CN105186088A - Electrically tunable filtering type power divider having harmonic suppression function - Google Patents
Electrically tunable filtering type power divider having harmonic suppression function Download PDFInfo
- Publication number
- CN105186088A CN105186088A CN201510578594.9A CN201510578594A CN105186088A CN 105186088 A CN105186088 A CN 105186088A CN 201510578594 A CN201510578594 A CN 201510578594A CN 105186088 A CN105186088 A CN 105186088A
- Authority
- CN
- China
- Prior art keywords
- line
- type power
- filtering type
- power divider
- microstrip
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to an electrically tunable filtering type power divider having a harmonic suppression function, which belongs to the technical field of microwave passive devices. The electrically tunable filtering type power divider can integrate a tunable filter in the interior of a power divider, reduces complexity and size of the power divider, and suppresses even-order harmonics. The adopted innovative scheme of the electrically tunable filtering type power divider is mainly characterized in that a dual-mode filtering and phase-shifting branch is composed of an input parallel coupling line (2), a bending microstrip line (3), RF metallized through holes (4) and an output parallel coupling line (5), and the electrically tunable filtering type power divider has an even-order harmonic suppression characteristic. The electrically tunable filtering type power divider can be applied to microwave and millimeter wave communication system, and has the advantage of being suitable for miniature, low-cost and high-performance systems.
Description
Technical field
The invention belongs to microwave passive component technical field, particularly relate to a kind of electrically regulated filtering type power splitter with harmonic restraining function in microwave passive component.
Background technology
Along with the fast development of Modern Communication System, the function of microwave and millimeter wave circuit becomes increasingly complex, requirement on electric performance is more and more higher, simultaneously also towards the future development of miniaturization, lightweight, low cost.This development trend requires to be formed in order to the commercialization adapting to microwave and millimeter wave circuit.By multiple device merger in individual devices, form multifunction device, can effective reduction circuit size, such as make power splitter have filtering characteristic, the space of original filter can be saved; The adjustable of circuit is also realize miniaturized feasible program, such as in microwave system, for different signalling channels, there is the channel selection filter of respective channel quantity, port number is more, respective filter quantity is more, and single or a small amount of tunable filter can replace original multiple filters, thus greatly reduces size and the cost of circuit.
Adjustable filtering type power splitter, can reduce size and the cost of circuit greatly.Common filtering type power splitter divides additional filterings characteristic on arm in quarter-wave merit, although reduce size, be multiplied the number of filter.The existing power splitter with adjustable filtering characteristic, does not have the characteristic of harmonics restraint, from the signal that contiguous harmonic wave is revealed, has the operating state affecting each device, the characteristics such as interference normal signal, thus reduces the performance of whole microwave system.
Summary of the invention
The object of the invention is to propose a kind of electrically regulated filtering type power splitter with harmonic restraining function, this power splitter inside is integrated with bimodulus tunable filter, to realize extra adjustable filtering characteristic and the harmonics restraint of power splitter.
Technical scheme of the present invention is:
A kind of electrically regulated filtering type power splitter with harmonic restraining function, the input of this power splitter is made up of straight line 50 ohm microstrip, after microstrip line, be divided into laterally zygomorphic two branch roads, every bar props up route input parallel coupled line, bending microstrip line and exports parallel coupled line composition, on bending microstrip line, respectively there is a radio frequency metal through hole.Finally exported by two bending 50 ohm microstrip, 100 Ohmic resistances are connected on the initiating terminal between two bending 50 ohm microstrip.Whole circuit middle is two plated-through holes, and two patch capacitors and two varactors are symmetrically distributed in two plated-through hole both sides, and two patch capacitors are connected on outside, and respectively with input parallel coupled line with export Coupled Miccrostrip Lines and be connected.Two pull-up resistors, one end is connected respectively at patch capacitor and varactor are middle, and the other end is connected to DC feedback pad.
Further, bending microstrip line, input parallel coupled line and output parallel coupled line are connected into a loop, radio frequency metal through hole lays respectively on upper and lower two bending microstrip lines, and be positioned in the middle of it, bending microstrip line is connected to floor, constitutes upper and lower two 90 degree of phase shift dual-mode resonators with filtering characteristic.
Further, two patch capacitors, two varactors and two plated-through holes and straight line 50 ohm microstrip conllinear, and parallel with two pull-up resistors.DC feedback pad is immediately below two plated-through holes, and two pull-up resistors are symmetrical with DC feedback pad both sides, surround rectangle with varactor and two plated-through holes.
Advantage of the present invention and beneficial effect:
(1) the present invention has the advantage that structure is simple, size is little and cost is low.Two branch roads of power splitter, share with a pair varactor and tributary biasing circuit thereof, decrease varactor and biasing circuit, thus reduce the complexity of integrated circuit and size and cost.
(2) power splitter of the present invention is owing to using dual-mode resonator, makes bandwidth of the present invention wider, and the suppression characteristic of its even mould harmonic wave, improve the Out-of-band rejection of this power splitter.
(3) position of regulon of the present invention, can regulate two Frequency Synchronization of bimodulus simultaneously, achieve the integrally-regulated of bimodulus passband.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the S parameter simulation result of a kind of concrete structure of the present invention
Fig. 3 is the simulation result of the Out-of-band rejection of a kind of concrete structure of the present invention
Embodiment
In order to make object of the present invention, the technical problem of solution and technical scheme more clear, below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Fig. 1 is the structural representation of a concrete embodiment of the present invention.This power splitter is Wilkinson type power splitter, input is made up of straight line 50 ohm microstrip 1, live width is 1.1mm, after microstrip line, be divided into laterally zygomorphic two branch roads, every bar props up route input parallel coupled line 2, bending microstrip line 3 and exports parallel coupled line 4 and forms, and forms upper and lower two 90 degree of phase shift dual-mode resonators with filtering characteristic, being equivalent to electrical length is four/wavelength, and the merit that characteristic impedance is 70.7 ohm divides minor matters.Input parallel coupled line 2 and output parallel coupled line 4 live width are all 1.2mm, both border 6.8mm, and bending microstrip line 3 live width is 0.5mm.On bending microstrip line 3, a diameter is respectively had to be the radio frequency metal through hole 4 of 0.5mm, finally exported by two bending 50 ohm microstrip 6,100 Ohmic resistances 12 are connected on the initiating terminal between two bending 50 ohm microstrip 6, as the isolation resistance of Wilkinson type power splitter.Input parallel coupled line 2 and output parallel coupled line 5 middle are two plated-through holes 9, diameter is also 0.5mm, patch capacitor 7 and two varactors 8 are symmetrically distributed in two plated-through hole 9 both sides, two patch capacitors 7 are connected on outside, and respectively with input parallel coupled line 2 with export Coupled Miccrostrip Lines 5 and be connected, two pull-up resistors 10, one end is connected respectively at patch capacitor 7 and varactor 8 are middle, and the other end is connected to DC feedback pad 11.
Further, bending microstrip line, input parallel coupled line and output parallel coupled line are connected into a loop, radio frequency metal through hole lays respectively on upper and lower two bending microstrip lines, and be positioned in the middle of it, bending microstrip line is connected to floor, constitutes upper and lower two 90 degree of phase shift dual-mode resonators with filtering characteristic.Because radio frequency metal through hole 4 is by 90 degree of phase shift dual-mode resonator centre-point earths, the even mould resonance frequency of this resonator is moved to strange mould resonance frequency place, form two mode field, the even mould resonance frequency being originally harmonic wave is removed, reaches the object of harmonics restraint
Further, two patch capacitors, two varactors and two plated-through holes and straight line 50 ohm microstrip conllinear, and parallel with two pull-up resistors.DC feedback pad is immediately below two plated-through holes, and two pull-up resistors are symmetrical with DC feedback pad both sides, surround rectangle with varactor and two plated-through holes.
The medium substrate that this filtering type power splitter adopts is TaconicRF-35, and dielectric substrate thickness is 0.508mm, and upper and lower double layer of metal copper foil layer thickness is 18um, and final substrate size is 29.8mm × 33.9mm.Varactor 8 is InfineonBB857, and the adjustable extent of its capacitor's capacity is 0.5pF-6.5pF; Patch capacitor 7, capacitance is 0.5pF, is encapsulated as 0402, and 100 Ohmic resistances 12 are encapsulated as 0603, and two pull-up resistors 10, resistance is 10kohm, is encapsulated as 0603.
Fig. 2 is the emulation S parameter result of this concrete embodiment, can find out: when varactor 6 capacitance changes to 3.5pF from 0.5pF, the centre frequency of this filtering type power splitter, 2300MHz is changed to from 2000MHz, adjustable extent is 300MHz, simultaneously frequency of heart place at work, input return loss and isolation are all better than 15dB.Fig. 3 is the Out-of-band rejection simulation result of this concrete embodiment, can find out, 2 subharmonic are suppressed in below 20dB.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make according to these technology disclosed by the invention enlightenment and variously not depart from other various concrete distortion and combination of the present invention, and these distortion and combination are still in protection scope of the present invention.
Claims (3)
1. one kind has the electrically regulated filtering type power splitter of harmonic restraining function, it is characterized in that: the input of this power splitter is made up of straight line 50 ohm microstrip (1), after microstrip line, be divided into laterally zygomorphic two branch roads, every bar props up route input parallel coupled line (2), bending microstrip line (3) and exports parallel coupled line (5) composition, in bending microstrip line (3), respectively there is a radio frequency metal through hole (4); Finally exported by two bendings 50 ohm microstrip (6), 100 Ohmic resistances (12) are connected on the initiating terminal between two bendings 50 ohm microstrip (6); Input parallel coupled line (2) and output parallel coupled line (5) middle are two plated-through holes (9), two patch capacitors (7) and two varactors (8) are symmetrically distributed in two plated-through holes (9) both sides, two patch capacitors (7) are connected on outside, and respectively with input parallel coupled line (2) with export Coupled Miccrostrip Lines (5) and be connected; Two pull-up resistors (10), one end is connected respectively at patch capacitor (7) and varactor (8) are middle, and the other end is connected to DC feedback pad (11).
2. a kind of electrically regulated filtering type power splitter with harmonic restraining function according to claim 1, it is characterized in that: described bending microstrip line (3), parallel coupled line (2) will be inputted and export parallel coupled line (5) and connect into a loop, radio frequency metal through hole (4) lays respectively in upper and lower two bendings microstrip line (3), and be positioned in the middle of it, microstrip line (3) will be bent and be connected to floor, constitute upper and lower two 90 degree of phase shift dual-mode resonators with filtering characteristic.
3. a kind of electrically regulated filtering type power splitter with harmonic restraining function according to claim 1, it is characterized in that: two patch capacitors (7), two varactors (8) and two plated-through holes (9) and straight line 50 ohm microstrip (1) conllinear, and parallel with two pull-up resistors (10); DC feedback pad (11) is immediately below two plated-through holes (9), two pull-up resistors (10) are symmetrical with DC feedback pad (11) both sides, surround rectangle with varactor (8) and two plated-through holes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578594.9A CN105186088B (en) | 2015-09-12 | 2015-09-12 | A kind of electrically regulated filtering type power splitter with harmonic restraining function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578594.9A CN105186088B (en) | 2015-09-12 | 2015-09-12 | A kind of electrically regulated filtering type power splitter with harmonic restraining function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105186088A true CN105186088A (en) | 2015-12-23 |
| CN105186088B CN105186088B (en) | 2018-02-13 |
Family
ID=54908031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510578594.9A Active CN105186088B (en) | 2015-09-12 | 2015-09-12 | A kind of electrically regulated filtering type power splitter with harmonic restraining function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105186088B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932392A (en) * | 2016-05-13 | 2016-09-07 | 电子科技大学 | Broadband filtering type power divider |
| CN107464978A (en) * | 2017-08-31 | 2017-12-12 | 南京理工大学 | Balance turns non-equilibrium signal model filters power splitter |
| CN107634298A (en) * | 2017-08-16 | 2018-01-26 | 佳木斯大学 | Wilkinson power divider with harmonic restraining function |
| CN110474138A (en) * | 2019-08-29 | 2019-11-19 | 南京智能高端装备产业研究院有限公司 | A kind of restructural function filter-divider |
| CN114208044A (en) * | 2020-07-16 | 2022-03-18 | 株式会社藤仓 | Wireless communication module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489880A (en) * | 1993-08-10 | 1996-02-06 | Com Dev Ltd. | Power divider/combiner with lumped element bandpass filters |
| CN102403562A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating a dual-frequency bandpass filter |
| KR101224762B1 (en) * | 2011-07-18 | 2013-01-21 | 경희대학교 산학협력단 | Ultra wideband power divider/combiner with rejection band |
-
2015
- 2015-09-12 CN CN201510578594.9A patent/CN105186088B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489880A (en) * | 1993-08-10 | 1996-02-06 | Com Dev Ltd. | Power divider/combiner with lumped element bandpass filters |
| KR101224762B1 (en) * | 2011-07-18 | 2013-01-21 | 경희대학교 산학협력단 | Ultra wideband power divider/combiner with rejection band |
| CN102403562A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating a dual-frequency bandpass filter |
Non-Patent Citations (3)
| Title |
|---|
| AMARJIT KUMAR等: "A Compact Reconfigurable Concurrent Dual-Band Wilkinson Power Divider for noninvasive vital sign detection applications", 《SIGNAL PROPAGATION AND COMPUTER TECHNOLOGY(ICSPCT),2014 INTERNATIONAL CONFERENCE ON》 * |
| CHI-FENG CHEN 等: " Compact Microstrip Electronically Tunable Power Divider With Chebyshev Bandpass Response", 《PROCEEDINGS OF ASIA-PACIFIC MICROWAVE CONFERENCE 2014》 * |
| MITCHAI CHONGCHEAWCHAMNAN 等: "Frequency-selectable dual-band Wilkinson divider/combiner", 《IET MICROWAVES, ANTENNAS & PROPAGATION》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932392A (en) * | 2016-05-13 | 2016-09-07 | 电子科技大学 | Broadband filtering type power divider |
| CN107634298A (en) * | 2017-08-16 | 2018-01-26 | 佳木斯大学 | Wilkinson power divider with harmonic restraining function |
| CN107464978A (en) * | 2017-08-31 | 2017-12-12 | 南京理工大学 | Balance turns non-equilibrium signal model filters power splitter |
| CN107464978B (en) * | 2017-08-31 | 2019-07-12 | 南京理工大学 | Balance turns non-equilibrium signal model filters power splitter |
| CN110474138A (en) * | 2019-08-29 | 2019-11-19 | 南京智能高端装备产业研究院有限公司 | A kind of restructural function filter-divider |
| CN110474138B (en) * | 2019-08-29 | 2021-01-08 | 南京智能高端装备产业研究院有限公司 | Reconfigurable power division filter |
| CN114208044A (en) * | 2020-07-16 | 2022-03-18 | 株式会社藤仓 | Wireless communication module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105186088B (en) | 2018-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106571507B (en) | Multifunctional reconfigurable filter based on signal interference theory | |
| WO2013005264A1 (en) | Variable filter device and communication device | |
| US10381701B2 (en) | Filter circuit and frequency switching method | |
| CN105186088A (en) | Electrically tunable filtering type power divider having harmonic suppression function | |
| CN104466321B (en) | Double-frequency band-pass filter based on electromagnetic mixed coupling | |
| KR20090044796A (en) | Tunable resonator and tunable filter | |
| CN106935948A (en) | A kind of work(filter-divider | |
| JP2015084469A (en) | High-frequency circuit module | |
| CN105140613B (en) | A kind of one-segment electrically regulated filtering type power splitter | |
| CN104037477A (en) | Multi-band tunable microstrip band-pass filter | |
| CN106410337A (en) | Single-cavity substrate integrated waveguide multi-transmission-zero-point filter | |
| CN107275740A (en) | It is a kind of that there is the dual-frequency power divider for transmitting null character | |
| CN103986435B (en) | Miniaturized wide-stop-band restraint LTCC low-pass filter | |
| CN109088134B (en) | Microstrip band-pass filter | |
| TWI542070B (en) | Low-pass filter path and the use of its communication cavity device | |
| EP3386028B1 (en) | Combiner | |
| CN110429362B (en) | Reconfigurable filter based on T-shaped resonator | |
| Abbosh | Compact tunable low-pass filter using variable mode impedance of coupled structure | |
| Zhu et al. | Novel dual-band bandpass-to-bandstop filter using shunt PIN switches loaded on the transmission line | |
| CN212434808U (en) | Filter structure and filter | |
| CN110071351B (en) | Adjustable frequency band-pass filter based on cross coupling line | |
| CN210468054U (en) | Dielectric filter | |
| CN110364789B (en) | Multifunctional reconfigurable filter based on short circuit coupling line structure | |
| CN108493529B (en) | Double frequency filter | |
| CN105789789A (en) | Tunable dual-band bandstop filter based on center loaded coupling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |