CN109888478A - A kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole - Google Patents
A kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole Download PDFInfo
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- CN109888478A CN109888478A CN201910188785.2A CN201910188785A CN109888478A CN 109888478 A CN109888478 A CN 109888478A CN 201910188785 A CN201910188785 A CN 201910188785A CN 109888478 A CN109888478 A CN 109888478A
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- 230000005855 radiation Effects 0.000 claims description 22
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- 238000013461 design Methods 0.000 description 7
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Abstract
The invention discloses a kind of Multifunctional radio-frequency devices based on dual polarization magnetoelectricity dipole, including dual polarization doublet irradiation structure, feed network structures and reflecting plate；The dual polarization doublet irradiation structure includes two mutually orthogonal vertical substrates, three pieces of orthogonal metal plates are set in each region that two mutually orthogonal vertical substrates are formed, wherein two pieces of metal plates are vertically set on reflecting plate, and another piece of metal plate lies in a horizontal plane in this two pieces metal plate tops perpendicular to reflecting plate；The feed network structures are constituted by loading parasitic hook-type from the Γ type feeder line of coupling line, and a minor matters of the Γ type feeder line load hook-type from coupling line, and the hook-type is arranged on vertical substrate from coupling line.The present invention changes circuit structure without additional, can individually control filter and antenna channel, realize dual-port Multifunctional radio-frequency device.
Description
Technical field
The present invention relates to wireless mobile communications fields, and in particular to a kind of multi-functional penetrating based on dual polarization magnetoelectricity dipole
Frequency device.
Background technique
The all frequency ranges of L, S, C, X are widely applied in China's microwave communication, and the application of K frequency range is still under development.Due to microwave
Very high frequency, wavelength again it is very short, skyborne propagation characteristic is close with light wave, that is, straight ahead, encounter stop just by
It reflects or is blocked, therefore the major way of microwave communication is horizon communication, need relay forwarding later more than sighting distance.Microwave station
Equipment include antenna, transceiver, modulator, multiplexing equipment and power-supply device, automatic control equipment etc..With tradition
Single-function device compare, Multifunctional microwave device have extensive potential application and advantage.Specifically, multifunction microwave is set
The standby variation that can respond operation requirement updates its function, reconfigures the variation to predict user demand, can constantly change
Kind environment, and reduce cost relevant to the hardware development period, size and time.
Filter and antenna are essential two passive devices of radio-frequency front-end.In order to make its functional diversities,
The filter that great effort design has tunable center frequency, bandwidth and transmission zero is put into, and in band logical and between resistance
Switch the filter of their operating modes.To restructural working frequency, extensive work is had also been made in radiation mode and polarized antenna.
In addition, also developed the collaborative design of various filters and antenna (filter antenna).However, all these designs only provide individually
Assembly function, i.e. filter or antenna.
It also developed the device of multifunction microwave element or programmable microwave component at this stage, the prior art is by using double
Function cavity resonator proposes a kind of filter and the integrated two-in-one design of antenna, realizes the filter of three different frequency bands
Wave and radiation operations, although realizing dual polarization function, bandwidth only has 0.33%；In addition, patch or dielectric resonator are used as
The radiator and filter of identical frequency, radiator only have single polarization application；And in the designs, filter and antenna
Common resonant device, therefore their centre frequency or bandwidth are unable to independent tuning.
In existing dual polarization filter antenna and bandpass filter application design, to consider how to realize passband edges tool
There are the frequency selectivity quickly to roll-off and certain Out-of-band rejection ability, and can individually control filter and antenna channel；
Also require antenna structure simpler, small volume.
Summary of the invention
In order to overcome shortcoming and deficiency of the existing technology, the present invention provides a kind of based on dual polarization magnetoelectricity dipole
Multifunctional radio-frequency device, has wideband filtered performance, and stable working performance has high-gain and high-frequency selectivity.
The present invention adopts the following technical scheme:
A kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole, including dual polarization doublet irradiation structure,
Feed network structures and reflecting plate；
The dual polarization doublet irradiation structure includes two mutually orthogonal substrates, is vertically set on reflecting plate,
Three pieces of orthogonal metal plates are set in each region that two mutually orthogonal vertical substrates are formed, wherein two blocks of metals
Plate is vertically set on reflecting plate, and another piece of metal plate lies in a horizontal plane in this two pieces metal plate tops perpendicular to reflecting plate；
The feed network structures are made of load hook-type from the Γ type feeder line of coupling line, a branch of the Γ type feeder line
Section load hook-type is arranged on vertical substrate from coupling line, the Γ type feeder line.
The metal plate that the present invention is horizontally arranged is rectangular.
The Γ type feeder line includes two perpendicular to the vertical minor matters of reflecting plate and a horizontal minor matters, two vertical minor matters
The both ends of horizontal minor matters are connected to, the hook-type loads in vertical minor matters from coupling line.
The length of described two vertical minor matters is different, wherein a vertical minor matters are connect with reflecting plate, junction is feedback
Electric port.
The hook-type from coupling line by four sections successively minor matters connected vertically constitute, the one of the initial segment minor matters and Γ shape feeder line
A minor matters are vertical.
The hook-type loads in the vertical minor matters connecting with reflecting plate from coupling line.
The present invention controls the centre frequency of Multifunctional radio-frequency device by adjusting the length of horizontal minor matters in Γ type feeder line.
For the present invention in the high band of dipole radiation passband, feed network structures serve as two resonators, magnetoelectricity dipole
Part non-radiating but the ground for being used as feed network structures, form a second-order bandpass filter.
Beneficial effects of the present invention:
1, the present invention is based on the Multifunctional radio-frequency devices of dual polarization magnetoelectricity dipole, can be by adjusting the Γ of vertical direction
Type feed line length carrys out tuned filter bandwidth to control the coupling between two resonators, and the Γ type feeder line for adjusting horizontal direction is long
It spends to control the center operating frequency of filter.
2, the present invention is based on the Multifunctional radio-frequency device of dual polarization magnetoelectricity dipole, can by adjusting horizontal metal plate and
The length of difference in height or electric dipole between reflecting plate individually to control the position of low frequency zero point, by adjusting hook-type self coupling
The length of zygonema individually to control the position of high frequency zero, and the two has been implemented in combination with good bandpass filtering performance, with interior gain
It is higher, with outer lower, effectively inhibit out-of-band radiation.
3, the present invention is based on the Multifunctional radio-frequency device of dual polarization magnetoelectricity dipole, magnetoelectricity dipole is several to filter characteristic
It does not influence, can individually control filter and antenna channels, promote the design of difunctional component.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 (a) and Fig. 2 (b) is the top view and side view of Fig. 1 respectively；
Fig. 3 (a) and Fig. 3 (b) is vertical substrate structural schematic diagram of the invention；
Fig. 4 is S parameter measurement and the simulation result diagram in the present embodiment under different frequency；
Fig. 5 is the measurement and simulation result diagram of actual gain under different frequency in the present embodiment；
Fig. 6 (a) and Fig. 6 (b) is that the embodiment of the present invention only motivates a port at center operating frequency 1.7GHz respectively
Measurement and simulated radiation ideograph；
Fig. 7 is the embodiment of the present invention whether there is or not the reflection coefficients of the emulation and measurement under self coupling part；
Fig. 8, which is the embodiment of the present invention, to be isolated whether there is or not the emulation under self coupling part with what is measured.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As shown in Figure 1, a kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole, including reflecting plate, dual polarization
Doublet irradiation structure and feed network structures.
Reflecting plate 5 is horizontal positioned, and dual polarization doublet irradiation structure is vertically disposed on reflecting plate, the dual polarization pair
Claiming a period of time irradiation structure includes two mutually orthogonal vertical substrates 6, and concrete operations are in the centre of a wherein vertical substrate
Position is provided with a rectangular aperture, another vertical substrate is vertically inserted through.Two mutually orthogonal vertical substrates form four areas
Domain, three pieces of orthogonal metal plates are arranged in each region, and three pieces of metal plates include two blocks of vertical metal plates 3 and one piece of level
Metal plate 4, two blocks of vertical metal plates 3 are vertically set on reflecting plate 5, and two pieces of vertical metal plate connections are vertical, horizontal metal
The top of two blocks of vertical metal plates is arranged in plate 4, and vertical metal plate generates a radiation zero in low frequency pass band edge, obtains
Sharp roll-off rate, four horizontal metal plates positioned at four regions are together as electric dipole, vertical metal plate is as four
Short-circuit patch antenna, that is, magnetic dipole of/mono- wavelength.Vertical metal plate, which generates zero point in low frequency radiation passband edge, to be led to
The length of the height and electric dipole of overregulating vertical metal plate controls.
The relative dielectric constant and thickness of vertical substrate 6 are respectively 3.55 and 0.81mm；Based on dual polarization magnetoelectricity dipole
Multifunctional radio-frequency device top view such as Fig. 2 (a) shown in, the side of the Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole
View, as shown in Fig. 2 (b).
The feed network structures are made of load hook-type from the Γ type feeder line 1 of coupling line 2, are arranged on vertical substrate,
The Γ type feeder line includes two vertical minor matters and a horizontal minor matters, and two vertical minor matters are connected to the both ends of horizontal minor matters,
The length of two vertical minor matters is different, and a vertical minor matters are connect with reflecting plate, and another hanging, and the hook-type minor matters load exists
In the vertical minor matters being connect with reflecting plate.
The hook-type from coupling line 2 by four sections successively minor matters connected vertically constitute, the initial segment minor matters connect with vertical minor matters
It connects, hook-type is towards upwards in the present embodiment.This hook-type can not only play optimization dipole radiation passband internal resistance from coupling line
Resist matched effect, a radiation zero can also be generated at high frequency pass band edge, have more sharp roll-off rate and greatly press down
The out-of-band radiation of antenna is made, this hook-type can be by changing length of the hook-type from coupling line from the radiation zero that coupling line generates
Degree has the function that tuned filter bandwidth to control.
In the higher frequency section of dipole radiation passband, feed network structures serve as two resonators, magnetoelectricity dipole subdivision
Non-radiating but the ground for being used as feeding network forms a second-order bandpass filter, controls by adjusting Γ shape feed line length
The center operating frequency of filter.
Without changing additional parameter, by the way that the connection type of two ports is arranged, filter antenna may be implemented in this structure
Radiation function and independent filter circuit function.
As shown in Fig. 3 (a) and Fig. 3 (b), the vertical metal plate 3 and horizontal metal plate 4 in the present embodiment are at 1.51GHz
New radiation zero is generated, obtains roll-off rate sharply in lower band edge；Hook-type is from coupling line 2 at 2.61GHz
Another radiation zero is generated, and obtains the sharply roll-off rate at upper band edge.
As shown in Figures 4 and 5, S in a specific embodiment of the invention11Frequency, S12Frequency and actual gain curve-
The measurement and simulation result diagram of frequency.It can be seen that the impedance bandwidth of emulation and test is essentially 1.42-1.82GHz and 2.8-
2.98GHz, relative bandwidth are respectively 24.7% and 6.8%.It can be seen that simulation result S11With test result S11Have well
Consistency.It can also be seen that the isolation of two ports of emulation and test is more than 23dB, influence each other smaller.
Refering to Fig. 5, the average gain emulated in passband 1.42-1.82GHz is 8.5dBi, and the average gain measured is about
It is 7.6dBi, the difference between measurement result and simulation result is mainly since manufacturing tolerance and other measurement errors cause
, but influence little；What is measured within the scope of 0.6-1.25GHz and 2.15-3GHz is more than with gain is low in outer ratio of gains band
13.5dB restrained effectively out-of-band radiation；And two radiation zeros are produced in passband edge, it is advantageously implemented filtering
Energy.
It refering to Fig. 6 (a) and Fig. 6 (b), is only swashed at center operating frequency 1.7GHz in a specific embodiment of the invention
Encourage measurement and the simulated radiation ideograph of a port, it can be seen that the low cross-pole for being less than 23dB is obtained in E/H plane
Change horizontal；
It is in a specific embodiment of the invention whether there is or not from the S under coupling line two states refering to Fig. 7-Fig. 811Frequency
And S12The simulation result diagram of frequency, it can be seen that excite four kinds of resonant modes respectively under the frequency of 1.4,1.6,2.8 and 3.0GHz
Formula, under the first two mode of resonance 1.4 and the frequency of 1.6GHz, S12Less than -15dB, thus in this band signal radiated or
Reflection；The passband for the low insertion loss that there are one centered on 2.9GHz and less than 0.8dB, it is therefore seen that signal passes through two
Port forms a second-order bandpass filter.
The present invention is as filter antenna in use, using load novel feedback of the hook-type from coupling line on a pair of of magnetoelectricity dipole
Electric network can generate a radiation zero outside antenna passband high frequency band, in addition, antenna element arm and balun floor can be
Antenna passband low-frequency range part forms a mode of resonance, generates radiation zero, realizes this pair by the two radiation zeros
The bandpass filtering of poliarizing antenna responds effect；As filter in use, magnetoelectricity dipole non-radiating in this condition, but
As the floor of feeding network, feeding network is then used as two resonators, forms second-order bandpass filter.It is therefore not necessary to additional
Change circuit structure, can individually control filter and antenna channel, realize dual-port Multifunctional radio-frequency device.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole, which is characterized in that including dual polarization doublet
Irradiation structure, feed network structures and reflecting plate；
The dual polarization doublet irradiation structure includes two mutually orthogonal substrates, is vertically set on reflecting plate, two
Three pieces of orthogonal metal plates are set in each region that a mutually orthogonal vertical substrate is formed, wherein two pieces of metal plates hang down
Straight to be arranged on reflecting plate, another piece of metal plate lies in a horizontal plane in this two pieces metal plate tops perpendicular to reflecting plate；
The feed network structures are made of load hook-type from the Γ type feeder line of coupling line, and the Γ type feeder line is arranged in vertical base
On plate.
2. Multifunctional radio-frequency device according to claim 1, which is characterized in that horizontal positioned metal plate is rectangular.
3. Multifunctional radio-frequency device according to claim 1, which is characterized in that the Γ type feeder line include two perpendicular to
The vertical minor matters of reflecting plate and a horizontal minor matters, two vertical minor matters are connected to the both ends of horizontal minor matters, the hook-type self coupling
Zygonema loads in vertical minor matters.
4. Multifunctional radio-frequency device according to claim 3, which is characterized in that the length of described two vertical minor matters is not
Together, wherein a vertical minor matters are connect with reflecting plate, junction is feed port.
5. Multifunctional radio-frequency device according to claim 1, which is characterized in that the hook-type is from coupling line by four Duan Yici
Minor matters connected vertically are constituted, and the initial segment minor matters are vertical with a minor matters of Γ shape feeder line.
6. Multifunctional radio-frequency device according to claim 4, which is characterized in that the hook-type from coupling line load with it is anti-
It penetrates in the vertical minor matters of plate connection.
7. Multifunctional radio-frequency device according to claim 3, which is characterized in that by adjusting horizontal minor matters in Γ type feeder line
Length control Multifunctional radio-frequency device centre frequency.
8. Multifunctional radio-frequency device according to claim 1, which is characterized in that in the high band of dipole radiation passband,
Feed network structures serve as two resonators, magnetoelectricity dipole subdivision non-radiating but the ground for being used as feed network structures, form one
A second-order bandpass filter.
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| CN201910188785.2A CN109888478B (en) | 2019-03-13 | 2019-03-13 | Multifunctional radio frequency device based on dual-polarized magneto-electric dipole |
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| CN201910188785.2A CN109888478B (en) | 2019-03-13 | 2019-03-13 | Multifunctional radio frequency device based on dual-polarized magneto-electric dipole |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416727A (en) * | 2019-07-23 | 2019-11-05 | 深圳市信维通信股份有限公司 | Dual polarization millimeter wave antenna unit, antenna system and mobile terminal |
| CN110444870A (en) * | 2019-10-09 | 2019-11-12 | 华南理工大学 | Base station, wideband dual polarized filtering magnetoelectricity dipole antenna and its radiating element |
| CN111224214A (en) * | 2019-12-31 | 2020-06-02 | 重庆品胜科技有限公司 | Miniature beam-controllable RFID reader antenna based on directional diagram reconstruction |
| CN111585027A (en) * | 2020-05-13 | 2020-08-25 | 广东工业大学 | Broadband low-profile filtering antenna based on parasitic patch |
| CN112072313A (en) * | 2020-08-27 | 2020-12-11 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Structure for realizing dual-frequency band of magnetoelectric dipole antenna |
| CN115588846A (en) * | 2022-10-26 | 2023-01-10 | 华南理工大学 | Compact dual-polarization filtering magnetoelectric dipole antenna and communication equipment |
| WO2024138312A1 (en) * | 2022-12-26 | 2024-07-04 | 京东方科技集团股份有限公司 | Dual-polarized magneto-electric dipole antenna and electronic device |
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Cited By (10)
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|---|---|---|---|---|
| CN110416727A (en) * | 2019-07-23 | 2019-11-05 | 深圳市信维通信股份有限公司 | Dual polarization millimeter wave antenna unit, antenna system and mobile terminal |
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| CN111585027A (en) * | 2020-05-13 | 2020-08-25 | 广东工业大学 | Broadband low-profile filtering antenna based on parasitic patch |
| CN112072313A (en) * | 2020-08-27 | 2020-12-11 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Structure for realizing dual-frequency band of magnetoelectric dipole antenna |
| CN115588846A (en) * | 2022-10-26 | 2023-01-10 | 华南理工大学 | Compact dual-polarization filtering magnetoelectric dipole antenna and communication equipment |
| WO2024138312A1 (en) * | 2022-12-26 | 2024-07-04 | 京东方科技集团股份有限公司 | Dual-polarized magneto-electric dipole antenna and electronic device |
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