CN104681935A - Double stop-band triangular ultra wideband patch antenna based on phase step resonator - Google Patents
Double stop-band triangular ultra wideband patch antenna based on phase step resonator Download PDFInfo
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- CN104681935A CN104681935A CN201310616904.2A CN201310616904A CN104681935A CN 104681935 A CN104681935 A CN 104681935A CN 201310616904 A CN201310616904 A CN 201310616904A CN 104681935 A CN104681935 A CN 104681935A
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- step resonator
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Abstract
The invention relates to a double stop-band triangular ultra wideband patch antenna based on a phase step resonator. The double stop-band triangular ultra wideband patch antenna based on the phase step resonator comprises a patch antenna 1 (comprising a regular triangular radiation unit and a feeder line), a dielectric substrate 2, a 3.5 GHz phase step resonator 3, a 5.6 GHz phase step resonator 4 and a grounding plate 5; the double stop-band triangular ultra wideband patch antenna is characterized in that resonation structures are arranged on the two sides of the feeder line of the antenna to realize the double band-notched function; the radiation unit of the antenna is of a regular triangular patch structure, and the grounding plate is partially tailored. The double stop-band triangular ultra wideband patch antenna realizes the ultra wideband transmission characteristic ( VSWRand lt; 2) from 3.1 GHz to 10.6 GHz, and respectively forms stop bands in the two narrow bands of 3.4 GHz - 3.7 GHz (WLAN frequency band) and 5.4 GHz - 6.0 GHz (WiMAX frequency band), so that the interference between the two frequency bands is effectively reduced.
Description
Technical field
The present invention relates to the dual-attenuation triangle ultra broadband paster antenna based on step resonator, add resonance structure in feeder both sides to realize two trap function, antenna radiation unit is equilateral triangle paster structure, and has carried out part cutting to floor.This antenna achieves the ultra wideband transmissions characteristic (VSWR<2) from 3.1GHz to 10.6GHz, and respectively at 3.4 ~ 3.7GHz(WLAN frequency range), 5.4 ~ 6.0GHz(WiMAX frequency range) two narrowband slice form stopband, effectively reduce and interference between this two frequency range.
Background technology
Ultra-wideband Communication Technology is widely used in the fields such as radar, location, electronic countermeasures and secure communication, is considered as most advanced and sophisticated military technology and close protection, until be just tending towards civilian in recent years gradually for a long time by various countries.The advantage of Ultra-wideband Communication Technology system can be summed up as follows: 1. highly concealed type." publicity " that radio spatial is propagated is the intrinsic deficiency of radio communication, and the bandwidth of ultra-wide band wireless communication can reach 1GHz and even higher, and average power is minimum needed for it, signal " is flooded " in ambient noise and other signals, can not be easily detected in.2. stronger multipath identification capability and the higher rate of information throughput.What super broad band radio communication system was launched is duration extremely short pulse, and duty ratio is extremely low, and multipath signal is separable in time.This temporal not overlapping being easy to isolates multipath component to make full use of the energy transmitted, and improves the signal to noise ratio of ultra-wideband communication system restituted signal, reduces the intersymbol interference because multi-path jamming causes.By anti-multipath jamming performance, super broad band radio communication system can realize high speed data transfers.3. power system capacity is large.Super broad band radio communication system sends the extremely low shock pulse of duty ratio, adopts address code modulation when jumping, is convenient to form the mobile network being similar to DS-CDMA system.Because super broad band radio communication system has very high processing gain and stronger multipath identification capability, therefore its customer volume is much higher than 3G system.4. penetration capacity is strong, be easy to realize location with communicate integrated.5. low in energy consumption.
Ultra-wideband antenna is one of key components of super broad band radio communication system, and its design need consider two aspects: 1. realize the ultra wideband transmissions characteristic (VSWR<2) from 3.1GHz to 10.6GHz; 2. consider with WLAN and WiMAX narrow band communication frequency range disturb problem mutually, the trap function of these narrowband slice will be possessed while antenna carries out broadband communications.Based on above 2 considerations, there is traditional method for designing with trap characteristic ultra-wideband antenna, namely by Analysis of Equivalent Circuit, antenna radiation unit is increased some slotted eye with specific function (as L-type groove, U-type groove) etc., to reach the object forming required stopband.Present invention employs the new method that filtration module combines with feeder, both avoided the complexity being realized trap by transformation irradiation structure, reached again good filtering performance, there is higher practical value.
Summary of the invention
The object of the present invention is to provide a kind of novel dual-attenuation ultra-wideband antenna.As shown in Figure 1, the present invention propose ultra-wideband antenna be made up of five parts, be that paster antenna 1(comprises radiating element and feeder line respectively), medium substrate 2,3.5GHz step resonator 3,5.6GHz step resonator 4 and ground plate 5.It should be noted that, ground plate, after cutting, is mainly positioned at feeder side, and Bu Jia floor, radiating element side.As shown in Figure 2, the profile of two resonators and size are as shown in Figure 3 for the structure of whole ultra-wideband antenna and size.
The technical solution used in the present invention:
Based on the dual-attenuation triangle ultra broadband paster antenna of step resonator, it is characterized in that, there is ultra wideband transmissions characteristic (VSWR<2) and 3.4 ~ 3.7GHz(WLAN frequency range of 3.1GHz to 10.6GHz) and 5.4 ~ 6.0GHz(WiMAX frequency range) trap characteristic of two frequency ranges, it is characterized in that, paster antenna 1 is L by the length of side
4equilateral triangle radiating element and long L
5, wide L
6feeder form, be positioned at the upper surface of medium substrate 2, the axis of paster antenna 1 and the dead in line of medium substrate 2.
The described dual-attenuation triangle ultra broadband paster antenna based on step resonator, it is characterized in that, the length of medium substrate 2 is respectively L
1, L
2, L
3, its relative dielectric constant is 2.2.
The described dual-attenuation triangle ultra broadband paster antenna based on step resonator, it is characterized in that, filter structure is made up of 5.75GHz step resonator 3 and 8.4GHz step resonator 4 two parts, lay respectively at the both sides of the rectangle feeder line of paster antenna 1, two resonator profiles are collapsible, and structure is completely the same, and size linearly, all long with feeder line limit, base is parallel, and apart from feeder line 0.15mm.
The described dual-attenuation triangle ultra broadband paster antenna based on step resonator, it is characterized in that, the structure of two step resonators is by parameter l
1, l
2, l
3, w
1, w
2, w
3, w
4, w
5, w
6, w
7, w
8determine, the large young pathbreaker adjusting these parameters affects the size of resonance frequency (i.e. stopband frequency range).
The described dual-attenuation triangle ultra broadband paster antenna based on step resonator, it is characterized in that, ground plate 5 is positioned at the lower surface of medium substrate 2, and length and width is respectively L
2and L
10, ground plate 5 is positioned at the feeder line side of paster antenna 1, and it is reduced in the part of radiating element (i.e. triangle patch) side.
The described dual-attenuation triangle ultra broadband paster antenna based on step resonator, it is characterized in that, long L is removed by sanction in the side of ground plate 5
8, wide | L
10-L
7| rectangular area, the symmetry axis of this rectangular area overlaps with the symmetry axis of ground plate 5.
Hereinafter will by reference to the accompanying drawings and embodiment summary of the invention is discussed in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dual-attenuation triangle ultra broadband paster antenna based on step resonator of the present invention;
Fig. 2 is the sizing specification figure of the dual-attenuation triangle ultra broadband paster antenna based on step resonator of the present invention;
Fig. 3 is structure, the sizing specification figure of two step resonators;
Symbol description:
1 is paster antenna (comprising radiating element and feeder line), and 2 is medium substrates, and 3 are 3.5GHz step resonators, 4 is 5.6GHz step resonators, and 5 is ground plates.
Embodiment
Because the described dual-attenuation triangle ultra broadband paster antenna based on step resonator works in microwave frequency band, its radiation theory will be analyzed by microwave transmission line theory here.Suppose that the length of side of paster antenna triangle radiating element is half wavelength lambda/2, the thickness of medium substrate is L
3.Like this, triangle radiating element, medium substrate and ground plate can be regarded as the long Low ESR microstrip transmission line for λ/2, and form open circuit in radiating element edge.Again because dielectric substrate thickness is much smaller than wavelength X, thus electric field is substantially unchanged along the component in paster plane normal direction.When only considering principal-mode excitation, electromagenetic wave radiation can be thought to be opened a way by radiating element substantially, and the edge at position causes.The electric field of open end can be decomposed into the horizontal component along paster plane and the vertical component being parallel to plane normal, wherein vertical component is cancelled out each other mutually on the contrary because of phase place, therefore the horizontal component of electric field makes radiating element open end be equivalent to some gaps of cophase detector on infinity plane.Like this, radiating element to external radiation just equivalence become the radiation in gap.
As shown in Figure 2, L
1, L
2, L
3, L
4, L
5, L
6, L
7, L
8, L
9, L
10length be respectively 33mm, 25mm, 1.2mm, 16mm, 16.5mm, 3.6mm, 11mm, 3.8mm, 10.6mm, 16mm.
As shown in Figure 3, in figure, the profile of two resonators of construction profile resonance frequency different from ultra-wideband antenna is completely the same, and concrete size is by hereinafter described setting.
To 3.5GHz step resonator, l
1, l
2, l
3, w
1, w
2, w
3, w
4, w
5, w
6, w
7, w
8length be respectively 0.2mm, 0.2mm, 0.2mm, 5.8mm, 0.2mm, 2.4mm, 1.6mm, 0.2mm, 1.6mm, 0.2mm, 2.2mm; To 5.6GHz step resonator, l
1, l
2, l
3, w
1, w
2, w
3, w
4, w
5, w
6, w
7, w
8length be respectively 0.16mm, 0.16mm, 0.16mm, 4.4mm, 0.16mm, 1.96mm, 1.32mm, 0.16mm, 1.32mm, 0.16mm, 1.7mm.Be different from the traditional design method with trap characteristic ultra-wideband antenna, the slotted eye that described invention no longer has specific function by increasing some on antenna radiation unit reaches the object of required stopband characteristic, but adopt the new method that filtration module combines with feeder, avoiding transformation irradiation structure to cause the basis of more high complexity realizes good filtering performance, there is higher practical value.
The resonance frequency of step resonator can by changing l
1, l
2, l
3, w
1, w
2, w
3, w
4, w
5, w
6, w
7, w
8length adjust, when profile is constant, in proportion linearly increase by four amount values, resonance point will be made to move to low frequency.Visible, if the low-frequency stop band of ultra-wideband antenna will be realized, the requirement to resonator compactedness suitably can be relaxed.[0023] WLAN based on IEEE802.11 standard allows to use 2.4GHZ and 5.8GHZ frequency range in ISM in LAN environment, WiMAX based on IEEE802.16 standard then opens the 3.5GHz frequency range in ISM, for avoiding the mutual interference of ultra-wideband communication system and WLAN frequency range and WiMAX frequency range, the described dual-attenuation triangle ultra broadband paster antenna based on step resonator is respectively at 3.4 ~ 3.7GHz, the trap function of 5.4 ~ 6.0GHz, two frequency ranges prevents the mutual interference with corresponding narrowband systems, this is the present invention's another important application meaning except ultra wideband transmissions characteristic.Certainly also can carry out appropriately to arrange step resonator dimensions according to the actual requirements, to reach the trap effect to different narrowband slice.
Claims (6)
1. based on the dual-attenuation triangle ultra broadband paster antenna of step resonator, it is characterized in that, there is ultra wideband transmissions characteristic (VSWR<2) and 3.4 ~ 3.7GHz(WLAN frequency range of 3.1GHz to 10.6GHz) and 5.4 ~ 6.0GHz(WiMAX frequency range) trap characteristic of two frequency ranges, it is characterized in that, paster antenna 1 is L by the length of side
4equilateral triangle radiating element and long L
5, wide L
6feeder form, be positioned at the upper surface of medium substrate 2, the axis of paster antenna 1 and the dead in line of medium substrate 2.
2. the dual-attenuation triangle ultra broadband paster antenna based on step resonator according to claim 1, it is characterized in that, the length of medium substrate 2 is respectively L
1, L
2, L
3, its relative dielectric constant is 2.2.
3. the dual-attenuation triangle ultra broadband paster antenna based on step resonator according to claim 1, it is characterized in that, filter structure is made up of 5.75GHz step resonator 3 and 8.4GHz step resonator 4 two parts, lay respectively at the both sides of the rectangle feeder line of paster antenna 1, two resonator profiles are collapsible, and structure is completely the same, and size linearly, all long with feeder line limit, base is parallel, and apart from feeder line 0.15mm.
4. the dual-attenuation triangle ultra broadband paster antenna based on step resonator according to claim 1, it is characterized in that, the structure of two step resonators is by parameter l
1, l
2, l
3, w
1, w
2, w
3, w
4, w
5, w
6, w
7, w
8determine, the large young pathbreaker adjusting these parameters affects the size of resonance frequency (i.e. stopband frequency range).
5. the dual-attenuation triangle ultra broadband paster antenna based on step resonator according to claim 1, it is characterized in that, ground plate 5 is positioned at the lower surface of medium substrate 2, and length and width is respectively L
2and L
10, ground plate 5 is positioned at the feeder line side of paster antenna 1, and it is reduced in the part of radiating element (i.e. triangle patch) side.
6. the dual-attenuation triangle ultra broadband paster antenna based on step resonator according to claim 1, it is characterized in that, long L is removed by sanction in the side of ground plate 5
8, wide | L
10-L
7| rectangular area, the symmetry axis of this rectangular area overlaps with the symmetry axis of ground plate 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616904.2A CN104681935A (en) | 2013-11-27 | 2013-11-27 | Double stop-band triangular ultra wideband patch antenna based on phase step resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616904.2A CN104681935A (en) | 2013-11-27 | 2013-11-27 | Double stop-band triangular ultra wideband patch antenna based on phase step resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681935A true CN104681935A (en) | 2015-06-03 |
Family
ID=53316700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310616904.2A Pending CN104681935A (en) | 2013-11-27 | 2013-11-27 | Double stop-band triangular ultra wideband patch antenna based on phase step resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681935A (en) |
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2013
- 2013-11-27 CN CN201310616904.2A patent/CN104681935A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |