CN111384534B - Three-way band-pass power division filter - Google Patents
Three-way band-pass power division filter Download PDFInfo
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- CN111384534B CN111384534B CN202010130238.1A CN202010130238A CN111384534B CN 111384534 B CN111384534 B CN 111384534B CN 202010130238 A CN202010130238 A CN 202010130238A CN 111384534 B CN111384534 B CN 111384534B
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- 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
- H01P1/20309—Strip line filters with dielectric resonator
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- 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
- H01P1/2039—Galvanic coupling between Input/Output
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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
Abstract
The invention discloses a three-way band-pass power division filter, which comprises a dielectric substrate positioned at the upper part and a metal grounding plate positioned at the lower part, wherein an input port feeder line is arranged at one short side of the dielectric substrate, a first port output feeder line and a second port output feeder line are respectively arranged at two long sides of the dielectric substrate, a sixth E-type three-mode resonator, a fourth E-type three-mode resonator and a first E-type three-mode resonator are respectively arranged between the second output port feeder line and the input port feeder line, a fifth E-type three-mode resonator, a third E-type three-mode resonator and a second E-type three-mode resonator are respectively arranged between the first port feeder line and the input port feeder line, an isolation resistor is arranged between the second E-type three-mode resonator and the first E-type three-mode resonator, an isolation resistor is arranged between the fourth E-type three-mode resonator and the third E-type three-mode resonator, and an isolation resistor is arranged between the sixth E-type three-mode resonator and the fifth E-type three-mode resonator.
Description
Technical Field
The invention relates to the technical field of microwave passive devices, in particular to a three-passband power division filter.
Background
In modern wireless communication systems, a power divider and a filter are important rf front-end passive devices, and are often designed in a cascaded manner in order to implement power division and filtering functions at the same time, in this way, not only the volume of the circuit is increased, but also the performance of the circuit is reduced. Therefore, in recent years, research into a power divider with a filter response has been conducted in order to reduce the circuit size and improve the circuit performance. Meanwhile, with the continuous development of modern wireless communication systems, the demand for multiple communication systems is also increased.
Document 1[ k.j.song, m.y.fan, and f.zhang, "Compact triple-Band Power Divider Integrated Band-filtering Response Using Short-circuit SIRs," IEEE trans.complex.packag.manufact.techno., vo.7, No.7, juy.2017] can obtain three desired pass bands simultaneously by adjusting impedance ratio and electrical length by implementing a three-pass Band filtering Response Using a coupled Short-Circuited ladder impedance resonator and a half-wavelength resonator. However, the circuit structure is complex, and the port isolation is high, so that the problem of poor out-of-band rejection affects the wide application of the power division filter.
In document 2[ c. -f.chen, t. -y.huang, and r. -b.wu, "non-reactive network-type resonators and the upper pair to microstrip base filters," IEEE trans.micro.theory techn., vo.54, No.2, pp.755-762, feb.2006], a multi-passband microstrip filter is simply and efficiently implemented by using a mesh-type three-mode resonator on the basis of not significantly increasing the circuit size, but due to the limitation of the degree of freedom of design parameters, it is difficult to simultaneously implement design requirements for all passbands, and the implementation difficulty of the design is increased.
Document 3[ R.G, qi mez-Garcia, R.oeche-Sanchez, D.Psychogiou, and D.Perouis, "Singe/muti-band Wikinson-type power divider with embedded transforming sections and mapping to channels," IEEE transactions. circuits Syst.I, Reg.Papers, vo.62, No.6, pp.1518-1527, Jun.2015 ] proposes a new single/multi-pass Wilkinson power divider with inherent filtering capability, but with large circuit size and poor port isolation.
Disclosure of Invention
The purpose of the invention is as follows: with the rapid development of information technology, a single-pass power division filter cannot meet the application requirement of integrating a plurality of channels in one system, and the use of a multi-pass power division filter in a wireless communication system can effectively reduce the complexity of the whole circuit of the system and the volume of communication equipment, thereby achieving the purposes of simplifying the system and reducing the social cost. Therefore, the technical problem to be solved by the present invention is to provide a miniaturized and high-performance three-passband power division filter in view of the deficiencies of the prior art.
In order to solve the problems of large volume and poor performance of a circuit, the invention discloses a three-way power division filter realized by coupling a resonator and an input/output feeder line, which comprises a dielectric substrate positioned at the upper part and a metal grounding plate positioned at the lower part, wherein an input port feeder line is arranged at one short side of the dielectric substrate, a first port output feeder line and a second output feeder line are respectively arranged at two long sides of the dielectric substrate, a sixth E-type three-mode resonator, a fourth E-type three-mode resonator and a first E-type three-mode resonator are respectively arranged between the second output feeder line and the input port feeder line, a fifth E-type three-mode resonator, a third E-type three-mode resonator and a second E-type three-mode resonator are respectively arranged between the first port feeder line and the input port feeder line, and a first isolation resistor is arranged between the second E-type three-mode resonator and the first E-type three-mode resonator, and a second isolation resistor is arranged between the fourth E-type three-mode resonator and the third E-type three-mode resonator, and a third isolation resistor is arranged between the sixth E-type three-mode resonator and the fifth E-type three-mode resonator.
In the invention, the input port feeder line comprises a first 50 ohm microstrip line conduction band and an input coupling line, one end of the first 50 ohm microstrip line conduction band is close to the first side edge of the dielectric substrate, and the other end of the first 50 ohm microstrip line conduction band is connected with the input coupling line; the connection position of the conduction band of the first 50 ohm microstrip line and the first side edge of the dielectric substrate is an input end.
In the invention, the first output feeder line consists of a second 50 ohm microstrip line conduction band and a first output coupling line, the second 50 ohm microstrip line conduction band is close to the second side edge of the dielectric substrate, the first output coupling line is connected with the second 50 ohm microstrip line conduction band, and the second 50 ohm microstrip line conduction band is vertical to the input coupling line; the joint of the conduction band of the second 50 ohm microstrip line and the second side edge of the dielectric substrate is a first output end
In the invention, the second output feeder line consists of a third 50 ohm microstrip line conduction band and a second output coupling line, the third 50 ohm microstrip line conduction band is close to the third side edge of the dielectric substrate, the second output coupling line is connected with the third 50 ohm microstrip line conduction band, and the third 50 ohm microstrip line conduction band is vertical to the input coupling line; the connection position of the 50 ohm microstrip line conduction band and the third side edge of the dielectric substrate (9) is a third output end.
In the invention, the first E-type three-mode resonator comprises a first terminal open-circuit branch, a second terminal open-circuit branch and a first E-type terminal open-circuit branch;
and a first L-shaped terminal open-circuit branch and a second L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the first E-shaped terminal open-circuit branch respectively.
In the invention, the second E-type three-mode resonator comprises a third terminal open-circuit branch, a fourth terminal open-circuit branch and a second E-type terminal open-circuit branch;
and a third L-shaped terminal open-circuit branch and a fourth L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the second E-shaped terminal open-circuit branch respectively.
In the invention, the third E-type three-mode resonator comprises a third E-type terminal open-circuit branch knot;
and a fifth L-shaped terminal open-circuit branch and a sixth L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the third E-shaped terminal open-circuit branch respectively.
In the invention, the fourth E-type three-mode resonator comprises a fourth E-type terminal open-circuit branch knot;
and a seventh L-shaped terminal open-circuit branch and an eighth L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the fourth E-shaped terminal open-circuit branch respectively.
In the invention, the fifth E-type three-mode resonator comprises a fifth E-type terminal open-circuit branch knot;
a ninth L-shaped terminal open-circuit branch and a tenth L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the fifth E-shaped terminal open-circuit branch respectively;
the sixth E-type three-mode resonator comprises a sixth E-type terminal open-circuit branch;
and an eleventh L-shaped terminal open-circuit branch and a twelfth L-shaped terminal open-circuit branch are symmetrically arranged on two sides of the sixth E-shaped terminal open-circuit branch respectively.
In the invention, the first E-type three-mode resonator and the second E-type three-mode resonator are symmetrical on two sides of an input coupling line;
the third E-type three-mode resonator and the fourth E-type three-mode resonator are symmetrical on two sides of the input coupling line;
and the fifth E-type three-mode resonator and the sixth E-type three-mode resonator are symmetrical on two sides of the input coupling line.
Has the advantages that: the invention has compact structure, can be realized on a single PCB, is convenient for processing and integration and has low production cost. Meanwhile, the design of the three-passband power division filter is realized by coupling the resonator with the input/output feeder line, and the performances of miniaturization, low insertion loss, high out-of-band rejection and the like of the three-passband power division filter can be well realized. With the increasing demand for multi-standard wireless communication and the guarantee of high-quality radio frequency communication, the good performance of the three-passband power division filter is particularly important for the quality of radio frequency communication.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic perspective view of a power division filter based on an E-type resonator according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural dimension diagram of example 1.
Fig. 4 is an S-parameter simulation diagram of example 1.
Fig. 5 is a simulation diagram of the isolation characteristic S parameter of the two output ports of embodiment 1.
In the figure, an input port feeder line 1, a metal grounding plate 2, a first isolation resistor 3, a second isolation resistor 4, a second E-type resonator 5, a fourth E-type resonator 6, a second output feeder line 7, a fifth E-type resonator 8, a rectangular dielectric substrate 9, a third isolation resistor 10, a first E-type resonator 11, a third E-type resonator 12 and a sixth E-type resonator 13.
Detailed Description
Example (b):
as shown in fig. 1 and fig. 2, the three-passband power division filter based on the E-type resonator of the present invention includes a metal ground plate 2 disposed on a lower surface, an input port feeder 1, a first output feeder 15, and a second output feeder 7 disposed on an upper surface of a rectangular dielectric substrate 9. The first output port feeder line 15 and the second output port feeder line 7 are respectively close to two vertically adjacent long sides of the rectangular dielectric substrate 9, an E-type resonator 13611 is arranged between the second output port feeder line 7 and the input port feeder line 1, and an E-type resonator 8125 is arranged between the first port feeder line 6 and the input port feeder line 1. A first isolation resistor 3 is arranged between the E-resonators 5 and 11, a second isolation resistor 4 is arranged between the E-resonators 6 and 12, and a third isolation resistor 10 is arranged between the E-resonators 138.
A first E-type three-mode resonator 11, a fourth E-type three-mode resonator 6 and a sixth E-type three-mode resonator 13 are arranged between the input port feeder line 1 and the second output feeder line 7 respectively. The input port feeder 1 comprises a first 50 ohm microstrip line conduction band 17 and an input coupling line 16, one end of the first 50 ohm microstrip line conduction band 17 is close to the first side edge 9a of the dielectric substrate 9, and the other end of the first 50 ohm microstrip line conduction band is connected with the input coupling line 16; the connection between the first 50 ohm microstrip conduction band 17 and the first side of the dielectric substrate 9 is an input end.
The first output feeder line 15 consists of a second 50 ohm microstrip line conduction band 18 and a first output coupling line 19, the second 50 ohm microstrip line conduction band 18 is close to the second side edge 9b of the dielectric substrate 9, the first output coupling line 19 is connected with the second 50 ohm microstrip line conduction band 18, and the second 50 ohm microstrip line conduction band 18 is perpendicular to the input coupling line 16; the connection between the 50 ohm microstrip conduction band 18 and the second side of the dielectric substrate 9 is a first output terminal.
The second output feeder 7 consists of a third 50 ohm microstrip line conduction band 20 and a second output coupling line 21, the third 50 ohm microstrip line conduction band 20 is close to the third side edge 9c of the dielectric substrate 9, the second output coupling line 21 is connected with the third 50 ohm microstrip line conduction band 20, and the third 50 ohm microstrip line conduction band 20 is perpendicular to the input coupling line 16; the connection between the 50 ohm microstrip conduction band 20 and the third side of the dielectric substrate 9 is a third output terminal.
The first E-type three-mode resonator 11 comprises a first open-ended branch 22, a second open-ended branch 23 and a first E-type open-ended branch 24; a first L-shaped open-ended branch 25 and a second L-shaped open-ended branch 26 are symmetrically disposed on both sides of the first E-shaped open-ended branch 24.
The second E-type three-mode resonator 5 comprises a third open-ended branch 27, a fourth open-ended branch 28 and a second E-type open-ended branch 29; a third L-shaped open-ended branch 30 and a fourth L-shaped open-ended branch 31 are symmetrically disposed on both sides of the second E-shaped open-ended branch 29, respectively.
The third E-type three-mode resonator 12 includes a third E-type open-ended branch 32; a fifth L-shaped open-ended branch 33 and a sixth L-shaped open-ended branch 34 are symmetrically disposed on both sides of the third E-shaped open-ended branch 32, respectively.
The fourth E-type three-mode resonator 6 includes a fourth E-type open-ended stub 35; a seventh L-shaped open-ended branch 36 and an eighth L-shaped open-ended branch 37 are symmetrically disposed on both sides of the fourth E-shaped open-ended branch 35.
The fifth E-type three-mode resonator 8 comprises a fifth E-type terminal open-circuit stub 37; a ninth L-shaped open-ended branch 38 and a tenth L-shaped open-ended branch 39 are symmetrically disposed on both sides of the fifth E-shaped open-ended branch 37, respectively.
The sixth E-type three-mode resonator 13 includes a sixth E-type terminal open-circuit stub 40; an eleventh L-shaped open-ended branch 41 and a twelfth L-shaped open-ended branch 42 are symmetrically disposed on both sides of the sixth E-shaped open-ended branch 40.
The first E-type three-mode resonator 11 and the second E-type three-mode resonator 5 are symmetrical on two sides of the input coupling line 16; the third E-type three-mode resonator 12 and the fourth E-type three-mode resonator 6 are symmetrical on two sides of the input coupling line 16; the fifth E-type three-mode resonator 8 and the sixth E-type three-mode resonator 13 are symmetrical on two sides of the input coupling line 16;
the front view is shown in fig. 2 and the relevant dimensions are shown in fig. 3. The dielectric substrate 7 used had a relative dielectric constant of 3.55, a thickness of 0.508mm and a loss tangent of 0.0027. With reference to FIG. 3, various size parameters of the power division filterThe numbers are as follows: l5.00, W1.12, L1＝26.42,L2＝12.96,L3＝28.04,L4＝11.02,L5＝7.30,L6＝37.71,L7＝29.95,L8＝2.58,L9＝17.84,L10＝19.95,L11＝22.84,L12＝1.00,L13＝8.00,L14＝15.34,L15＝3.26,W1＝0.635,W2＝0.30,W3＝0.48,W4＝0.62,D＝0.32,g1＝0.14,g2＝0.20,g3＝0.15,g4＝0.13,g5＝0.19,g6＝0.07，R1＝2400Ω，R2＝820Ω，R3＝1200Ω.
Fig. 4 is a simulation diagram of the S parameter of the power dividing filter in this example, and it can be seen from the diagram that the center frequencies of the three pass bands of the three-pass band power dividing filter are 1.30GHz, 1.62GHz and 2.22GHz, the return loss in the pass band is lower than 13.0dB, and the minimum insertion loss is 1.3 dB. The six transmission zeros outside the passband enable the power division filter of the embodiment to have good frequency selectivity and out-of-band harmonic suppression.
Fig. 5 is a simulation diagram of the S-parameters of the matching characteristic and the isolation characteristic of the two power output ports of the power division filter in this example, and it can be seen from the diagram that the return loss of the output port in the passband of the power division filter in this example is lower than 13.0dB, and the in-band isolation is better than 18.8 dB.
The invention processes and corrodes the metal surfaces of the front surface and the back surface of the circuit substrate in the manufacturing process of the printed circuit board, thereby forming the required metal pattern, having simple structure, being realized on a single PCB board, being convenient for processing and integrating and having low production cost. Meanwhile, by utilizing a multimode E-type resonator and a network topology, good power distribution characteristics and filtering characteristics are obtained, and good port isolation characteristics are obtained by skillfully isolating resistors between the resonators.
The three-passband power division filter has the advantages of high selectivity, compact structure, good port isolation, good out-of-band rejection characteristic, high selectivity, small insertion loss and good out-of-band rejection performance, and is suitable for modern wireless communication systems.
In the embodiment, by using the dual-mode E-type resonator and the network topology, good power distribution characteristics and filter characteristics are obtained, and the resistor is ingeniously isolated between the resonators to obtain good port isolation characteristics, so that the three-passband power division filter which is high in selectivity, compact in structure, good in port isolation, good in out-of-band rejection characteristic selectivity, small in insertion loss and good in out-of-band rejection performance is realized, and the three-passband power division filter is suitable for a modern wireless communication system.
The invention utilizes the resonance mechanism of the branch-node loading type multimode resonator and the electric field distribution characteristic of the main transmission line, and has the characteristics of high selectivity and wide frequency band.
The invention utilizes the characteristics of coupling of a wavelength main transmission line and a resonator and zero point generation of an open-circuit branch, and has good out-of-band rejection characteristic.
The power division filter utilizes the indirect isolation resistor between the resonators, has good isolation and is suitable for modern wireless communication systems.
The present invention provides a concept and a method of a three-pass band power splitting filter, and a method and a way for implementing the technical scheme are many, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (1)
1. A three-way band power division filter is characterized by comprising a dielectric substrate (9) positioned on the upper portion and a metal grounding plate (2) positioned on the lower portion, wherein an input port feeder line (1) is arranged on one short side of the dielectric substrate (9), a first output feeder line (15) and a second output feeder line (7) are respectively arranged on two long sides of the dielectric substrate (9), a sixth E-type three-mode resonator (13), a fourth E-type three-mode resonator (6) and a first E-type three-mode resonator (11) are respectively arranged between the second output feeder line (7) and the input port feeder line (1), a fifth E-type three-mode resonator (8), a third E-type three-mode resonator (12) and a second E-type three-mode resonator (5) are respectively arranged between the first output feeder line (15) and the input port feeder line (1), a first isolation resistor (3) is arranged between the second E-type three-mode resonator (5) and the first E-type three-mode resonator (11), a second isolation resistor (4) is arranged between the fourth E-type three-mode resonator (6) and the third E-type three-mode resonator (12), and a third isolation resistor (10) is arranged between the sixth E-type three-mode resonator (13) and the fifth E-type three-mode resonator (8);
the input port feeder (1) comprises a first 50-ohm microstrip line conduction band (17) and an input coupling line (16), one end of the first 50-ohm microstrip line conduction band (17) is close to the first side edge (9 a) of the dielectric substrate (9), and the other end of the first 50-ohm microstrip line conduction band is connected with the input coupling line (16); the connection part of the first 50 ohm microstrip line conduction band (17) and the first side edge of the dielectric substrate (9) is an input end;
the first output feeder line (15) consists of a second 50-ohm microstrip line conduction band (18) and a first output coupling line (19), the second 50-ohm microstrip line conduction band (18) is attached to the second side edge (9 b) of the dielectric substrate (9), the first output coupling line (19) is connected with the second 50-ohm microstrip line conduction band (18), and the second 50-ohm microstrip line conduction band (18) is perpendicular to the input coupling line (16); the joint of the conduction band (18) of the second 50 ohm microstrip line and the second side edge of the dielectric substrate (9) is a first output end;
the second output feeder line (7) consists of a third 50-ohm microstrip line conduction band (20) and a second output coupling line (21), the third 50-ohm microstrip line conduction band (20) is attached to the third side edge (9 c) of the dielectric substrate (9), the second output coupling line (21) is connected with the third 50-ohm microstrip line conduction band (20), and the third 50-ohm microstrip line conduction band (20) is perpendicular to the input coupling line (16); the connection position of the third 50 ohm microstrip line conduction band (20) and the third side edge of the dielectric substrate (9) is a third output end;
the first E-type three-mode resonator (11) comprises a first terminal open-circuit branch (22), a second terminal open-circuit branch (23) and a first E-type terminal open-circuit branch (24);
a first L-shaped terminal open-circuit branch (25) and a second L-shaped terminal open-circuit branch (26) are symmetrically arranged on two sides of the first E-shaped terminal open-circuit branch (24) respectively;
the second E-type three-mode resonator (5) comprises a third terminal open-circuit branch (27), a fourth terminal open-circuit branch (28) and a second E-type terminal open-circuit branch (29);
a third L-shaped terminal open-circuit branch (30) and a fourth L-shaped terminal open-circuit branch (31) are symmetrically arranged on two sides of the second E-shaped terminal open-circuit branch (29) respectively;
the third E-type three-mode resonator (12) comprises a third E-type terminal open-circuit branch (32);
a fifth L-shaped terminal open-circuit branch (33) and a sixth L-shaped terminal open-circuit branch (34) are symmetrically arranged on two sides of the third E-shaped terminal open-circuit branch (32) respectively;
the fourth E-type three-mode resonator (6) comprises a fourth E-type terminal open-circuit branch (35);
a seventh L-shaped terminal open-circuit branch (36) and an eighth L-shaped terminal open-circuit branch (37) are symmetrically arranged on two sides of the fourth E-shaped terminal open-circuit branch (35) respectively;
the fifth E-type three-mode resonator (8) comprises a fifth E-type terminal open-circuit branch (37);
a ninth L-shaped terminal open-circuit branch (38) and a tenth L-shaped terminal open-circuit branch (39) are symmetrically arranged on two sides of the fifth E-shaped terminal open-circuit branch (37) respectively;
the sixth E-type three-mode resonator (13) comprises a sixth E-type terminal open-circuit branch (40);
an eleventh L-shaped terminal open-circuit branch (41) and a twelfth L-shaped terminal open-circuit branch (42) are symmetrically arranged on two sides of the sixth E-shaped terminal open-circuit branch (40) respectively;
the first E-type three-mode resonator (11) and the second E-type three-mode resonator (5) are symmetrical on two sides of the input coupling line (16);
the third E-type three-mode resonator (12) and the fourth E-type three-mode resonator (6) are symmetrical on two sides of the input coupling line (16);
the fifth E-type three-mode resonator (8) and the sixth E-type three-mode resonator (13) are symmetrical on two sides of the input coupling line (16);
the parameters of the power dividing filter are as follows: length of first 50 ohm microstrip line conduction band (17)LWidth of =5.00mmW=1.12 mm; length of the third open-ended branch (27)L 1=26.42mm, the distance between the two parallel ends of the second E-shaped open-ended branch (29)L 2=12.96mm, the sum of the length of the second E-shaped open-ended branch (29) and the length of the fourth L-shaped open-ended branch (31)L 3=28.04mm, and the length of the side of the fourth open-ended branch (28) perpendicular to the second E-shaped open-ended branch (29)L 4=11.02mm；
Length of sixth L-shaped terminal open-circuit branch (34)L 6=37.71mm, length of the third E-shaped terminal open branch (32)L 7=29.95mm, the distance between the upper end of the third E-type three-mode resonator (12) and the upper end of the fifth E-type three-mode resonator (8) of the first output coupling line (19) of the first output feed line (15)L 8=2.58mm；
Length of tenth L-shaped terminal open-circuit branch (39)L 10=19.95mm, length of fifth E-shaped open-ended branch (37)L 11=22.84mm；
The vertical length of the connection side of a first output coupling line (19) of the first output feeder line (15) and a second 50 ohm microstrip line conduction band (18)L 12=1.00mm, length of the conduction band (18) of the second 50 ohm microstrip lineL 13=8.00mm, the distance between the upper end of the second E-type three-mode resonator (5) and the upper end of the third E-type three-mode resonator (12) of the first output coupling line (19) of the first output feed line (15)L 14=15.34mm；
The width of the conduction band (18) of the second 50 ohm microstrip line isWThe width of the conduction band (20) of the third 50 ohm microstrip line isW(ii) a The width of the input coupling line (16) isW 1The width of the second open-ended branch (23) isW 2The width of the first E-shaped terminal open-circuit branch (24) isW 3The width of the second L-shaped terminal open-circuit branch (26) isW 3A seventh L-shaped terminal open branch (36) having a width ofW 2The fourth E-shaped open-ended branch (35) has a width ofW 22, the width of a second output coupling line (21) of the second output feeder line (7) at the lower end of the first E-type three-mode resonator (11) and the lower end of the fourth E-type three-mode resonator (6) isW 2The width of a second output coupling line (21) of the second output feeder line (7) at the lower end of a sixth E-shaped terminal open-circuit branch knot (40) isW 4The eleventh L-shaped terminal open branch (41) has a width ofW 4The sixth E-shaped terminal open-circuit branch (40) has a width ofW 2*2，W 1=0.635mm，W 2=0.30mm，W 3=0.48mm，W 4=0.62mm；
The distance between the input coupling line (16) and the first E-type three-mode resonator (11)g 1=0.14mm, and the distance between the coupling part of the first E-type three-mode resonator (11) and the second output coupling line (21) of the second output feeder line (7)g 2=0.20 mm; the distance between the fourth E-type three-mode resonator (6) and the coupling part of the second output coupling line (21) of the second output feeder line (7)g 4=0.13 mm; the distance between the open-circuit branch (40) of the sixth E-shaped terminal and the coupling part of the second output coupling line (21) of the second output feeder line (7)g 6=0.07mm；
The resistance value of the first isolation resistor (3) between the second E-type three-mode resonator (5) and the first E-type three-mode resonator (11)R 1=2400 Ω, and the resistance value of the second isolation resistor (4) between the fourth E-type three-mode resonator (6) and the third E-type three-mode resonator (12)R 2=820 Ω, resistance value of the third isolation resistor (10) between the sixth E-type three-mode resonator (13) and the fifth E-type three-mode resonator (8)R 3=1200Ω。
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| CN112018482B (en) * | 2020-08-20 | 2021-09-21 | 南京航空航天大学 | Ultra-wideband filtering power divider based on stepped impedance multimode resonator |
| CN113224491B (en) * | 2021-04-14 | 2022-01-14 | 大连海事大学 | Miniaturized broadband four-way filtering power divider based on non-equal-width three-wire coupling structure |
| CN113381142B (en) * | 2021-05-21 | 2022-03-11 | 南京智能高端装备产业研究院有限公司 | Three-passband power division filter with high frequency selectivity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403562A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating a dual-frequency bandpass filter |
| CN105958165A (en) * | 2016-06-08 | 2016-09-21 | 南京信息工程大学 | Miniature high-isolation triple-band and six-way microstrip combiner |
| CN106299575A (en) * | 2016-08-19 | 2017-01-04 | 南京理工大学 | A kind of Compact type broadband merit filter-divider |
| CN106602200A (en) * | 2016-12-02 | 2017-04-26 | 南京理工大学 | Micro-strip power dividing filter |
| CN109066039A (en) * | 2018-06-25 | 2018-12-21 | 南京师范大学 | A kind of novel micro-strip function divides duplexer |
| CN110429363A (en) * | 2019-08-29 | 2019-11-08 | 南京智能高端装备产业研究院有限公司 | A kind of three passband function filter-dividers based on multimode fork-shaped resonator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4303272B2 (en) * | 2006-09-15 | 2009-07-29 | 株式会社東芝 | Filter circuit |
| US9270008B2 (en) * | 2011-01-28 | 2016-02-23 | The University Of Electro-Communications | Transmission line resonator, bandpass filter using transmission line resonator, multiplexer, balanced-to-unbalanced transformer, power divider, unbalanced-to-balanced transformer, frequency mixer, and balance-type filter |
-
2020
- 2020-02-28 CN CN202010130238.1A patent/CN111384534B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403562A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating a dual-frequency bandpass filter |
| CN105958165A (en) * | 2016-06-08 | 2016-09-21 | 南京信息工程大学 | Miniature high-isolation triple-band and six-way microstrip combiner |
| CN106299575A (en) * | 2016-08-19 | 2017-01-04 | 南京理工大学 | A kind of Compact type broadband merit filter-divider |
| CN106602200A (en) * | 2016-12-02 | 2017-04-26 | 南京理工大学 | Micro-strip power dividing filter |
| CN109066039A (en) * | 2018-06-25 | 2018-12-21 | 南京师范大学 | A kind of novel micro-strip function divides duplexer |
| CN110429363A (en) * | 2019-08-29 | 2019-11-08 | 南京智能高端装备产业研究院有限公司 | A kind of three passband function filter-dividers based on multimode fork-shaped resonator |
Non-Patent Citations (2)
| Title |
|---|
| Design of a Compact Microstrip Triplexer-Power Divider With E-shaped Resonator;Liming Tang等;《2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT)》;20190522;论文第Ⅰ部分至第Ⅲ部分，图1和2 * |
| Liming Tang等.Design of a Compact Microstrip Triplexer-Power Divider With E-shaped Resonator.《2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT)》.2019, * |
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