CN203150699U - Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect - Google Patents
Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect Download PDFInfo
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- CN203150699U CN203150699U CN 201220633281 CN201220633281U CN203150699U CN 203150699 U CN203150699 U CN 203150699U CN 201220633281 CN201220633281 CN 201220633281 CN 201220633281 U CN201220633281 U CN 201220633281U CN 203150699 U CN203150699 U CN 203150699U
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Abstract
The utility model relates to a combined spiral-wire rectangular-frame patch antenna based on a left-handed material effect. The combined spiral-wire rectangular-frame patch antenna comprises a dielectric substrate, a metallic grounding plate, a rectangular-frame metal patch antenna, a microstrip feeder line, 6*6 spiral metal wires and four metal strips. The rectangular-frame metal patch antenna is fixed on the forward surface of the dielectric substrate. The dielectric constant of the substrate is 10. The antenna is fed through the microstrip feeder line. The 6*6 spiral metal wires are periodically arranged in the rectangular-frame metal patch antenna, and the four metal strips are inlaid among the spiral metal wires. The metallic grounding plate is adhered to the reverse surface of the dielectric substrate. According to the combined spiral-wire rectangular-frame patch antenna based on the left-handed material effect, nearby a certain frequency. The degree of the localization of electromagnetic energy is obviously increased due to a combined spiral-wire structure, so that the gain of the antenna is obviously increased. The return loss is lower, and the performance of the antenna is better improved. Thus, the combined spiral-wire rectangular-frame patch antenna can be applied to the fields of mobile communications, satellite communications, aerospace and the like.
Description
Technical field
The utility model belongs to communication technical field, is specifically related to a kind of compound paster antenna based on the left-handed materials effect.
Background technology
Left-handed materials (LHM) is a kind of artificial electromagnetic medium of novel periodic structure, its dielectric constant and magnetic permeability are simultaneously for negative, therefore, when electromagnetic wave is propagated in this two negative dielectric materials, electric vector, magnetic vector and wave vector three that ripple is propagated satisfy left hand rule, so be called as left-handed materials (or claiming negative refractive index material).As far back as nineteen sixty-eight, V. G. Veselageo has just studied the unusual electromagnet phenomenon among the LHM theoretically.2000, people such as Smith found can obtain the dielectric constant of bearing and the magnetic permeability of bearing simultaneously with the complex media of special micro-structural periodic arrangement in microwave band first, thereby from having verified that experimentally this material can make by manual method.Left-handed materials has a lot of peculiar optics and electromagnetic properties, as contrary Doppler effect, contrary Cherenkov radiation, abnormal refraction phenomenon etc.These characteristics have represented left-handed materials and have had potential significant application value at light and electromagnetic wave field.
The utility model finds that by the research to compound helix rectangle frame antenna system this structure can reduce the return loss of antenna preferably, increases the gain of antenna.Analyze theoretically, we can be interpreted as: in particular frequency range, resonances generate electromagnetic waves, the real part that dielectric constant and magnetic permeability occur is negative value simultaneously, its refractive index also is to be negative value, form the amplification of electromagnetic " tunnel " effect and evanescent wave, thus, strengthen the electromagnetic wave strength of resonance greatly, made the compound helix structure of this structure be significantly improved to the localization degree of electromagnetic energy, caused antenna gain obviously to increase, and show as lower return loss, thus, increase antenna and be coupled to the electromagenetic wave radiation power in space, thereby improved paster antenna gain and signal to noise ratio.
The utility model content
The utility model mainly provides a kind of compound paster antenna based on the left-handed materials effect, in certain frequency range, has strengthened the electromagnetic wave strength of resonance, has improved the localization degree of electromagnetic energy, thereby reduces the return loss of antenna, has increased gain.
Realize the technical solution of the utility model: a kind of compound helix rectangle frame paster antenna based on the left-handed materials effect, comprise medium substrate 1, metal ground plate 2, compound paster antenna 5, helical wire 6 and bonding jumper 7, compound paster antenna 5 is made up of rectangle frame metal patch antenna 3 and microstrip feed line 4, compound paster antenna 5 is fixed on the front of medium substrate 1, be provided with helical wire 6 and the bonding jumper 7 of periodic arrangement in the front of medium substrate, the reverse side metal clad ground plate 2 of medium substrate 1, microstrip feed line 4 is used for rectangle frame metal patch antenna 3 feeds.
The medium substrate 1 positive circuit board lithographic technique that adopts, difference etching rectangle frame metal patch antenna 3, microstrip feed line 4, helical wire 6, bonding jumper 7, helical wire 6 periodic arrangement are in rectangle frame metal patch antenna 3,6 * 6 helical wire 6 of in rectangle frame metal patch antenna 3, on average arranging, and embed a bonding jumper 76 of helical wire every two row, embed 4 bonding jumpers 7 altogether, microstrip feed line 4 links to each other with rectangle frame metal patch antenna 3, is used for as rectangle frame
The electric wave signal feed-in source of metal patch antenna 3.
The size of medium substrate 1 is: long is 360mm, wide is 360mm, height is 8mm, be Hl (360mm) * Ll (360mm) * Dl (8mm), the relative dielectric constant of medium substrate is 10, at the positive rectangle frame metal patch antenna 3 that width D 2=4mm is fixedly arranged of medium substrate, rectangle frame metal patch antenna 3 housing length of side L2=304mm, inside casing length of side L3=296mm, housing is apart from dielectric-slab edge D6=28mm, the live width D7=1.9mm of the helical wire (6) of 6 * 6 periodic arrangement that rectangle frame metal patch antenna 3 is embedded in, adjacent lines interval D 8=1.9mm, minimum diameter R1=1.9mm, maximum outside diameter R2=19mm, R3=17.1mm, the space D 4=D5=44.8mm at adjacent helical wire center, the bonding jumper 7 of 6 embeddings of described helical wire, bonding jumper 7 long H4=260mm, wide L4=3mm, the space D 3=86.6mm of bonding jumper 7, reverse side metal clad ground plate at substrate, be of a size of: the long 360mm of being, wide is 360mm, i.e. Hl (360mm) * Ll (360mm), the length of microstrip feed line 4 is 28mm, and wide is L5=4.7mm.The extrinsic motivated source links to each other with microstrip feed line 4 by plain conductor one end, and the other end links to each other with ground plate 2, and driving source adopts the Gaussian discrete source, gives rectangle frame metal patch antenna 3 feeds by microstrip feed line 4.
In order to verify validity of the present utility model, utilize the XFDTD of simulation software to test above-mentioned compound helix rectangle frame patch-antenna structure based on the left-handed materials effect, this software is the all-wave 3 D electromagnetic simulation software based on electromagnetism numerical computation method FDTD (Finite-Difference Time-Domain Method) of U.S. REMCOM company exploitation, this software emulation result reliability height.By the emulation testing of this software, can obtain the performance parameter value of antenna performance correspondence, as return loss (s11 is also referred to as reflection coefficient), transmission coefficient (s21), voltage standing wave ratio (VSWR) and gain (Gain) etc.By analyzing these numerical value, can compare the quality of antenna performance.
The utility model is to have added left-handed materials on the basis of common paster antenna to be combined to form compound paster antenna.Utilize the characteristic of left-handed materials, the electromagnetic wave resonances that produce at 4.18GHZ frequency place, the real part that dielectric constant and magnetic permeability occur is negative value simultaneously, its refractive index also is negative value, this effect has been strengthened the electromagnetic wave strength of resonance greatly, its feasible so structure is significantly improved to the localization degree of electromagnetic energy, and have a higher gain, show as lower return loss, can improve the performance of antenna well, make this paster antenna can be applied better in various fields such as mobile communication, satellite communication and Aero-Space.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is that the utility model is based on the compound paster antenna Facad structure schematic diagram of left-handed materials effect;
The 1-medium substrate; The 2-metal ground plate; 3-rectangle frame metal patch antenna; The 4-microstrip feed line; The compound paster antenna of 5-; The 6-helical wire; The 7-bonding jumper.
Fig. 2 is that the utility model is based on the compound paster antenna helix Facad structure schematic diagram of left-handed materials effect;
Fig. 3 is that the utility model is based on the compound paster antenna return loss schematic diagram of left-handed materials effect;
Fig. 4 is that the utility model is based on the compound paster antenna gain schematic diagram of left-handed materials effect;
Fig. 5 is that the utility model is based on the compound paster antenna standing-wave ratio schematic diagram of left-handed materials effect;
Fig. 6 is that the utility model is based on compound paster antenna effective dielectric constant and the effective permeability of left-handed materials effect.
Embodiment
Adopt the circuit board lithographic technique, in the compound helix rectangle frame patch-antenna structure based on the left-handed materials effect as shown in Figure 1, at the medium substrate 1 positive metal patch of etching rectangle frame respectively antenna 3, microstrip feed line 4, at medium substrate 1 reverse side metal clad ground plate 2.Microstrip feed line 4 is connecting rectangle frame metal patch antenna 3 as the electric wave signal feed-in source of rectangle frame metal patch antenna 3, etches helical wire 6 and 4 bonding jumpers 7 of 6 * 6 on the medium substrate in the middle of the rectangle frame metal patch antenna 3.
The utility model is a kind of compound paster antenna based on the left-handed materials effect, as shown in Figure 1.The size of the medium substrate 1 of this compound helix rectangle frame paster antenna based on the left-handed materials effect is Hl (360mm) * Ll (360mm) * Dl (8mm), the relative dielectric constant of medium substrate 1 is 10, at the medium substrate 1 positive rectangle frame metal patch antenna 3 that width D 2=4mm is fixedly arranged, rectangle frame metal patch antenna 3 housing length of side L2=304mm, inside casing length of side L3=296mm, housing is apart from medium substrate 1 edge D6=28mm.Rectangle frame metal patch antenna 3 is embedded in 6 * 6 periodic arrangement helical wire 6, helical wire 6(Fig. 2) live width D7=1.9mm, adjacent lines interval D 8=1.9mm, minimum diameter R1=1.9mm, maximum outside diameter R2=19mm, R3=17.1mm, the space D 4=D5=44.8mm at adjacent helical wire center.6 of helical wire embed 4 bonding jumpers 7, bonding jumper 7 long H4=260mm, and wide L4=3mm, the space D 3=86.6mm of bonding jumper 7 at the reverse side metal clad ground plate 2 of medium substrate 1, is of a size of Hl (360mm) * Ll (360mm).Rectangle frame metal patch antenna 3 is 28mm with length, and wide is the compound paster antenna 5 of microstrip feed line 4 continuous formations of L5=4.7mm.Driving source adopts the Gaussian discrete source, gives rectangle frame metal patch antenna 3 feeds by microstrip feed line 4.
With XFDTD Electromagnetic Simulation software this compound helix rectangle frame paster antenna is carried out emulation experiment.Experiment obtains as shown in Figure 3 return loss s11 characteristic, and s11 is about-31.3dB in the minimum echo loss of frequency 4.18GHZ place, illustrates composite structuredly can further reduce return loss.
As shown in Figure 4, obtain gain characteristic, after adding helical wire 6 pasters and bonding jumper 7, this compound helix rectangle frame paster antenna forward gain maximum based on the left-handed materials effect is about 11.33dB, and the composite structured gain that can bigger raising paster antenna that adds helical wire 6 and bonding jumper 7 is described in compound paster antenna 5.
As shown in Figure 5, obtain voltage standing wave ratio VSWR characteristic, the minimum voltage standing-wave ratio is 1.056 at frequency 4.18GHZ place, very close to ideal value 1.
The prerequisite that negative permittivity and negative magnetoconductivity appear in same structure simultaneously is that it magnetic resonance and electric resonance occur simultaneously a certain frequency range planted agent.This compound helix rectangle frame paster antenna based on the left-handed materials effect in the utility model at medium substrate 1 upper surface metal clad bar 7, has improved the capacitance of system, produces stronger electric resonance; In addition, in medium substrate 1 upper surface covering cycle arrangement helical wire 6, improve the inductance value of system, thereby constitute stronger magnetic resonance.Owing to the coincidence of resonance minus zone forms two negative region.
For verifying the correctness of designed structure, obtained the scattering parameter of this compound helix rectangle frame paster antenna by emulation, i.e. s21 and s11 data that this compound helix rectangle frame paster antenna emulation is obtained, draw this composite structured effective dielectric constant and effective permeability electromagnetic parameter by NRW transmission/bounce technique, Fig. 6 has provided effective permeability, the effective dielectric constant that the parameter that obtains according to emulation is extracted, and refractive index n.
Simulation result is illustrated intuitively by Fig. 6: near f=4.18GHz frequency place antenna resonance point, effective permeability and effective dielectric constant occurring all is negative value, be respectively=-3.4 and=-9.6, show: by ordinary rectangular frame paster antenna and helical wire, bonding jumper are made up, can form new compound rectangle frame antenna system, it all is negative value that this system can make magnetic permeability and dielectric constant, and refractive index is negative value also, has left-handed materials character.
The utility model adopts the circuit board lithographic technique to make antenna.Concrete structure of the present utility model is of a size of: medium substrate 1 material of antenna is Taconic CER-10 material (relative dielectric constant is 10).The size of medium substrate 1 is 360mm * 360mm * 8mm, and in medium substrate 1 front width being arranged fixedly is the rectangle frame metal patch antenna 3 of 4mm, the long L2=304mm of outer rectangular frame edge, and inside casing length of side L3=296mm, housing is apart from medium substrate 1 edge 28mm.Rectangle frame metal patch antenna 3 is embedded in 6 * 6 periodic arrangement wire spirals 6, is of a size of R1=D7=D8=1.9mm, R2=19mm, R3=17.1mm, space D 4=D5=44.8mm.6 of wire spirals embed 4 bonding jumpers 7, bonding jumper 7 long H4=260mm, and wide L4=3mm, space D 3=86.6mm between the bonding jumper 7 posts the metal ground plate 2 of 360mm * 360mm at the reverse side of medium substrate 1.Rectangle frame metal patch antenna 3 is 28mm with length, and wide is the compound paster antenna 5 of microstrip feed line 4 continuous formations of L5=4.7mm.Give rectangle frame metal patch antenna 3 feeds by microstrip feed line, the centre frequency of this compound helix rectangle frame paster antenna based on the left-handed materials effect is about 4.18GHZ, so far finishes this based on the making of the compound helix rectangle frame paster antenna of left-handed materials effect.
Claims (3)
1. compound helix rectangle frame paster antenna based on the left-handed materials effect, it is characterized in that: comprise medium substrate (1), metal ground plate (2), compound paster antenna (5), helical wire (6), bonding jumper (7), compound paster antenna (5) is made up of rectangle frame metal patch antenna (3) and microstrip feed line (4), compound paster antenna (5) is fixed on the front of medium substrate (1), be provided with helical wire (6) and the bonding jumper (7) of periodic arrangement in the front of medium substrate, the reverse side metal clad ground plate (2) of medium substrate (1), microstrip feed line (4) is used for rectangle frame metal patch antenna (3) feed.
2. the compound helix rectangle frame paster antenna based on the left-handed materials effect according to claim 1, it is characterized in that, the positive circuit board lithographic technique that adopts of medium substrate (1), difference etching rectangle frame metal patch antenna (3), microstrip feed line (4), helical wire (6), bonding jumper (7), helical wire (6) periodic arrangement is in rectangle frame metal patch antenna (3), 6 * 6 helical wire (6) of in rectangle frame metal patch antenna (3), on average arranging, and between helical wire (6), embed a bonding jumper (7) every two row, embed 4 bonding jumpers (7) altogether, microstrip feed line (4) links to each other with rectangle frame metal patch antenna (3), is used for the electric wave signal feed-in source as rectangle frame metal patch antenna (3).
3. the compound helix rectangle frame paster antenna based on the left-handed materials effect according to claim 2, it is characterized in that: the size of medium substrate (1) is: long is 360mm, wide is 360mm, height is 8mm, be Hl (360mm) * Ll (360mm) * Dl (8mm), the relative dielectric constant of medium substrate is 10, at the positive rectangle frame metal patch antenna (3) that width D 2=4mm is fixedly arranged of medium substrate, rectangle frame metal patch antenna (3) housing length of side L2=304mm, inside casing length of side L3=296mm, housing is apart from medium substrate (1) edge D6=28mm, the live width D7=1.9mm of the helical wire (6) of 6 * 6 periodic arrangement that rectangle frame metal patch antenna (3) is embedded in, adjacent lines interval D 8=1.9mm, minimum diameter R1=1.9mm, maximum outside diameter R2=19mm, R3=17.1mm, adjacent helical wire center distance D4=D5=44.8mm, the bonding jumper (7) that embeds between described helical wire (6), the long H4=260mm of bonding jumper (7), wide L4=3mm, the space D 3=86.6mm of bonding jumper (7), reverse side metal clad ground plate at substrate, be of a size of: the long 360mm of being, wide is 360mm, be Hl (360mm) * Ll (360mm), the length of microstrip feed line (4) is 28mm, and wide is L5=4.7mm, the extrinsic motivated source links to each other with microstrip feed line (4) by plain conductor one end, one end links to each other with ground plate (2), and driving source adopts the Gaussian discrete source, gives rectangle frame metal patch antenna (3) feed by microstrip feed line (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633281 CN203150699U (en) | 2012-11-26 | 2012-11-26 | Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220633281 CN203150699U (en) | 2012-11-26 | 2012-11-26 | Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect |
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| CN203150699U true CN203150699U (en) | 2013-08-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938500A (en) * | 2012-11-26 | 2013-02-20 | 江苏大学 | Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect |
| CN113036412A (en) * | 2021-03-05 | 2021-06-25 | 成都中科微信息技术研究院有限公司 | Wireless energy transmission system with improved transmission efficiency |
-
2012
- 2012-11-26 CN CN 201220633281 patent/CN203150699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938500A (en) * | 2012-11-26 | 2013-02-20 | 江苏大学 | Combined spiral-wire rectangular-frame patch antenna based on left-handed material effect |
| CN113036412A (en) * | 2021-03-05 | 2021-06-25 | 成都中科微信息技术研究院有限公司 | Wireless energy transmission system with improved transmission efficiency |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20131126 |