CN108232382A - A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon - Google Patents
A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon Download PDFInfo
- Publication number
- CN108232382A CN108232382A CN201810001558.XA CN201810001558A CN108232382A CN 108232382 A CN108232382 A CN 108232382A CN 201810001558 A CN201810001558 A CN 201810001558A CN 108232382 A CN108232382 A CN 108232382A
- Authority
- CN
- China
- Prior art keywords
- microstrip line
- regular hexagon
- inner ring
- ring
- outer shroud
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 238000007142 ring opening reaction Methods 0.000 claims description 24
- 238000000605 extraction Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20354—Non-comb or non-interdigital filters
- H01P1/20381—Special shape resonators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention provides a kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon, the ring-like microstrip line construction of hexagon including medium substrate, medium substrate upper surface；Regular hexagon ring includes outer shroud and inner ring, a pair of 50 ohm output and input microstrip line, a pair of of V-type microstrip line, there are one be open for regular hexagon outer shroud side, each side there are one be open and draw four pairs of parallel microstrip lines in opening for regular hexagon inner ring, wherein two pairs of parallel microstrip lines are directed toward inner ring center, and with connecting external bias circuit on this microstrip line of 50 ohm of input and output microstrip lines relatively far apart, remaining two pairs of parallel microstrip line is far from inner ring center and is connected on outer shroud, when using different bias voltages, under the action of varactor, first passband of wave filter is continuously adjusted, second passband remains unchanged.Wave filter of the present invention has the features such as small, insertion loss is low, centre frequency is continuously adjusted, Out-of-band rejection is high, tuned speed is fast, tuning facilitates.
Description
Technical field
The present invention relates to microwave and millimeter wave technical fields, and in particular to a kind of regular hexagon ring microstrip line dual-passband electric tuning
Wave filter.
Background technology
With the rapid development of wireless communication technique, frequency spectrum resource occupies more and more intensive, the problem of leading to spectrum congestion
It becomes increasingly conspicuous.In order to more efficiently utilize limited frequency spectrum resource, the technologies such as spread spectrum, frequency hopping are widely used.Electric tuning is filtered
Wave device is the core component of frequency-hopping receiver high frequency front-end, and effect is the service frequency signal for selecting receiver, inhibits to be not required to
It is big etc. to need to have highly selective, low insertion loss, low passband fluctuation, high sensitivity and dynamic range for the signal for the frequency wanted
Feature.
At present, the tunable wave filter of microstrip line, such as bounce frequency filter, mainly using pectination line style, interdigital line style etc.
Structure, the wave filter coupled modes of these structures are single, and volume is larger, can not meet the requirements such as diversification and miniaturization.And 1/4
The wave filter of the new structures such as wave resonator, 1/2 wave resonator forms the structure of cross E types by the way of folding,
Although being conducive to the miniaturization of wave filter, the coupled structure of such wave filter is dumb, strongly limits wave filter
Development.
Invention content
The present invention for background technology there are the defects of, it is proposed that a kind of ring-like microstrip line dual-passband electric tuning of regular hexagon
Wave filter.The electrically tunable filter has that small, insertion loss is low, centre frequency is continuously adjusted, Out-of-band rejection is high, tuning speed
The advantages that degree is fast, tuning facilitates.
Technical solution of the present invention is as follows：
A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon, including medium substrate 1, positioned at medium substrate 1
The ring-like microstrip line construction of regular hexagon of upper surface；The ring-like microstrip line construction of regular hexagon includes first annular micro-strip knot
Structure and the second annular microstrip line construction；
The first annular microstrip line construction include the first regular hexagon outer shroud 21, the first regular hexagon inner ring 31, first
Regular hexagon outer shroud 21 is along the cross central line of regular hexagon in the side setting first far from the second annular microstrip line construction
Outer ring opening 71, the first regular hexagon inner ring 31 are opened along each side setting one of the cross central line of regular hexagon
Mouthful, respectively the first inner ring opening 81 and the second inner ring opening 83, the first inner ring opening 81 is in separate first outer ring opening 71
First to be mutually parallel is drawn on direction and draws the extraction microstrip line 93 of microstrip line 91 and second, phase is drawn in the second inner ring opening 83
Mutually parallel third draws microstrip line 101 and the 4th and draws microstrip line 103 to realize the connection with the first regular hexagon outer shroud 21,
First regular hexagon outer shroud 21 is connect by the first trapezoidal microstrip line 61 with the first V-type microstrip line 52, the first V-type microstrip line 52 with
Microstrip line 42 is inputted to be connected；Wherein, the first extraction 91 and first V-type microstrip line 52 of microstrip line is located at the same side；
Described second annular microstrip line construction and first annular microstrip line construction central symmetry, described first draws microstrip line
The 6th of 91 the first extraction microstrip lines 91 corresponding with the second annular microstrip line construction, which draws to connect to contain respectively on microstrip line 94, to be become
Hold the biasing circuit of diode.
Beneficial effects of the present invention are：
1st, the microstrip line in the ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention is hexagon
Structure has the characteristics that central symmetry so that its any one side can become coupling edge, can meet in the range of 360 degree
The requirement of multiple couplings meets the demand of complicated topological structure.
2nd, the ring-like microstrip line of regular hexagon of the present invention folds isometric microstrip line, compared to pectination line style, interdigital
Spatial area is greatly utilized in line style microstrip line, regular hexagon ring type structure, is conducive to the miniaturization of wave filter.
3rd, according to microstrip line theory, the input impedance entered in terms of the other end of capacitance of one end ground connection and opening for specific length
The input impedance of road microstrip line is equal, therefore, it is micro- can first in microstrip line of the present invention to be drawn to the extraction of microstrip line 91 and the 6th
It is equivalent to the capacitance of a ground connection respectively with line 94, is drawn by the way that varactor is applied to the first extraction microstrip line 91 and the 6th
Variable capacitance can be equivalent to by going out on microstrip line 94, solution is provided for design external bias circuit.
4th, the ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention, when the different biased electrical of application
During pressure, under the action of varactor, the first passband of the wave filter is continuously adjusted, and the second passband remains unchanged；The present invention
Electrically tunable filter has that small, insertion loss is low, centre frequency is continuously adjusted, Out-of-band rejection is high, tuned speed is fast, tuning
The features such as facilitating.
5th, in the ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention, the first V-type microstrip line 52
The side of regular hexagon outer shroud is parallel to the second V-type microstrip line 51, and effectively two regular hexagons are coupled, is reduced
Couple difficulty.
Description of the drawings
Fig. 1 is the structure top view of the ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention；
Fig. 2 is the ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention in outer biasing circuits
Analogous diagram；
Return loss S11, insertion loss S21 when Fig. 3 is varactor application bias voltage in the embodiment of the present invention
Curve graph.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and function of the present invention.The present invention can also pass through other different specific embodiments
It is embodied or practiced, the various details in this specification can also be based on different viewpoints and application, without departing from the present invention
Spirit under carry out various modifications or alterations.
Embodiment
As shown in Figure 1, for a kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon provided by the invention, including
Medium substrate 1, the ring-like microstrip line construction of regular hexagon positioned at 1 upper surface of medium substrate；The ring-like microstrip line of regular hexagon
Structure includes the first ring-like microstrip line construction and the second ring-like microstrip line construction；
The first annular microstrip line construction include the first regular hexagon outer shroud 21, the first regular hexagon inner ring 31, first
Regular hexagon outer shroud 21 is along the cross central line of regular hexagon in the side setting first far from the second annular microstrip line construction
Outer ring opening 71, the first regular hexagon inner ring 31 are opened along each side setting one of the cross central line of regular hexagon
Mouthful, respectively the first inner ring opening 81 and the second inner ring opening 83, the first inner ring opening 81 is in separate first outer ring opening 71
First to be mutually parallel is drawn on direction and draws the extraction microstrip line 93 of microstrip line 91 and second, phase is drawn in the second inner ring opening 83
Mutually parallel third draws microstrip line 101 and the 4th and draws microstrip line 103, and third draws microstrip line 101 and the 4th and draws micro-strip
Line 103 is connected with the first regular hexagon outer shroud 21, and the first regular hexagon outer shroud 21 passes through the first trapezoidal 61 and the first V of microstrip line
Type microstrip line 52 connects, and the first V-type microstrip line 52 is connected with 50 ohm of input microstrip lines 42；Wherein, described first micro-strip is drawn
91 and first V-type microstrip line 52 of line is located at the same side, and the first V-type microstrip line 52 is located remotely from the one of the first outer ring opening 71
Side and parallel with the side of the second regular hexagon outer shroud；Described first draws biased electrical of the connection containing varactor on microstrip line 91
Road；
Described second annular microstrip line construction and first annular microstrip line construction central symmetry, the second annular microstrip line construction
Including the second regular hexagon outer shroud 22, the second regular hexagon inner ring 32, the second regular hexagon outer shroud 22 along regular hexagon horizontal stroke
The second outer ring opening 72,32 edge of the second regular hexagon inner ring are set in the side far from first annular microstrip line construction to center line
One opening of each side setting of the cross central line of regular hexagon, respectively third inner ring opening 82 and the 4th inner ring
Opening 84, third inner ring opening 82 draw the 5th to be mutually parallel on the direction far from the second outer ring opening 72 and draw microstrip line
92 and the 6th draw microstrip line 94, and the 7th extraction microstrip line 102 and the 8th being mutually parallel is drawn in the 4th inner ring opening 84 and is drawn
Go out microstrip line 104 to realize the connection with the second regular hexagon outer shroud 22, the second regular hexagon outer shroud 22 is trapezoidal micro- by second
Band line 62 is connect with the second V-type microstrip line 51, and the second V-type microstrip line 51 is connected with 50 ohm of output microstrip lines 41；Wherein, it is described
6th extraction 94 and second V-type microstrip line 51 of microstrip line is located at the same side, and the second V-type microstrip line 51 is located remotely from outside second
Ring 72 side of opening and parallel with the side of the first regular hexagon outer shroud；Described 6th, which draws connection on microstrip line 94, contains transfiguration two
The biasing circuit of pole pipe.
In the present embodiment, in ring-like microstrip line construction, the width of regular hexagon outer shroud is 1.9mm, regular hexagon inner ring
Width is 1.3mm；50 ohm of length 2.8mm for outputting and inputting microstrip line, width 0.93mm；The width of V-type microstrip line is
0.6mm；The width of trapezoidal microstrip line is 1.1mm；The spacing of regular hexagon outer shroud and regular hexagon inner ring is 0.6mm；Positive six side
The length of two parallel microstrip lines (91,93,92,94) of shape inner ring opening is 1.8mm；The length of side of regular hexagon outer shroud is
12mm；The outer shroud of regular hexagon and opening (71,72,81,82,83,84) size of inner ring are 1.2mm.
In the present embodiment, medium substrate 1 is using FR4 substrates, dielectric constant 4.6, fissipation factor 0.01, thickness
0.508mm；Varactor uses the SMV1413 series varactors of skyworks companies, is encapsulated using SC-79, chokes
Inductance is 100nH, and current-limiting resistance is 100 ohm, ground capacity 100pF.50 ohm of external sub-miniature A connectors of input and output microstrip line
And be connected on vector network analyzer and measure, when voltage changes between 0V to 30V, the first bandpass center frequency of wave filter
Rate changes to 1.038GHz from 753MHz, tuning range 285MHz, and insertion loss changes to 5.190dB by 2.699dB, and
Two passband central frequencies is 1.276GHz and remain constant, insertion loss 3.805dB, return loss 46.993dB, and
All there are three transmission zero, Out-of-band rejection height under each bias for the electrically tunable filter.
The present invention is micro- using extending in 50 ohm of input and output microstrip lines to the opening of the inner ring of the regular hexagon ring of side
External bias circuit is connected respectively on band line, under the action of varactor, uses different bias voltages so that wave filter
Passband be continuously adjusted；Meanwhile wave filter of the present invention also has that small, insertion loss is low, centre frequency is continuously adjusted, band is outer
Inhibit the features such as height, loading DC feedback is convenient, tuned speed is fast, tuning facilitates.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, all those of ordinary skill in the art without departing from disclosed spirit with being completed under technological thought
All equivalent modifications or change, should by the present invention claim be covered.
Claims (1)
1. a kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon, including medium substrate (1), positioned at medium substrate
(1) the ring-like microstrip line construction of the regular hexagon of upper surface；The ring-like microstrip line construction of regular hexagon includes first annular micro-strip
Cable architecture and the second annular microstrip line construction；
The first annular microstrip line construction include the first regular hexagon outer shroud (21), the first regular hexagon inner ring (31), first
Regular hexagon outer shroud (21) is along the cross central line of regular hexagon in the side setting far from the second annular microstrip line construction the
One outer ring opening (71), the first regular hexagon inner ring (31) are set respectively along the left and right sides of the cross central line of regular hexagon
First inner ring is open (81) and the second inner ring opening (83), and the first inner ring is open (81) in the side far from the first outer ring opening (71)
First to be mutually parallel is drawn upwards and draws microstrip line (91) and the second extraction microstrip line (93), is drawn in the second inner ring opening (83)
Go out the third being mutually parallel and draw microstrip line (101) and the 4th extraction microstrip line (103) to realize and the first regular hexagon outer shroud
(21) connection, the first regular hexagon outer shroud (21) are connect by the first trapezoidal microstrip line (61) with the first V-type microstrip line (52),
First V-type microstrip line (52) is connected with input microstrip line (42)；Wherein, the first extraction microstrip line (91) and the first V-type are micro-
Band line (52) is positioned at the same side；
Described second annular microstrip line construction and first annular microstrip line construction central symmetry, described first draws microstrip line (91)
Connection contains respectively on 6th extraction microstrip line (94) of the first extraction microstrip line (91) corresponding with the second annular microstrip line construction
The biasing circuit of varactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001558.XA CN108232382B (en) | 2018-01-02 | 2018-01-02 | A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001558.XA CN108232382B (en) | 2018-01-02 | 2018-01-02 | A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108232382A true CN108232382A (en) | 2018-06-29 |
| CN108232382B CN108232382B (en) | 2019-06-21 |
Family
ID=62644910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810001558.XA Active CN108232382B (en) | 2018-01-02 | 2018-01-02 | A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108232382B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146536A (en) * | 2019-12-25 | 2020-05-12 | 南通大学 | Fixed high passageway frequency adjustable duplexer of low passageway frequency |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777678A (en) * | 2010-03-08 | 2010-07-14 | 华东交通大学 | Double-mode double-band band-pass filter based on hexagonal ring resonator |
| CN104269588A (en) * | 2014-10-22 | 2015-01-07 | 重庆大学 | Small-scale hexagonal three-mode filter based on center branch knot loading |
| CN104701591A (en) * | 2015-03-19 | 2015-06-10 | 华南理工大学 | Electrically adjusting common mode rejection filter based on selective frequency coupling |
-
2018
- 2018-01-02 CN CN201810001558.XA patent/CN108232382B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777678A (en) * | 2010-03-08 | 2010-07-14 | 华东交通大学 | Double-mode double-band band-pass filter based on hexagonal ring resonator |
| CN104269588A (en) * | 2014-10-22 | 2015-01-07 | 重庆大学 | Small-scale hexagonal three-mode filter based on center branch knot loading |
| CN104701591A (en) * | 2015-03-19 | 2015-06-10 | 华南理工大学 | Electrically adjusting common mode rejection filter based on selective frequency coupling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146536A (en) * | 2019-12-25 | 2020-05-12 | 南通大学 | Fixed high passageway frequency adjustable duplexer of low passageway frequency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108232382B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102324599B (en) | Balanced type radio frequency voltage tunable bandpass filter with constant absolute bandwidth | |
| US9515362B2 (en) | Tunable bandpass filter | |
| CN102280678B (en) | Balanced radio frequency electrically tunable bandpass filter with constant relative bandwidth | |
| CN106410337B (en) | A kind of more transmission zero filters of single-chamber substrate integration wave-guide | |
| CN104701591B (en) | Electrically adjusting common mode rejection filter based on selective frequency coupling | |
| CN103094648A (en) | Radio frequency reconfigurable band-pass filter with wide frequency and wide adjustment range of broadband | |
| CN102403563A (en) | Powder divider integrating single-frequency bandpass filter | |
| CN104466335A (en) | Electric adjusting power divider with filter function | |
| CN105720339A (en) | Dual-band adjustable band-pass filter | |
| CN105098303A (en) | Power divider with double-band filter function | |
| CN110459839A (en) | A kind of frequency adjustable differential double-passband filter | |
| Vanukuru | Millimeter-wave bandpass filter using high-Q conical inductors and MOM capacitors | |
| US7541888B2 (en) | Dual band coupled-line balanced-to-unbalanced bandpass filter | |
| CN205621831U (en) | Adjustable band pass filter of dual -frenquency | |
| CN108232382B (en) | A kind of ring-like microstrip line dual-passband electrically tunable filter of regular hexagon | |
| US7511596B2 (en) | Dual bandpass filter having serial configuration of coupled-line filters | |
| CN107634293B (en) | There are two the Mini Microstrip low-pass filters of transmission zero for a kind of tool | |
| CN104051832A (en) | Miniaturized broadband band-pass filter based on spiral resonator | |
| CN204205018U (en) | A kind of electric adjusting power distributor with filter function | |
| CN108110388A (en) | Electricity adjusts the constant bandwidth broadband filter of transmission zero | |
| CN106207331A (en) | High-performance tunable filter based on Zero order resonator | |
| CN202364184U (en) | Balanced radio frequency electric adjustment band pass filter with constant absolute bandwidth | |
| CN202259613U (en) | Balanced type RF electrically tunable band-pass filter with constant relative bandwidth | |
| CN114497936A (en) | Lumped element differential broadband band-pass filter | |
| CN104051827A (en) | Broadband band-pass filter based on spiral defect ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230417 Address after: 341400 Building 16, Phase I, Lingang Electronic Information Industrial Park, Longling Town, Nankang District, Ganzhou City, Jiangxi Province Patentee after: Jiangxi chenchuang Electronic Material Co.,Ltd. Address before: 611731, No. 2006, West Avenue, Chengdu hi tech Zone (West District, Sichuan) Patentee before: University of Electronic Science and Technology of China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230626 Address after: 341000 Industrial Park, Ganzhou economic and Technological Development Zone, Jiangxi Province Patentee after: Ganzhou Yanchuang Electronic Technology Co.,Ltd. Address before: 341400 Building 16, Phase I, Lingang Electronic Information Industrial Park, Longling Town, Nankang District, Ganzhou City, Jiangxi Province Patentee before: Jiangxi chenchuang Electronic Material Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Hexagonal Ring Microstrip Line Dual Pass Charged Tuned Filter Granted publication date: 20190621 Pledgee: Ganzhou rural commercial bank Limited by Share Ltd. Pledgor: Ganzhou Yanchuang Electronic Technology Co.,Ltd. Registration number: Y2024980002104 |