CN110098479B - Frequency reconfigurable four-arm helical antenna device - Google Patents
Frequency reconfigurable four-arm helical antenna device Download PDFInfo
- Publication number
- CN110098479B CN110098479B CN201910503847.4A CN201910503847A CN110098479B CN 110098479 B CN110098479 B CN 110098479B CN 201910503847 A CN201910503847 A CN 201910503847A CN 110098479 B CN110098479 B CN 110098479B
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- base
- section
- telescopic rod
- thin section
- antenna
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- 238000010586 diagram Methods 0.000 abstract description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a frequency-reconfigurable four-arm spiral antenna device antenna in the field of wireless communication, which comprises a base serving as a supporting unit and is characterized in that a telescopic rod is vertically arranged in the middle of the base, a rotating disc is arranged above the base in parallel, the telescopic rod penetrates through a reserved hole site of the rotating disc, and the rotating disc is in threaded connection with the top end of the telescopic rod; four spiral arms are uniformly distributed on the base along the circumference, and each spiral arm is spirally wound on the telescopic rod and connected to the bottom surface of the rotary disk; each spiral arm comprises a thick section and a thin section, the thick section is fixedly connected to the base, the thin section is connected to the bottom surface of the rotary disk, the inner cavity of the thick section is a cavity just containing the thin section, the bottom of the thin section is matched in the inner cavity of the thick section, the length of the spiral arm can be changed by rotating the dial, the frequency and the directional diagram of the antenna can be reconstructed, and finally the frequency-reconfigurable four-arm spiral antenna with excellent performance is obtained.
Description
Technical Field
The invention relates to a frequency reconfigurable antenna in the technical field of wireless communication, in particular to a four-arm spiral antenna with a reconfigurable feed channel length.
Background
At present, in the use of circularly polarized wide beam antennas, antenna forms such as microstrip antennas, helical antennas, cross element antennas and the like are mainly adopted. The microstrip antenna has the advantages of simple structure and low profile, the size of the antenna port surface is reduced by adopting a high dielectric constant printed board generally, and the requirement of wide beams is met, but the antenna loss is increased, the efficiency of the antenna is lower, and meanwhile, the wide beam microstrip antenna is easily influenced by the installation environment, so that the antenna pattern is deformed. When the cross element antenna is used as a wide beam antenna, the antenna height is high, a circular polarization network needs to be added, and equipment is relatively complex. When the spiral antenna is used as a wide-beam antenna, the mode adopted is a double-arm spiral antenna or a four-arm spiral antenna, the bandwidth characteristic of the double-arm spiral antenna is good, the antenna height is higher, the height of the four-arm spiral antenna is low, the pattern characteristic is good, beam forming can be carried out according to the requirement, the bandwidth of the antenna is narrow, and the application of the four-arm spiral antenna is limited.
Therefore, it is necessary to study a means for increasing the bandwidth of the quadrifilar helix antenna.
Disclosure of Invention
The invention aims to obtain a four-arm spiral antenna with reconfigurable frequency by combining the four-arm spiral antenna with a mechanical rotating device, so that the bandwidth of the four-arm spiral antenna is widened.
The technical scheme adopted by the invention is as follows:
the frequency reconfigurable four-arm spiral antenna comprises a base serving as a supporting unit, wherein a telescopic rod is vertically arranged in the middle of the base, a rotating disc is arranged above the base in parallel, the telescopic rod penetrates through a reserved hole site of the rotating disc, and the rotating disc is in threaded connection with the top end of the telescopic rod;
four spiral arms are uniformly distributed on the base along the circumference, and each spiral arm is spirally wound on the telescopic rod and connected to the bottom surface of the rotary disk;
each spiral arm comprises a thick section and a thin section, the thick section is fixedly connected to the base, the thin section is connected to the bottom surface of the rotary disk, the inner cavity of the thick section is a cavity just for accommodating the thin section, and the bottom of the thin section is matched in the inner cavity of the thick section.
Furthermore, the thick section and the thin section are hollow cylinders, and the cavity of the thick section is connected with the cavity of the thin section to form a feed cavity with variable path length.
Further, the bottom port of the thick section is communicated with the corresponding opening of the base, and the top port of the thin section is communicated with the corresponding opening of the rotating disk.
Further, a pointer is fixed at the right angle at the top end of the telescopic rod, the pointer stretches out in parallel, the pointer is positioned above the rotating disk, and scales are carved on the rotating disk corresponding to the pointer.
Further, gaps for weight reduction are symmetrically formed in the rotating disc.
Further, the telescopic rod consists of a lower rod and an upper rod, wherein the upper rod is coaxially and slidably arranged in the lower rod, and the lower rod slides up and down along the inner cavity of the upper rod.
Compared with the traditional helical antenna, the invention has the advantage of wide bandwidth:
the broadband coverage and the multi-frequency coverage of the antenna bandwidth are realized through the height change of the height adjusting rod, and the application occasion that a single antenna can cover the multi-frequency point communication system is realized.
The frequency range can be adaptively adjusted by changing the length of the inner cavity of the spiral arm, and the structure is simple and efficient.
Drawings
Fig. 1 is a side view of a frequency reconfigurable quadrifilar helix antenna.
Fig. 2 is a top view of a frequency reconfigurable quadrifilar helix antenna.
Base 1, thick section 2, thin section 3, rotary disk 4, upper pole 5, lower pole 6.
Detailed Description
The invention is further illustrated in fig. 1 and 2:
the utility model provides a frequency reconfigurable four-arm helical antenna, includes base 1 as supporting element, is located the base centre and has set up the telescopic link perpendicularly, the telescopic link constitute by lower pole 6 and upper pole 5, the upper pole coaxial slip fit in the lower pole, the lower pole slides from top to bottom along the inner chamber of upper pole. A rotary disc 4 is arranged above the base in parallel, the telescopic rod penetrates through the reserved hole site of the rotary disc, and the rotary disc is in threaded connection with the top end of the telescopic rod; the method comprises the steps of carrying out a first treatment on the surface of the
As shown in fig. 1, four spiral arms are uniformly distributed on the base along the circumference, and each spiral arm is spirally connected to the bottom surface of the rotary disk around the telescopic rod; each spiral arm comprises a thick section 2 and a thin section 3, the thick section is fixedly connected to the base, the thin section is connected to the bottom surface of the rotary disk, the inner cavity of the thick section is a cavity just containing the thin section, the bottom of the thin section is matched in the inner cavity of the thick section, the thick section and the thin section are hollow cylinders, and the cavity of the thick section is connected with the cavity of the thin section to form a feed cavity with variable path length.
In order to ensure good communication performance of the product, the bottom port of the thick section is communicated with the corresponding opening of the base, and the top port of the thin section is communicated with the corresponding opening of the rotating disk.
In order to facilitate the identification of the frequency of the adjusted position of the operator, a pointer is fixed at the right angle at the top end of the telescopic rod, the pointer extends out in parallel, the pointer is positioned above the rotating disk, scales are carved on the rotating disk corresponding to the pointer, and notches for weight reduction are symmetrically formed on the rotating disk.
The invention briefly works on the principle:
the working principle of the invention is as follows: the frequency reconfigurable four-arm spiral antenna consists of four telescopic spiral arms, a rotary dial and a height adjusting rod. Each spiral arm of the four spiral arms consists of a thick section and a thin section spiral arm with different thickness, and the thin section can be inserted into the thick section part and can slide; the middle of four spirals is the altitude mixture control pole, the altitude mixture control pole divide into upper and lower two sections, the lower pole cavity takes the recess, the upper pole takes the arch to insert in the little pole, the lower pole top penetrates rotatory calibrated scale centre bore, scalable spiral arm thick section is fixed with antenna feed network, thin section and rotary disk are fixed, through the rotary disk collocation height-adjusting pole that goes up and down, can change the length of spiral arm, realize the frequency and the pattern reconfigurability of antenna, different spiral arm length is corresponding with the frequency identification, but through the resonant characteristic of change antenna elevating gear steerable antenna, finally obtain a kind of fine performance's frequency reconfigurability four arm spiral antenna.
By rotating the dial, the length of the spiral arm can be changed, so that the frequency and the directional diagram of the antenna can be reconstructed, and the different spiral arm lengths correspond to the frequency identification; the antenna feed network is a one-to-four equal power split-phase shift network.
Claims (4)
1. A frequency reconfigurable quadrifilar helix antenna comprising a base as a support unit, characterized in that: a telescopic rod is vertically arranged in the middle of the base, a rotary disk is arranged above the base in parallel, the telescopic rod penetrates through a reserved hole site of the rotary disk, and the rotary disk is in threaded connection with the top end of the telescopic rod;
four spiral arms are uniformly distributed on the base along the circumference, and each spiral arm is spirally wound on the telescopic rod and connected to the bottom surface of the rotary disk;
each spiral arm comprises a thick section and a thin section, the thick section is fixedly connected on the base, the thin section is connected to the bottom surface of the rotating disk,
the inner cavity of the thick section is a cavity just accommodating the thin section, and the bottom of the thin section is matched in the inner cavity of the thick section;
the thick section and the thin section are hollow cylinders, and the cavity of the thick section is connected with the cavity of the thin section to form a feed cavity with variable path length; the bottom port of the thick section is communicated with the corresponding opening of the base, and the top port of the thin section is communicated with the corresponding opening of the rotating disk.
2. A frequency reconfigurable quadrifilar helix antenna as claimed in claim 1 wherein: the right angle at the top of the telescopic rod is fixed with a pointer which extends out in parallel, the pointer is positioned above the rotating disk, and scales are carved on the rotating disk corresponding to the pointer.
3. A frequency reconfigurable quadrifilar helix antenna as claimed in claim 1 wherein: gaps for reducing weight are symmetrically arranged on the rotating disc.
4. A frequency reconfigurable quadrifilar helix antenna as claimed in claim 1 wherein: the telescopic rod consists of a lower rod and an upper rod, wherein the upper rod is coaxially and slidably assembled in the lower rod, and the lower rod slides up and down along the inner cavity of the upper rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503847.4A CN110098479B (en) | 2019-06-11 | 2019-06-11 | Frequency reconfigurable four-arm helical antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910503847.4A CN110098479B (en) | 2019-06-11 | 2019-06-11 | Frequency reconfigurable four-arm helical antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110098479A CN110098479A (en) | 2019-08-06 |
| CN110098479B true CN110098479B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910503847.4A Active CN110098479B (en) | 2019-06-11 | 2019-06-11 | Frequency reconfigurable four-arm helical antenna device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111106424A (en) * | 2019-12-06 | 2020-05-05 | 国网江苏省电力有限公司检修分公司 | Adjustable spiral ground penetrating radar antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154184A (en) * | 1998-06-30 | 2000-11-28 | Mitsubishi Denki Kabushiki Kaisha | Antenna apparatus for portable phones |
| CN1482831A (en) * | 2002-07-04 | 2004-03-17 | Multi-band helical antenna on multilayer substrate | |
| US9742058B1 (en) * | 2015-08-06 | 2017-08-22 | Gregory A. O'Neill, Jr. | Deployable quadrifilar helical antenna |
| US10020586B1 (en) * | 2017-07-07 | 2018-07-10 | The Florida International University Board Of Trustees | Segmented helical antenna with reconfigurable polarization |
| CN109599653A (en) * | 2019-01-25 | 2019-04-09 | 西安星网天线技术有限公司 | A kind of portable circular polarized antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10181650B2 (en) * | 2017-01-13 | 2019-01-15 | The Florida International University Board Of Trustees | Origami-folded antennas and methods for making the same |
| CN209730166U (en) * | 2019-06-11 | 2019-12-03 | 中国电子科技集团公司第五十四研究所 | Frequency reconfigurable quadrifilar helix antenna device |
-
2019
- 2019-06-11 CN CN201910503847.4A patent/CN110098479B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154184A (en) * | 1998-06-30 | 2000-11-28 | Mitsubishi Denki Kabushiki Kaisha | Antenna apparatus for portable phones |
| CN1482831A (en) * | 2002-07-04 | 2004-03-17 | Multi-band helical antenna on multilayer substrate | |
| US9742058B1 (en) * | 2015-08-06 | 2017-08-22 | Gregory A. O'Neill, Jr. | Deployable quadrifilar helical antenna |
| US10020586B1 (en) * | 2017-07-07 | 2018-07-10 | The Florida International University Board Of Trustees | Segmented helical antenna with reconfigurable polarization |
| CN109599653A (en) * | 2019-01-25 | 2019-04-09 | 西安星网天线技术有限公司 | A kind of portable circular polarized antenna |
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| CN110098479A (en) | 2019-08-06 |
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