CN205846214U - A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna - Google Patents
A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna Download PDFInfo
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- CN205846214U CN205846214U CN201620820259.5U CN201620820259U CN205846214U CN 205846214 U CN205846214 U CN 205846214U CN 201620820259 U CN201620820259 U CN 201620820259U CN 205846214 U CN205846214 U CN 205846214U
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Abstract
The utility model discloses a kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna, the double layer substrate structure including being cascading: the upper surface of first medium substrate is provided with feeding microstrip line, lower surface is provided with the first metal layer；The upper surface of second medium substrate is provided with the second metal level, lower surface is provided with the 3rd metal level, second medium substrate is provided through plated-through hole with the second metal level and the 3rd metal level on its surface, described plated-through hole becomes a closed array along the marginal distribution of the second metal level, the relevant position of the first metal layer and the second metal level is equipped with the circular gap that size is identical, circular gap is positioned in plated-through hole closed array, is provided with snail gap in the middle of the plated-through hole closed array of the 3rd metal level.This utility model receives mobile communication signal and wireless lan signal for simultaneously, and vertical direction has omnidirectional's characteristic in working frequency range, has low section, lightweight, high-gain, is prone to the advantage such as integrated with planar circuit.
Description
Technical field
This utility model relates to a kind of double frequency slit antenna, especially a kind of two-band omnidirectional substrate integration wave-guide spiral seam
Gap antenna.
Background technology
Owing to there is the various criterions such as 2G/3G/4G/WIFI in overlay area in mobile communication and WLAN simultaneously
Signal, it is often necessary to double frequency or multi-frequency omni-directional antenna receive the signal from all directions.
At present, the most many experts and scholars have studied various dual-band antenna, meets different communication needs,
Such as, double-frequency micro-strip antenna, double frequency plane Inverted F-shaped Antenna, Dual-band monopole antenna etc..These dual-band antenna great majority are
One-way radiation antenna, the antenna of energy omnidirectional radiation is less.Publication No. is patent of invention " a kind of CPW feed of CN105490012A
Double-frequency micro-strip antenna " use the upper surface that two type of falling Л grooves and coplanar integrated waveguide feeder line are arranged on medium substrate, real
Show and can cover WLAN Yu WIMAX all working frequency range, but antenna can not realize omnidirectional radiation in all working frequency range, and increased
Benefit is low.Publication No. is that the patent of invention " low section double frequency-band omnidirectional antenna " of CN105514612A uses at plate medium base with ground
The opposite side of plate prints radiation metal paster and the multiple mushroom-shaped resonant element structure being centered around around radiation metal paster, real
Show two band antennas of the antenna pattern having similar monopole antenna, 3.995～4.025GHz and 4.94 can be operated in
～in 6.06GHz frequency range, it is not met by receiving the need of the 2G/3G/4G/WIFI signal of the various criterions such as 1.8GHz, 2.4GHz
Want.Publication No. be the patent of invention " double frequency WIFI omnidirectional antenna " of CN104795630A use two low frequency radiation arms and two high
Radio-frequency radiation arm is symmetricly set in the both sides of described balance microstrip line, it is achieved that can be operated in simultaneously 2.4～2.5GHz and 5.15～
The omnidirectional antenna of 5.85GHz, can't receive mobile communication signal and wireless lan signal simultaneously.
In sum, receive the double frequency-band omnidirectional antenna of mobile communication signal and wireless lan signal relatively the most simultaneously
Few, compatible multi-standard, the antenna requirements of multiband are seemed the most urgent.
Summary of the invention
The purpose of this utility model is to propose a kind of two-band omnidirectional substrate integration wave-guide spiral slit antenna, can connect simultaneously
Receiving mobile communication signal and wireless lan signal, omni-directional is good and gain high.
Concrete technical scheme of the present utility model is as follows: a kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna, bag
Including first medium substrate and second medium substrate, described first medium substrate and second medium substrate are rectangle, first medium
Substrate stacked is on second medium substrate；The upper surface of first medium substrate is provided with feeding microstrip line, under first medium substrate
Surface is provided with the first metal layer；The upper surface of second medium substrate is provided with the second metal level, and the lower surface of second medium substrate sets
Having the 3rd metal level, it is logical that second medium substrate and second metal level on its surface and the 3rd metal level are provided through metallization
Hole, described plated-through hole becomes a closed array frame, the first metal layer and the second metal along the marginal distribution of the second metal level
Layer is equipped with the circular gap that size is identical, and two circular gap positions are relative, and described circular gap is positioned at plated-through hole envelope
In closed array frame, the 3rd metal level is provided with snail gap, and described snail gap is positioned at plated-through hole closed array
In frame.
The upper surface of first medium substrate is provided with microstrip line, for antenna feed, provides coupling impedance, the first metal layer and the
Circular gap on two metal levels by energy from the microstrip lines of first medium substrate to second medium substrate, the 3rd metal level
On snail gap play external radiated electromagnetic wave effect, second metal level on second medium substrate and its surface and the 3rd gold medal
The surrounding belonging to layer arranges plated-through hole, constitutes substrate integrated wave-guide cavity wave, strengthens antenna gain.Such antenna is used to tie
Structure, it is achieved that the high-gain of antenna, double frequency omnibearing radiance.
As further improvement of the utility model, the radius in described circular gap is more than or equal to the first metal layer width
1/6.Circular gap is too small, and the energy being coupled to second medium substrate is the lowest, even can not be by snail gap to outgoing
Penetrate.
As further improvement of the utility model, the length 2-longer than the length of second medium substrate of first medium substrate
5mm.First medium substrate is set and is slightly longer than second medium substrate, the joint of convenient welding feed.
The beneficial effects of the utility model: this utility model utilizes snail gap Net long wave radiation band can become with frequency
Change and change this characteristic, it is achieved double frequency-band omnidirectional antenna, use substrate integrated wave guide structure, be effectively improved antenna gain, this
Utility model can receive mobile communication signal and the wireless lan signal of the various criterions such as 1.8GHz, 2.4GHz simultaneously, is hanging down
Straight good in the plane internal antenna omni-directional of antenna substrate.
Accompanying drawing explanation
Fig. 1 is antenna structure explosive view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is upward view of the present utility model.
Fig. 4 is that antenna reflection coefficient S11 of the present utility model is with frequency variation diagram.
Fig. 5 is that antenna gain of the present utility model is with frequency variation diagram.
Fig. 6 is antennas orthogonal surface radiation directional diagram of the present utility model.
Fig. 7 is antenna horizontal plane radiation pattern of the present utility model.
Labelling in figure:
1. first medium substrate, 2. second medium substrate, 3. feeding microstrip line, 4. the first metal layer, 5. the second metal level,
6. the 3rd metal level, 7. plated-through hole, 8. circular gap, 9. snail gap.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with this utility model, it should be understood that these embodiments are only used for
This utility model is described rather than limits scope of the present utility model, after having read this utility model, art technology
Personnel all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.
As shown in Figures 1 to 3, a kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna, including first medium substrate 1 He
Second medium substrate 2, first medium substrate 1 is stacked on second medium substrate 2；The upper surface of first medium substrate 1 is provided with feedback
Electricity microstrip line 3, the lower surface of first medium substrate 1 is provided with the first metal layer 4；The upper surface of second medium substrate 2 is provided with second
Metal level 5, the lower surface of second medium substrate 2 is provided with the 3rd metal level 6, second medium substrate 2 and second metal on its surface
Layer 5 and the 3rd metal level 6 are provided through plated-through hole 7, and the second metal level 5 and the 3rd metal level 6 are by plated-through hole 7
The conductive metal layer of inwall is connected, and described plated-through hole 7 becomes a closed array frame along the marginal distribution of the second metal level 5,
Second metal level 5, second medium substrate the 2, the 3rd metal level 6 and plated-through hole 7 constitute substrate integration wave-guide；First metal
Layer 4 is equipped with, with the second metal level 5, the circular gap 8 that size is identical, and described circular gap 8 is manhole, two circular seams
Gap position is relative, and described circular gap 8 is positioned in plated-through hole closed array frame, and the 3rd metal level 6 is provided with snail seam
Gap 9, described snail gap 9 is positioned in plated-through hole closed array frame.Described first medium substrate 1, the first metal layer
4, the second metal level 5, second medium substrate 2 are rectangle with the 3rd metal level 6 and size is identical.
First medium substrate is all W1 with the width of second medium substrate, in correspondence vacuum during antenna lowest operating frequency
0.3 to 0.6 times of wavelength.The lowest in order to make first medium substrate be coupled to the energy of second medium substrate, circular seams is set
The radius of gap is more than or equal to the 1/6 of the first metal layer width.Weld the joint of feed, the length of first medium substrate for convenience
L1 is slightly longer than the length about 2-5mm of second medium substrate.
Each dimensional parameters of the present utility model influences each other restriction, the arrangement of antenna and the structure design performance to antenna
Impact is relatively big, according to performance requirement and the restriction of mounting condition in actual application, needs the performance parameter to antenna, such as direction
Figure, directivity factor, efficiency, input impedance, polarization and frequency band etc. carry out comprehensive study.This utility model is through the chi to antenna
The balance of the aspects such as very little, performance, Structural assignments, has finally given following preferably structural implementation, be following be embodied as
The performance parameter of example is visible, and structure of the present utility model has the most progressive effect.
First medium substrate uses thickness to be the wide-dielectric constant polytetrafluoroethylglass glass cloth of 2.0mm, and its upper and lower surface is equal
Covering copper coin, second medium substrate uses thickness to be the wide-dielectric constant polytetrafluoroethylglass glass cloth of 0.5mm, and its upper and lower surface is also
Covering copper coin, first medium substrate is all 2.2 with the relative dielectric constant ε r of second medium substrate, and losstangenttanδ is
0.001；Length L1 of first medium substrate and width W1 are respectively 78mm and 78mm, length L3 of second medium substrate and width
W3 is respectively 73mm and 78mm；The width W2 of microstrip line and length L2 are respectively 3.3mm and 43.3mm, and microstrip line is positioned at first Jie
On the center line of matter substrate；A diameter of 3mm of each through hole of plated-through hole array, the spacing between adjacent two through holes is
5.4mm；The radius in circular gap is 22mm；The radius R of snail gap outer most edge0For 26.67mm；The center of circle in circular gap
It is on same axis with the center in snail gap.
As shown in Figure 4, compared for the reflection coefficient S11 of this double frequency omnibearing substrate integration wave-guide spiral slit antenna with frequency
The simulation curve of change and experiment curv, it was demonstrated that when corresponding S11 is less than-10dB, this Dual-frequency-band slot antenna energy work simultaneously
Make 1.705～1.865GHz frequency ranges (can receive or launch operating frequency and be in the common mobile communication signal of this frequency range, as
The FDD-LTE signal of China Telecom, the GSM1800 signal of China Mobile, the GSM1800 signal etc. of CHINAUNICOM) and 2.321～
(frequency is in the common communication signal of this frequency range Wifi wireless lan signal, WiMAX WLAN to 2.646GHz frequency range
Signal, the 4G signal etc. of China Telecom/movement/UNICOM).
Fig. 5 gives the gain of this antenna with frequency variation diagram, visible when using substrate integrated wave guide structure as shown in the figure
The maximum gain of antenna can reach 5.5dBi in the frequency range observed.Meanwhile, by all for this antenna plated-through holes (i.e.
Substrate integrated wave guide structure) remove, other size constancy time obtain without antenna gain during substrate integrated wave guide structure with frequency
Change curve, contrasts the two curve, it is seen that use the substrate integration wave-guide chamber having plated-through hole array to be formed by surrounding
Physical ability strengthens antenna gain (especially in higher frequency range), improves the radiance of antenna.
Fig. 6,7 be this double frequency omnibearing substrate integration wave-guide spiral slit antenna at vertical (being perpendicular to the plane of antenna) and
Horizontal plane radiation pattern, antenna has omnidirectional radiation characteristic at low band resonance point, antennas orthogonal mask, and (resonance point frequency is
1.84GHz, corresponding gain is 4.4dBi), at high band resonances point, that antennas orthogonal face has omnidirectional radiation characteristic equally is (humorous
Dot frequency of shaking is 2.45GHz, and corresponding gain is 5dBi).
Claims (3)
1. a double frequency omnibearing substrate integration wave-guide spiral slit antenna, it is characterised in that: include first medium substrate and second
Medium substrate, described first medium substrate and second medium substrate are rectangle, and first medium substrate stacked is at second medium base
On plate；The upper surface of first medium substrate is provided with feeding microstrip line, and the lower surface of first medium substrate is provided with the first metal layer；The
The upper surface of second medium substrate is provided with the second metal level, and the lower surface of second medium substrate is provided with the 3rd metal level, second medium
Substrate is provided through plated-through hole with the second metal level and the 3rd metal level on its surface, and described plated-through hole is along second
The marginal distribution of metal level becomes a closed array frame, the first metal layer and the second metal level to be equipped with the circular seams that size is identical
Gap, two circular gap positions are relative, and described circular gap is positioned in plated-through hole closed array frame, and the 3rd metal level is provided with
Snail gap, described snail gap is positioned in plated-through hole closed array frame.
Double frequency omnibearing substrate integration wave-guide spiral slit antenna the most according to claim 1, it is characterised in that: described circle
The radius in gap is more than or equal to the 1/6 of the first metal layer width.
Double frequency omnibearing substrate integration wave-guide spiral slit antenna the most according to claim 1, it is characterised in that: first medium
The length 2-5mm longer than the length of second medium substrate of substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820259.5U CN205846214U (en) | 2016-07-29 | 2016-07-29 | A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820259.5U CN205846214U (en) | 2016-07-29 | 2016-07-29 | A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna |
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| CN205846214U true CN205846214U (en) | 2016-12-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067590A (en) * | 2016-07-29 | 2016-11-02 | 南京信息职业技术学院 | A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna |
| CN107104275A (en) * | 2017-04-10 | 2017-08-29 | 南通大学 | A kind of multilayer fabric filter antenna and microwave telecommunication system |
| CN108493626A (en) * | 2018-03-15 | 2018-09-04 | 哈尔滨工程大学 | A kind of four unit Dual-polarized Micro Strip Arrays based on SIC technologies |
| CN110011043A (en) * | 2019-04-12 | 2019-07-12 | 华南理工大学 | Four frequency dual polarized antennas and wireless telecom equipment |
-
2016
- 2016-07-29 CN CN201620820259.5U patent/CN205846214U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067590A (en) * | 2016-07-29 | 2016-11-02 | 南京信息职业技术学院 | A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna |
| CN106067590B (en) * | 2016-07-29 | 2018-11-13 | 南京信息职业技术学院 | A kind of double frequency omnibearing substrate integration wave-guide spiral slit antenna |
| CN107104275A (en) * | 2017-04-10 | 2017-08-29 | 南通大学 | A kind of multilayer fabric filter antenna and microwave telecommunication system |
| CN107104275B (en) * | 2017-04-10 | 2019-11-29 | 南通大学 | A kind of multilayer fabric filter antenna and microwave telecommunication system |
| CN108493626A (en) * | 2018-03-15 | 2018-09-04 | 哈尔滨工程大学 | A kind of four unit Dual-polarized Micro Strip Arrays based on SIC technologies |
| CN110011043A (en) * | 2019-04-12 | 2019-07-12 | 华南理工大学 | Four frequency dual polarized antennas and wireless telecom equipment |
| CN110011043B (en) * | 2019-04-12 | 2023-12-01 | 华南理工大学 | Four-frequency dual polarized antenna and wireless communication device |
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