CN103825075A - T-shaped branch loading built-in antenna combiner - Google Patents
T-shaped branch loading built-in antenna combiner Download PDFInfo
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- CN103825075A CN103825075A CN201410034304.XA CN201410034304A CN103825075A CN 103825075 A CN103825075 A CN 103825075A CN 201410034304 A CN201410034304 A CN 201410034304A CN 103825075 A CN103825075 A CN 103825075A
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Abstract
The invention relates to a T-shaped branch loading built-in antenna combiner. The combiner comprises a high-frequency band band-pass filter and a low-frequency band band-pass filter, wherein both the high-frequency band band-pass filter and the low-frequency band band-pass filter are formed by non-resonant units and T-shaped branch loading resonators in coupling connection onto two sides of the non-resonant units in a parallel line coupling mode; input of both the high-frequency band band-pass filter and the low-frequency band band-pass filter are carried out via two input ports and output is carried out via the same ports. The T-shaped branch loading built-in antenna combiner is simple in structure, small in the overall size and good in performances.
Description
Technical field
The present invention relates to a kind of microwave combiner, especially relate to a kind of antenna built-in combiner with transmission zero that adopts New Resonance element coupling to produce, belong to microwave telecommunication devices technical field.
Background technology
At present, the miniaturization that realizes antenna built-in combiner is an important topic of modern microwave Communication System Design, and as a Primary Component in communication system, the Miniaturization Design of microwave combiner becomes key technology wherein;
Conventionally, can adopt micro-band forms, cavity body structure, waveguiding structure and the construction of cable to realize mixer; But the equal Shortcomings of these modes---1, the volume of cavity body structure and waveguiding structure is larger, difficult design, and not easy of integration, generally can not be used for the built-in mixer of designing antenna; 2, the mixer of the construction of cable can be used in antenna system, but its loss is larger, and weight is just heavy; 3, microstrip structure, because its cost is low, volume is little, lightweight, simplicity of design, is easy in the integrated design that is widely applied to antenna built-in combiner;
Therefore micro-band forms that antenna built-in combiner mainly adopts has parallel coupled line form, stepped impedance form, open circuit coupling loop form; 1, parallel coupled line form micro-with mixer the micro-band mixer with respect to other two kinds of forms, design and debugging are simpler, but its size maximum; 2, micro-its small volume of band mixer of stepped impedance form, but the more difficult control of the spurious frequency of step electric impedance resonator, the harmonic frequency of one of them stepped impedance may produce and disturb another frequency range of mixer, and this has just increased the difficulty of design; 3, its size of mixer of open circuit coupling loop form is minimum in the mixer of three kinds of forms, but the coupling of opening a way between coupling loop is difficult to control;
For this reason, it is ZL201310206676.1 " a kind of three passband high temperature superconduction wave filters based on T-shaped minor matters loading stepped-impedance resonator " that East China University has researched and developed a kind of patent No., the T-shaped minor matters resonator of its proposition has enlightenment effect to miniature microwave mixer, and this patent studies emphatically how on microwave combiner, to apply T-shaped minor matters loading resonator.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the antenna built-in combiner that provides a kind of a kind of T-shaped minor matters simple in structure and that performance is good to load.
The object of the present invention is achieved like this: the antenna built-in combiner that a kind of T-shaped minor matters load, it is characterized in that: described mixer includes high band band pass filter and low-frequency range band pass filter, described high band band pass filter and low-frequency range band pass filter are of coupled connections and load resonator formation in the T-shaped minor matters of its both sides by disresonance unit with by parallel lines coupled modes, and high band band pass filter and low-frequency range band pass filter by two input port inputs, are exported by same output port respectively.
The antenna built-in combiner that a kind of T-shaped minor matters of the present invention load, described high band band pass filter includes disresonance unit, the left and right sides of described disresonance unit is connected with the T-shaped minor matters of high band by parallel lines coupled modes symmetrical coupled and loads resonator, and the T-shaped minor matters of the high band that is positioned at left side load resonator and are coupled and are connected with the output feeder of output port by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator and are coupled and are connected with the incoming feeder of high frequency input port by parallel lines coupled modes
Described low-frequency range band pass filter includes disresonance unit, the left and right sides of described disresonance unit is connected with the T-shaped minor matters of low-frequency range by parallel lines coupled modes symmetrical coupled and loads resonator, and the T-shaped minor matters of the high band that is positioned at left side load resonator and are coupled and are connected with the output feeder of output port by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator and are coupled and are connected with the incoming feeder of low frequency input port by parallel lines coupled modes.
The antenna built-in combiner that a kind of T-shaped minor matters of the present invention load, the T-shaped minor matters of described high band load resonator and the T-shaped minor matters of low-frequency range load resonator by the half-wavelength transmission line of a bending and the T-shaped minor matters formation of a bending.
Compared with prior art, the invention has the beneficial effects as follows:
The resonator design that the T-shaped minor matters of the present invention load is simple, function admirable, and the minor matters resonance of the resonator that T-shaped minor matters load, can produce a transmission zero at the stopband of filter, and this zero point is controlled, and its isolation characteristic excellence of the antenna combiner being made up of the filter of this form is particularly suitable in the design of F/A antenna system.More crucial is, under the condition that realizes same performance, the size of the filter structure of the mixer that the resonator being loaded by T-shaped minor matters forms is than the size reduction half by traditional filter structure being made up of single resonator, and micro-size with mixer of other three kinds of traditional forms of size of the mixer being therefore made up of T-shaped minor matters loading resonator is little.
Simultaneously, the present invention proposes one T-shaped minor matters is loaded to resonator structure for the built-in mixer of microwave antenna, the bandwidth of the different frequency range of the mixer obtaining not only can be controlled, and by T-shaped minor matters resonance, the transmission zero that the parallel lines coupled modes that adopt in structure all can produce at the stopband of mixer filter structure can be improved the isolation characteristic of mixer effectively.
And the present invention is not increasing under circuit area and processed complex degree prerequisite, adopts T-shaped minor matters resonator can reduce to a great extent the size of antenna built-in combiner; Adopt the mixer of parallel lines coupled structure can realize the control to its different frequency range bandwidth; Utilize the minor matters resonance of T-shaped resonator, adopt antiparallel coupled line structure to realize several transmission zeros at the stopband of the filter structure of mixer, effectively improve the characteristic of mixer; And simplicity of design of the present invention, is easy to integratedly, and circuit fabrication is convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention.
Fig. 2 is the structural representation of the high band band pass filter of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention.
Fig. 3 is the structural representation of the low-frequency range band pass filter of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention.
Fig. 4 is the structural representation of the disresonance unit (N1, N2) of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention.
Fig. 5 is the structural representation that the T-shaped minor matters of high band of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention load resonators (1,2).
Fig. 6 is the structural representation that the T-shaped minor matters of low-frequency range of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention load resonators (3,4).
Fig. 7 is that the T-shaped minor matters of high band of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention load the simulation result figure of resonators (1,2) in weak coupling situation.
Fig. 8 is the ADS simulation result figure of the antenna built-in combiner of a kind of T-shaped minor matters loading of the present invention.
Wherein:
The T-shaped minor matters of high band load resonator 1,2;
The T-shaped minor matters of low-frequency range load resonator 3,4;
Disresonance unit N1, N2.
Embodiment
Referring to Fig. 1 ~ 8, the antenna built-in combiner that a kind of T-shaped minor matters that the present invention relates to load, described mixer includes high band band pass filter and low-frequency range band pass filter,
Described high band band pass filter includes disresonance unit N1, the left and right sides of described disresonance unit N1 is connected with the T-shaped minor matters of high band by parallel lines coupled modes symmetrical coupled and loads resonator 1,2, and the T-shaped minor matters of the high band that is positioned at left side load resonator 1 and are coupled and are connected with the output feeder of output port Port1 by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator 2 and are coupled and are connected with the incoming feeder of high frequency input port Port2 by parallel lines coupled modes
Described low-frequency range band pass filter includes disresonance unit N2, the left and right sides of described disresonance unit N2 is connected with the T-shaped minor matters of low-frequency range by parallel lines coupled modes symmetrical coupled and loads resonator 3,4, and the T-shaped minor matters of the high band that is positioned at left side load resonator 3 and are coupled and are connected with the output feeder of output port Port1 by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator 4 and are coupled and are connected with the incoming feeder of low frequency input port Port3 by parallel lines coupled modes
The T-shaped minor matters of above-mentioned high band load resonator 1,2 and the T-shaped minor matters of low-frequency range load resonator 3,4 by the half-wavelength transmission line of a bending and the T-shaped minor matters formation of a bending, and the object of half-wavelength transmission line and the bending of T-shaped minor matters is to reduce the size of mixer;
In the present invention, T-shaped minor matters load resonator (the T-shaped minor matters of high band load resonator 1,2 and the T-shaped minor matters of low-frequency range load resonator 3,4) and have dual frequency characteristics, there are two resonance frequencys, be two modes of resonance, strange mould and even mould, the centre frequency of the filter being made up of resonator is controlled by the length of the half-wavelength transmission line of resonator, and the position at zero point is by the length control of T-shaped minor matters.
In Fig. 1 ~ 3, the length that the T-shaped minor matters of output port Port1 and high band load transmission line between resonator 1 is 9, the length of transmission line that the T-shaped minor matters of output port Port1 and low-frequency range load between resonator 3 is 10, changes the phase mutual interference of two filters that form mixer by adjusting distance 9 and distance 10;
In Fig. 1 and Fig. 2, the length of the parallel coupling feeder line of output port Port1 and high frequency input port Port2 is respectively 5 and 6, the length of the parallel coupling feeder line of Fig. 1 and Fig. 3 medium and low frequency input port Port3 and output port Port1 is respectively 8 and 7, by changing distance 5,6 or 7,8 and parallel coupling feeder line and resonator between distance can control the bandwidth that forms mixer two frequency band filters; And inner couplings between resonator is strengthened by disresonance unit.
The antenna built-in combiner that the T-shaped minor matters of the present embodiment load, adopts high band bandpass filter structures as shown in Figure 2 and low-frequency range bandpass filter structures structure as shown in Figure 3; The signal of two-way different frequency range is inputted by high frequency input port Port2 and low frequency input port Port3 respectively, load resonator 2 and the T-shaped minor matters loading of low-frequency range resonator 4 by parallel coupled line structure feed to the T-shaped minor matters of high band respectively, then be coupled to the T-shaped minor matters of high band by disresonance unit N1 and N2 again and load resonator 1 and the T-shaped minor matters loading of low-frequency range resonator 3, be finally coupled to output port Port1 by parallel coupled line;
The resonator element that mixer adopts is the dual-mode resonator that T-shaped minor matters load, the size of the mixer being made up of this resonator is than traditional micro-size reduction half with mixer by the logical form of band, the T-shaped minor matters resonance of dual-mode resonator can produce a transmission zero at the sideband of the filter structure that forms mixer, and this zero point is controlled.The input and output of antenna built-in combiner all adopt the feeding classification of parallel coupled line, by adjusting the length of parallel coupled line, can control the broadband of two frequency bands of mixer with the gap width of resonator, simultaneously, parallel coupled line and resonator between coupling, can produce transmission zero at the stopband of the filter structure that forms mixer, improve the isolation characteristic of mixer.
It should be noted that: above-mentioned execution mode is only the optimization scheme of this patent, and any change that those skilled in the art do for such scheme or improvement are all within the protection range of this patent.
Claims (3)
1. the antenna built-in combiner that T-shaped minor matters load, it is characterized in that: described mixer includes high band band pass filter and low-frequency range band pass filter, described high band band pass filter and low-frequency range band pass filter are of coupled connections and load resonator formation in the T-shaped minor matters of its both sides by disresonance unit with by parallel lines coupled modes, and high band band pass filter and low-frequency range band pass filter by two input port inputs, are exported by same output port respectively.
2. the antenna built-in combiner that a kind of T-shaped minor matters load as claimed in claim 1, it is characterized in that: described high band band pass filter includes disresonance unit (N1), the left and right sides of described disresonance unit (N1) is connected with the T-shaped minor matters of high band by parallel lines coupled modes symmetrical coupled and loads resonator (1, 2), and the T-shaped minor matters of the high band that is positioned at left side load resonator (1) and are coupled and are connected with the output feeder of output port (Port1) by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator (2) and are coupled and are connected with the incoming feeder of high frequency input port (Port2) by parallel lines coupled modes,
Described low-frequency range band pass filter includes disresonance unit (N2), the left and right sides of described disresonance unit (N2) is connected with the T-shaped minor matters of low-frequency range by parallel lines coupled modes symmetrical coupled and loads resonator (3,4), and the T-shaped minor matters of the high band that is positioned at left side load resonator (3) and are coupled and are connected with the output feeder of output port (Port1) by parallel lines coupled modes, the T-shaped minor matters of high band that are positioned at right side load resonator (4) and are coupled and are connected with the incoming feeder of low frequency input port (Port3) by parallel lines coupled modes.
3. the antenna built-in combiner that a kind of T-shaped minor matters load as claimed in claim 1 or 2, is characterized in that: the T-shaped minor matters of described high band load resonator (1,2) and the T-shaped minor matters of low-frequency range load resonator (3,4) by the half-wavelength transmission line of a bending and the T-shaped minor matters formation of a bending.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788472A (en) * | 2016-12-06 | 2017-05-31 | 广东欧珀移动通信有限公司 | The radio frequency front-end device and mobile terminal of carrier aggregation |
| CN109698397A (en) * | 2018-12-26 | 2019-04-30 | 成都九洲迪飞科技有限责任公司 | A method of realizing micro-strip combiner high-isolation |
| CN109713415A (en) * | 2018-12-26 | 2019-05-03 | 成都九洲迪飞科技有限责任公司 | A kind of micro-strip high-isolation binary channels combiner |
| CN110417408A (en) * | 2019-08-05 | 2019-11-05 | 重庆邮电大学 | A kind of 5G communication frequency source of based superconductive material |
| CN112864555A (en) * | 2021-01-25 | 2021-05-28 | 南通大学 | Suspension strip line cavity combiner with uniform impedance branch loading |
| CN113540727A (en) * | 2021-06-30 | 2021-10-22 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
| US11228077B2 (en) | 2019-06-17 | 2022-01-18 | Carrier Corporation | Microstrip DC block |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788472A (en) * | 2016-12-06 | 2017-05-31 | 广东欧珀移动通信有限公司 | The radio frequency front-end device and mobile terminal of carrier aggregation |
| CN106788472B (en) * | 2016-12-06 | 2019-08-16 | Oppo广东移动通信有限公司 | The radio frequency front-end device and mobile terminal of carrier wave polymerization |
| CN109698397A (en) * | 2018-12-26 | 2019-04-30 | 成都九洲迪飞科技有限责任公司 | A method of realizing micro-strip combiner high-isolation |
| CN109713415A (en) * | 2018-12-26 | 2019-05-03 | 成都九洲迪飞科技有限责任公司 | A kind of micro-strip high-isolation binary channels combiner |
| US11228077B2 (en) | 2019-06-17 | 2022-01-18 | Carrier Corporation | Microstrip DC block |
| CN110417408A (en) * | 2019-08-05 | 2019-11-05 | 重庆邮电大学 | A kind of 5G communication frequency source of based superconductive material |
| CN110417408B (en) * | 2019-08-05 | 2023-10-24 | 重庆嘉旦微电子有限公司 | 5G communication frequency source based on superconducting material |
| CN112864555A (en) * | 2021-01-25 | 2021-05-28 | 南通大学 | Suspension strip line cavity combiner with uniform impedance branch loading |
| CN112864555B (en) * | 2021-01-25 | 2021-10-29 | 南通大学 | Suspension strip line cavity combiner with uniform impedance branch loading |
| CN113540727A (en) * | 2021-06-30 | 2021-10-22 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
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