CN105762478B - A kind of four mould resonators loading high resistant line - Google Patents
A kind of four mould resonators loading high resistant line Download PDFInfo
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- CN105762478B CN105762478B CN201610099948.6A CN201610099948A CN105762478B CN 105762478 B CN105762478 B CN 105762478B CN 201610099948 A CN201610099948 A CN 201610099948A CN 105762478 B CN105762478 B CN 105762478B
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- resonator
- dual
- mode resonator
- line
- high impedance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
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Abstract
A kind of four mould resonators for loading high resistant line of the disclosure of the invention, are related to microwave passive component field.The resonator is made of the high impedance line of a dual-mode resonator and two symmetrical connection transmission lines, wherein, dual-mode resonator is a kind of half-wave resonator of folding, the two-arm of its metal patch is folded inward, there is a via hole at patch bottom centre position, and two high impedance lines are then symmetrically attached to the two sides of dual-mode resonator, and are connected with transmission line.Above-mentioned all structures are printed on the front of medium substrate, and the back side of substrate is then completely by metal covering.The resonator overcomes existing ultra wide band trap device and realizes the deficiencies of multiple trap stopbands need the performances such as multiple resonators, frequency selectivity and notch bandwidth to need to improve and resonance structure is difficult to be applicable in or be transplanted to other radiating elements different UWB system.
Description
Technical field
The present invention relates to microwave passive component fields, specifically, being to be related to a kind of dual-mode resonator based on half-wavelength.
Background technique
Ultra wide band (UWB) wireless communication system has caused the extensive concern of people.And ultra-wideband antenna and filter
As the Primary Component of super broad band radio communication system, super broad band radio communication system is of crucial importance.But mesh
It is preceding in ultra-wideband antenna practical application still have some problems, one of them be exactly some existing wireless communication systems
Occupied the frequency band of certain UWB ranges, such as WiMAX (3.3~3.8GHz), IEEE 802.11a (5.15~5.35GHz&
5.725~5.825GHz) or X-band satellite communication service (7.25~8.395GHz) etc., therefore UWB system is in order to eliminate these
Influence of the wireless system to its own, it is necessary to the UWB microwave passive component with trap characteristic, such as antenna, filter etc..
The above problem has some solutions at present.For example slot structure is etched on the radiator of antenna and [is seen
J.Kim,C.S.Cho,and J.W.Lee,“5.2GHz notched ultra-wideband antenna using slot-
Type SRR, " Electronics.Letters, vol.42, no.6, pp.315-316, Mar.2006.], etched on feeder line
Gap structure [is shown in Y.H.Zhao, J.P.Xu, and K.Yin, " Dual band-notched ultra-wideband out
microstrip antenna using asymmetrical spurlines,”Electronics.Letters,vol.44,
No.18, pp.1051-U8, Aug.2008] or in the antenna structure be added one tuning metal struts structure [see C.Pan,
J.Duan,W.Tu,and J.Jan,“Band-notched ultra-wideband planar monopole antenna
using shunt open-circuited stub,”Microwave and Optical Technology Letters,
Vol.53, no.7, pp.1535-1537, Jul.2011.] it can realize the band-stop response of antenna, however in these structures,
It just needs undoubtedly to will increase the complexity of wireless system in this way using multiple resonance structures to generate multiple traps.Although more
Mould resonator has also been commonly used by people for more trap characteristic antennas now and [has seen Y.Sung, " Triple band-notched UWB
planar monopole antenna using a modified H-shaped resonator,”IEEE
Transactions on Antennas and Propagation,vol.61,no.2,pp.953-957,Feb.2013；
H.Liu and Z.Xu,“Design of UWB monopole antenna with dual notched bands using
one modified electromagnetic-band gap structure,”The Scientific World
Journal,vol.2013,pp.917965,2013；K.D.Xu,Y.Zhang,R.J.Spiegel,Y.Fan,W.T.Joines,
and Q.H.Liu,“Design of a stub-loaded ring-resonator slot for antenna
applications,”IEEE Transactions on Antennas and Propagation,vol.63,no.2,
Pp.517-524, Feb.2015.], but these use the trap antenna of multimode resonator, frequency selectivity and notch bandwidth etc.
Performance but still has many rooms for improvement.Importantly, since these resonance structures are all the knots to antenna radiation unit
Structure is changed, therefore is difficult to be applicable in or be transplanted in other UWB systems other different irradiation structures up.
Summary of the invention
It is an object of the invention to propose that a kind of four mould resonators that can produce trap, the resonator overcome existing ultra-wide
Band trap device realize multiple trap stopbands need the performances such as multiple resonators, frequency selectivity and notch bandwidth to need to improve with
And resonance structure is difficult to be applicable in or be transplanted to the deficiencies of other radiating elements different UWB system.
The technical solution adopted by the present invention to solve the technical problems is: a kind of four mould resonators loading high resistant line, should
Resonator is made of the high impedance line of a dual-mode resonator and two symmetrical connection transmission lines, wherein bimodulus is humorous
Vibration device is a kind of half-wave resonator of folding, and the two-arm of metal patch is folded inward, has at patch bottom centre position
One via hole, and two high impedance lines are then symmetrically attached to the two sides of dual-mode resonator, and are connected with transmission line.Above-mentioned institute
There is structure to be printed on the front of medium substrate, the back side of substrate is then completely by metal covering.Thus a kind of load of the present invention is high
Four mould resonators of line are hindered, which includes: metal floor, the medium substrate being set on metal floor, is set to medium
Resonant element on substrate；The resonant element includes: dual-mode resonator, high impedance connecting line, transmission line, wherein bimodulus resonance
Device is unclosed symmetrical side's ring structure, and there are the minor matters to extend internally at the both ends of the ring structure；The dual-mode resonator bottom
A through-hole is arranged in the center of portion's face opening；It facing away from dual-mode resonator opening edge and be provided with a transmission lines, pass through
The two sides of dual-mode resonator are connected to transmission line by two high impedance connecting lines respectively.
Further, two of opening edge where two high impedance connecting lines one end is connected to dual-mode resonator
On angle, the other end is connected to transmission line.
Further, two high impedance connecting lines are square-wave-shaped, and direction is perpendicular to transmission line.
The invention has the following beneficial effects:
(1) present invention can generate two traps in the frequency range of UWB, more compared to being realized using multiple resonators
The method of a trap stopband, structure are very simple.
(2) resonator based on proposition, each trap can contain there are two transmission zero, fall into compared to simple zero before
Wave design, can be improved the bandwidth of trap.
(3) resonator based on proposition can generate a transmission pole in the two sides of each trap, by adjusting resonance
Device physical size, the position of the transmission pole very close to the transmission zero in trap, can which thereby enhance the frequency selection of trap
Property.
(4) present invention is being hindered compared to the resonator for being added without two high impedance lines using identical resonator structure
There is higher suppression level in band, while reducing the difficulty requirement processed between gap line.
(5) when resonator of the invention is used for antenna, being placed on feeder line nearby can produce trap effect, can be very
Good is transplanted in the different various UWB antennas of radiating element.
Detailed description of the invention
Fig. 1 is traditional dual-mode resonator
Fig. 2 is Novel resonator proposed by the present invention
Fig. 3 is deformation version of the invention (the folded situation of high resistant line)
Fig. 4 is S1 of the Fig. 1 without through-hole, Fig. 1 and Fig. 2 in weak coupling1Simulation result.Resonator dimensions are as follows: l1=
15.24,l2=14.6, w1=0.7, w2=0.1, w3=1.1, S1=0.2, S2=0.16, through-hole radius is r=0.2
Fig. 5 be in the present invention resonator in different dimensional parameters (a) l1,(b)l2,(c)w2Lower reflection coefficient changes (S11)
Fig. 6 is the structure chart of (a) UWB reference antenna and (b) trap UWB antenna in embodiment
Fig. 7 is the return loss (S of UWB reference antenna and trap UWB antenna in embodiment11) simulation result
Fig. 8 is that (a) is humorous based on the present invention with reference to the filter back side UWB (c) with reference to UWB filter positive (b) in embodiment
The UWB notch filter of vibration device
Fig. 9 is the S parameter simulation result of Fig. 8 (c)
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples: a kind of novel four moulds resonator is as shown in Figure 2.
Completely by metal covering, upper surface metal layer includes the analog-U shaped resonance that a both arms are folded inward for the lower surface of its dielectric substrate
Device (see Fig. 1 (a)), bottom center have a metallization VIA.In the two sides of resonator, two high impedance microstrip lines are from humorous
Vibration device two-arm extends near feeder line, and resonator is connected with feeder line.Feeder line is 50 Ω microstrip lines, further, to subtract
The size of small resonator, then its length can be kept constant at winding shape high impedance microstrip design, such as
Shown in Fig. 3.
The principle of the present invention is:
A via hole (see Fig. 1 (b)) is added in originally analog-U shaped single mode resonator central, it can be in script resonant mode
The frequency of formula nearby generates an additional mode of resonance again.Since the frequency of both modes is close to each other, can tie
Synthesize a broader stopband.Two high impedance lines are added in resonator two sides again on this basis, resonator can be made to hinder
The centre frequency of band reduces, and is generating an additional stopband in higher frequency band, the two stopbands are compared to additional high impedance
Stopband before line has more superior frequency selective characteristic and higher band-rejected horizontal, and in addition there are can compared with multi-zero
To improve impedance matching.(see Fig. 4)
By test data analysis, size of the invention, the centre frequency of adjustable two stopbands are adjusted.Such as Fig. 5 (a)
It is shown, as increase l1Size after, the centre frequency of two stopbands of resonator can be made all to decline, increase l2Size can then make
The centre frequency of upper frequency stopband declines, and the variation of lower frequency stopband is faint, increases w2When, the center of lower frequency stopband
Frequency will decline, and the centre frequency of high-frequency stopband will not change.
Based on these characteristics of the invention, only need first to l when in use1Size be designed, by the frequency of low-frequency stop band
Rate is adjusted to the frequency needed, then adjusts l2The frequency of high frequency stopband is adjusted to required frequency, it in the process can be right
The frequency of low-frequency stop band generates faint offset, therefore finally also needs adjustment w2Tune is compensated to the offset of low-frequency stop band frequency
It is whole.
Embodiment 1:UWB trap antenna
For the exploitativeness for further illustrating above scheme, a specific example is given below, it is a kind of highly selective double sunken
Wave super wide band plane single pole sub antenna.It is 3.48 that dielectric substrate, which uses with a thickness of 34mm × 25mm × 0.508mm, dielectric constant,
4350 substrate of RT/Duorid.Shown in the structure chart of the antenna such as Fig. 6 (b), which is designed based on Fig. 6 (a).Simulation result is such as
Shown in Fig. 7, it can be seen that antenna produces two trap stopbands in 4.77-5.35GHz and 7.26-8.35GHz, in addition to two
Outside trap stopband, return loss S11- 10dB is still both less than in 3.2-12GHz, in 10.5-13GHz passband reflection coefficient
It is significantly improved.
Embodiment 2:UWB notch filter
Novel UWB filter based on traditional UWB filter (see Fig. 8 (a) and (b)), after loading resonator of the present invention
(see Fig. 8 (c)).Circuit shown in Fig. 8 (c) can produce band, and there are two the UWB of trap to respond.Wherein each trap has 2 transmission zero
Point, as shown in Figure 9.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.The skill of this field
Art personnel can disclosed the technical disclosures according to the present invention, make and various do not depart from other various specific changes of the invention
Shape and combination, these variations and combinations are still in protection scope of the present invention.
Claims (2)
1. a kind of four mould resonators for loading high resistant line, which includes: metal floor, the medium that is set on metal floor
Substrate, the resonant element being set on medium substrate；The resonant element includes: dual-mode resonator, high impedance connecting line, transmission
Line, wherein dual-mode resonator is unclosed symmetrical side's ring structure, and there is the branch to extend internally at the both ends of party's ring structure
Section；A through-hole is arranged in the center of the dual-mode resonator bottom face opening；It facing away from the setting of dual-mode resonator opening edge
There are a transmission lines, is connected to the two sides of dual-mode resonator with transmission line respectively by two high impedance connecting lines；Its feature exists
Where two high impedance connecting lines one end is connected to dual-mode resonator on two angles of opening edge, other end connection
In transmission line.
2. a kind of four mould resonators for loading high resistant line as described in claim 1, it is characterised in that two high impedances connect
Wiring is square-wave-shaped, and direction is perpendicular to transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099948.6A CN105762478B (en) | 2016-02-23 | 2016-02-23 | A kind of four mould resonators loading high resistant line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099948.6A CN105762478B (en) | 2016-02-23 | 2016-02-23 | A kind of four mould resonators loading high resistant line |
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| Publication Number | Publication Date |
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| CN105762478A CN105762478A (en) | 2016-07-13 |
| CN105762478B true CN105762478B (en) | 2018-12-18 |
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| CN113488752B (en) * | 2021-07-16 | 2022-05-10 | 辽宁工程技术大学 | Five-notch miniature ultra-wideband filter based on C-type resonator |
| CN117269625B (en) * | 2023-11-23 | 2024-02-20 | 中北大学 | Local electromagnetic wave enhanced detection structure combined with atomic air chamber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503900U (en) * | 2009-09-22 | 2010-06-09 | 华南理工大学 | Source-end coupling microstrip filter |
| CN203166046U (en) * | 2012-12-15 | 2013-08-28 | 华南理工大学 | Ultra wide band filter based on double-stub-loaded resonator |
| CN104124496A (en) * | 2014-07-29 | 2014-10-29 | 电子科技大学 | Microstrip tri-band bandpass filter |
-
2016
- 2016-02-23 CN CN201610099948.6A patent/CN105762478B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201503900U (en) * | 2009-09-22 | 2010-06-09 | 华南理工大学 | Source-end coupling microstrip filter |
| CN203166046U (en) * | 2012-12-15 | 2013-08-28 | 华南理工大学 | Ultra wide band filter based on double-stub-loaded resonator |
| CN104124496A (en) * | 2014-07-29 | 2014-10-29 | 电子科技大学 | Microstrip tri-band bandpass filter |
Non-Patent Citations (3)
| Title |
|---|
| Resonator type and positioning study for the creation of a potentially reconfigurable frequency notch in a UWB antenna return loss;Symeon Nikolaou，Photos Vryonides等;《IEEE：Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on》;20110531;2164-3342 * |
| Triple Band-Notched UWB Planar Monopole Antenna Using a Modified H-Shaped Resonator;Y. Sung;《IEEE Transactions on Antennas and Propagation 》;20121009;第61卷(第2期);953-957 * |
| 高性能小型化平面微波滤波器研究;周明祺;《中国博士学位论文全文数据库》;20101215(第12期);I135-61 * |
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