and embodiments.Those skilled in the art can be disclosed according to the present invention
The technical disclosures make various various other specific variations and combinations for not departing from essence of the invention, and these variations and combinations are still
So within the scope of the present invention.
Claims (3)
1. a kind of micro-strip band logical power splitter, it is characterised in that: first port (Port#1) is connected to parallel coupling three wire configuration (1)
The left end of medium line section；The right end of side line section is connected to first terminal open circuit minor matters (21) in parallel coupling three wire configuration (1), together
When be connected to the intermediate first transmission line section (22) for loading short-circuit minor matters；Centre loads the first transmission line section (22) of short-circuit minor matters
It is connected to second terminal open circuit minor matters (23), while being connected to the right side of two cable architecture of the first parallel coupling (24)；First is parallel
It couples and is connected to second port (Port#2) on the left of two cable architectures (24)；The right side of side line section under parallel coupling three wire configuration (1)
End is connected to third terminal open circuit minor matters (31), while being connected to the intermediate second transmission line section (32) for loading short-circuit minor matters；In
Between load the second transmission line sections (32) of short-circuit minor matters and be connected to the 4th open-end minor matters (33), while it is parallel to be connected to second
Couple the right side of two cable architectures (34)；Third port (Port#3) is connected on the left of second parallel coupling, two cable architecture (34)；
First resistor (R1) is connected across the out conductor section of parallel coupling three wire configuration (1) left end, and second resistance (R2) is welded on intermediate add
It carries between the first transmission line section (22) of short-circuit minor matters and the intermediate second transmission line section (32) for loading short-circuit minor matters；Short circuit passes through
Metallization VIA is realized.
2. micro-strip band logical power splitter according to claim 1 is realized a fourth-order band-pass frequency response, is had on the right side of passband
There is a transmission zero at frequency limit rate.
3. micro-strip band logical power splitter according to claim 1 is based on microstrip substrate, relative dielectric constant 3.66, base
Piece is with a thickness of 0.508mm；Structural parameters (unit: mm): l1=14.9, l2=12.07, l3=1.55, l4=1.41, w1=
0.12,w2=0.64, w3=0.66, w4=0.55, w5=0.53, w6=0.35, s1=0.17, s2=0.13, d=0.4, R1=
820Ω,R2=330 Ω；The centre frequency of realized fourth-order band-pass frequency response is located at 2.92GHz, and 3dB relative bandwidth is
57.3%, be suppressed over 28dB in frequency range from 4.0GHz to 7.3GHz, in from direct current to 8.0GHz frequency range every
It is greater than 21dB from degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614119.0A CN110247147B (en) | 2019-07-09 | 2019-07-09 | Microstrip band-pass power divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614119.0A CN110247147B (en) | 2019-07-09 | 2019-07-09 | Microstrip band-pass power divider |
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| CN110247147A true CN110247147A (en) | 2019-09-17 |
| CN110247147B CN110247147B (en) | 2021-06-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332053A (en) * | 2020-09-24 | 2021-02-05 | 电子科技大学 | Wide-stopband filtering power divider |
| CN113224491A (en) * | 2021-04-14 | 2021-08-06 | 大连海事大学 | Miniaturized broadband four-way filtering power divider based on non-equal-width three-wire coupling structure |
| CN113871830A (en) * | 2020-06-30 | 2021-12-31 | 富华科精密工业（深圳）有限公司 | Balun structure and electronic device with same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035058A (en) * | 2009-10-02 | 2011-04-27 | 富士通株式会社 | Filter, transmitter-receiver, and amplifying circuit |
| CN108417938A (en) * | 2018-04-26 | 2018-08-17 | 电子科技大学 | A kind of micro-strip model filters power splitter |
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2019
- 2019-07-09 CN CN201910614119.0A patent/CN110247147B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035058A (en) * | 2009-10-02 | 2011-04-27 | 富士通株式会社 | Filter, transmitter-receiver, and amplifying circuit |
| CN108417938A (en) * | 2018-04-26 | 2018-08-17 | 电子科技大学 | A kind of micro-strip model filters power splitter |
Non-Patent Citations (1)
| Title |
|---|
| CHONG-YI LIOU 等: ""Triple-Band Microstrip Wilkinson Power Dividers with Controllable Frequency Responses"", 《2014 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS 2014)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871830A (en) * | 2020-06-30 | 2021-12-31 | 富华科精密工业（深圳）有限公司 | Balun structure and electronic device with same |
| CN112332053A (en) * | 2020-09-24 | 2021-02-05 | 电子科技大学 | Wide-stopband filtering power divider |
| CN112332053B (en) * | 2020-09-24 | 2022-04-05 | 电子科技大学 | Wide-stopband filtering power divider |
| CN113224491A (en) * | 2021-04-14 | 2021-08-06 | 大连海事大学 | Miniaturized broadband four-way filtering power divider based on non-equal-width three-wire coupling structure |
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| CN110247147B (en) | 2021-06-08 |
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