CN109599653A - A kind of portable circular polarized antenna - Google Patents
A kind of portable circular polarized antenna Download PDFInfo
- Publication number
- CN109599653A CN109599653A CN201910071972.2A CN201910071972A CN109599653A CN 109599653 A CN109599653 A CN 109599653A CN 201910071972 A CN201910071972 A CN 201910071972A CN 109599653 A CN109599653 A CN 109599653A
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- China
- Prior art keywords
- antenna
- spiral
- fixed link
- circular polarized
- polarized antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000010363 phase shift Effects 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 230000009466 transformation Effects 0.000 claims abstract description 5
- 230000010287 polarization Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- 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
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to a kind of portable circular polarized antennas, include mainly the antenna base component successively laid from bottom to top, phase shift feeding network component, radiator and upper carriage；Radiator includes fixing piece under the fixed link and spiral being fixed on helix pedestal, spiral arm and spiral upper fixing element, the spiral arm slides up and down the radiation diameter of transformation uhf band antenna by upper carriage along fixed link, and then adjust beam angle and gain size, height double frequency mode may be implemented in the present invention, and it slides up and down position by changing short helix and long spire line and can realize the transformation of helix radial radiation diameter, it can get different beam angle and gain pattern, but also it is able to satisfy different space requirements, realize that radiator is shrinkable, it is easy to carry.
Description
Technical field
The invention belongs to antenna communication technical fields, and in particular to it is a kind of work in uhf band and S frequency range it is portable just
Take formula circular polarized antenna.
Background technique
Antenna is transmitting and an important wireless device for receiving electromagnetic wave, and basic function is will be in free space
Electric signal in electromagnetic signal and transmission line is mutually converted, and realizes propagation of the wireless signal between any two points.
With the development of science and technology, the various devices in electronic communication system require to minimize, and antenna is as communication
Indispensable component is also required to realize miniaturization and portability in system, to lightweight and portable in volume, portability, highly sensitive high stable
The demand of the single Portable device of property is more urgent.
In mobile satellite communication earth station and satellite navigation, it is desirable that terminal antenna has broad beam, circular polarisation special
Property, to keep satellite in the coverage area of antenna beam during exercise.Meanwhile terminal antenna must have broadband or double frequency
Working characteristics, so that sending and receiving share common antenna.Four-arm spiral antenna has excellent circular polarization characteristics and broad beam characteristic,
Therefore it is widely used in mobile satellite communication.Common four-arm spiral antenna is resonant antenna, narrower bandwidth, it is difficult to meet movement
The requirement of satellite communication antena broadband or dual band operation, so needing to study wideband or double-frequency quadrifilar helix antenna.At present
Four-arm spiral antenna is broadly divided into two kinds, and one is directlying adopt, plain conductor coiling is helically shaped, and another kind is printing
Four-arm spiral antenna, but the antenna of both modes, radiation arm include low frequency spiral arm and frequency spiral arm, low frequency spiral shell
Spiral arm and frequency spiral arm are connected to the network by the mutual equidistantly distributed of multiple spiral arms, radiation arm and phase shift combining, are located at medium
The same side of plate, it is oversized needed for the mode of this spiral arm in uhf band although being able to achieve two-frequency operation, no
It is easy to carry, and it is difficult to realize multimode manner work.
Summary of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, a kind of portable entelechy is proposed
Change antenna, it is intended to it solves the integrated design of UHF and S band antenna and uhf band satellite communication antena occupied space is larger, it is inconvenient
In carry the problems such as.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of portable circular polarized antenna comprising the antenna base component (1) successively laid from bottom to top, phase shift feed
Networking component (2), radiator (3) and upper carriage (4)；
The radiator (3) includes fixing piece under fixed link (42) and the spiral being fixed on helix pedestal (31)
(32), spiral arm (33) and spiral upper fixing element (34), spiral arm (33) helically coiling is on fixed link (42) and both ends
It is connect respectively by fixing piece (32) under spiral with helix pedestal (31), by spiral upper fixing element (34) and upper carriage
(4) it connects, the spiral arm (33) slides up and down transformation uhf band antenna along fixed link (42) by upper carriage (4)
Diameter is radiated, and then adjusts beam angle and gain size.
It further limits, the spiral arm (33) includes the connected short helix (331) and long spire line in four groups of bottoms
(332), the bottom end of the short helix (331) and long spire line (332) is connected by conducting wire and phase shift feeding network component (2)
It connects, the short helix (331) and long spire line (332) are wound in the same direction on fixed link (42).
It further limits, the spiral arm (33) is multiple groups, according to required polarization mode with left-hand screw or right-hand screw
Mode be wound on fixed link (42).
It further limiting, the phase shift feeding network component (2) includes adapter lead (21) and phase shift power-devided circuit (22),
The adapter lead (21) connect with antenna base component (1), and the other end of the adapter lead (21) passes through phase shift function point electricity
Road (22) is connect with spiral arm (33).
It further limits, each output port amplitude of the phase shift power-devided circuit (22) is equal and phase successively lags
90 °, form circularly polarised wave.
It further limits, four output ends of the phase shift power-devided circuit (22) and spiral arm (33) correspond.
It further limits, the upper carriage (4) includes upper sliding sleeve (41) and upper limit cap (43), the top
Portion's limited cap (43) is arranged in the end of fixed link (42), and the upper sliding sleeve (41) is sleeved on fixed link (42) and can edge
Fixed link (42) slides up and down, and the upper end of the spiral arm (33) is connect with upper sliding sleeve (41).
It further limits, the upper carriage (4) further includes elastic positioning device (44), the side of the fixed link (42)
Detent slot is offered on wall, the elastic positioning device (44) and the clamping of detent slot position.
A kind of multimode circular polarisation combined antenna comprising above-mentioned portable circular polarized antenna and S band antenna (5),
The portable circular polarized antenna works in uhf band, and the top of portable circular polarized antenna is arranged in the S band antenna (5)
Portion.
It further limits, the fixed link (42) that the feeder line of the S band antenna (5) passes through portable circular polarized antenna is internal
It is fed.
Compared with the prior art, the invention has the following advantages:
(1) present invention realizes height double frequency mode using the short helix and long spire line that are wound in fixed link, and
It slides up and down position by changing short helix and long spire line and can realize the transformation of helix radial radiation diameter, can get not
Same beam angle and gain pattern, but also it is able to satisfy different space requirements, realize that radiator is shrinkable, carrying side
Just.
(2) the output port amplitude of phase shift feeding network component of the present invention is equal, and phase successively lags 90 °, forms entelechy
The radiofrequency signal of change has multi-frequency polarized, width to can form the consistent radiation signal of orthogonal and coverage area in space
The characteristic of wave beam and high-gain.
(3) uhf band and S band antenna are used integrated design by the present invention, and S band antenna (5) is fixed on uhf band
The top of antenna, feeder line passes through to be fed inside fixed link (42), can be reduced mutual between S frequency range and uhf band antenna
Coupling, so that the antenna is with good performance in multiple modes.
Detailed description of the invention
Fig. 1 is the overall structure figure of the portable circular polarized antenna of the present invention；
Fig. 2 is the structural schematic diagram of circular polarisation feeding pack in Fig. 1；
Fig. 3 is the structure expanded schematic diagram of radiator and upper carriage in Fig. 1.
Fig. 4 is the rounding state figure of Fig. 1.
Fig. 5 is the overall structure figure of multimode circular polarisation combined antenna.
Fig. 6 is the schematic diagram of the S band antenna 5 in Fig. 5.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, present invention is further described in detail.
Referring to Fig.1, portable circular polarized antenna of the invention, be disposed with from bottom to top antenna base component (1),
Phase shift feeding network component (2), radiator (3), upper carriage (4),
Wherein antenna base component (1) includes antenna base (11) and sub-miniature A connector (12), antenna base (11) be for
The end of electronic communication equipment connection.Sub-miniature A connector (12) is accommodated in antenna base (11) inside, sets for communicating with external electrical
Standby signal transmission.
Phase shift feeding network component (2), as shown in Fig. 2, including adapter lead (21) and phase shift power-devided circuit (22), the shifting
The pcb board of phase power-devided circuit (22) uses the dielectric-slab of permittivity ε=2.65, a length of 70mm, width 35mm, and plate thickness 1mm leads to
It crosses screw thread to be embedded in the cover of antenna bottom, adapter lead (21) and antenna base component of the input terminal by impedance for 50 ohm
(1) sub-miniature A connector (12) is connected, and output end is four ports, respectively output port 221, port 222, port 223,
Port 224, because the condition that four-arm spiral antenna generates circular polarisation is that four port phases successively decrease rotation direction, the phase shift function point
There are three 3db electric bridges in circuit (22), so that four ports successively have 90 ° of phase taper, while four port amplitudes are
Equal.
Radiator (3), as shown in structure chart 3, including fixing piece (32), spiral arm under helix pedestal (31), spiral
(33), spiral upper fixing element (34), the embodiment share four groups of helixes (33), select four groups of spiral arms (33) convenient for generating circle
Polarization, and the bandwidth characteristic for meeting actual use can be obtained, to match practical communication system, which will generate dextrorotation circle
Polarization, four-arm spiral antenna generate right-handed circular polarization another necessary condition be left-handed rising helix, therefore four groups of spirals
Arm (33) is wound on fixed link (42) around to the form for being all made of left-handed rising, and every group of spiral arm (33) is by two bottom phases
Short helix (331) even and long spire line (332) composition, short 331 length of spiral arm are 384mmmm, 332 length of long spire arm
For 428mmmm, iron wire coiling in the same direction is both used, maximum gauge differs 20mm, and the program not only greatly reduces antenna
Volume, and high reliablity, production easy to process.Fixing piece (32) and spiral upper fixing element (34) are adopted under the spiral of the embodiment
It is the locking devices such as positioning pin, four that the lower end of every group of helix (33) is separately fixed at helix pedestal (31) connect
On mouth, then it is respectively connected with by conducting wire and four output ports of phase shift power-devided circuit (22), helix upper end is then fixed
On upper sliding sleeve (41), the upper sliding sleeve (41) uses metal material, so spiral arm (33) upper end is in short circuit
State.
Upper carriage (4) includes upper sliding sleeve (41), fixed link (42), upper limit cap (43) and flexibly positioned dress
Set (44).In the present embodiment, since radiator (3) upper end and upper sliding sleeve (41) are fixed, by sliding upper sliding sleeve
(41), radiator (3) can be drawn, the maximum radius and height of radiator are changed, to obtain different beam angle and increasing
Beneficial directional diagram, fixed link (42) have several detent slots, and elastic positioning device (44) is stuck in the detent of fixed link (42) by screw thread
On slot, the fixation of sliding sleeve (41) in realization, meanwhile, upper sliding sleeve (41) and fixed link (42) can also use screw thread side
Formula connection, engagement thread connection increase the structural strength between sliding sleeve (41) and fixed link (42), while to use
Dismounting provides convenience in the process.When upper sliding sleeve (41) is located at fixed link (42) bottom, minimum, the h=25mm of height,
Spiral arm (33) radius is maximum, wherein 331 maximum gauge of short spiral arm is 130mm, 332 maximum gauge of long spire arm is 150mm,
Antenna beamwidth is maximum at this time, and at θ=± 60 °, Gain >=2dB meets the needs of satellite communication.With upper sliding sleeve
(41) it moving up, spiral arm (33) radius is constantly shunk, and height increases, work as h=35mm, at θ=± 60 °, Gain >=0dB.
When upper sliding sleeve (41) is located at fixed link (42) top, as shown in figure 4, entire spiral arm (33) is in rounding state, most
Major diameter only has 18mm.By adjusting spiral arm (33) with upper sliding sleeve (41) sliding up and down on fixed link (42),
The radiation diameter of portable circular polarized antenna is converted, and then adjusts beam angle and gain size.
In actual use, when carrying antenna, entire spiral arm (33) is in rounding state and is when Antenna Operation
It obtains maximum beam angle spiral arm (33) and is in radius maximum rating, the electric signal that terminal is sent is connect by the SMA of the antenna
The input terminal of head (12) is passed to antenna, is converted into circularly polarized signal by phase shift feeding network component (2), will by radiator (3)
Electric signal is converted to electromagnetic wave, is radiated in space with corresponding frequency, is then the mistake of a reciprocity when the antennas receive signals
Journey.
The present invention also provides a kind of multimode circular polarisation combined antennas, are in above-mentioned portable entelechy referring to Figures 5 and 6
S band antenna (5) are laid at the top for changing antenna, S band antenna (5), are that a job is hand-held in the mobile satellite communication of S frequency range
Antenna, antenna type is using the four-arm spiral antenna of high-gain, broad beam, and connector passes through screw thread and upper limit cap (43) are solid
Fixed, feeder line, which then passes through, feeds it inside fixed link (42), can reduce in this way mutual between S frequency range and uhf band antenna
Coupling, so that integral antenna work can have good radiance in S frequency range and uhf band.
The embodiment of the present invention work uhf band satellite communication 344~351.3MHz of uplink and downlink frequency range, 389~
Uplink and downlink frequency range 1980MHz~2010MHz, the 2170MHz~2200MHz of 396.3MHz and S band satellite communication.
Above description is only specific example of the invention, it is clear that for those skilled in the art, is understanding this
After the content and principle of invention, all in form and details each may be carried out without departing substantially from the principle of the invention, structure
Kind of modifications and variations, but these modifications and variations based on inventive concept still the claims in the present invention protection scope it
It is interior.
Claims (10)
1. a kind of portable circular polarized antenna, it is characterised in that: including successively lay from bottom to top antenna base component (1),
Phase shift feeding network component (2), radiator (3) and upper carriage (4)；
The radiator (3) include fixing piece (32) under the fixed link (42) and the spiral that are fixed on helix pedestal (31),
Spiral arm (33) and spiral upper fixing element (34), spiral arm (33) helically coiling is on fixed link (42) and both ends lead to respectively
Fixing piece under spiral (32) is crossed to connect with helix pedestal (31), connect by spiral upper fixing element (34) and upper carriage (4)
It connects, the spiral arm (33) is straight by the radiation that upper carriage (4) slides up and down transformation uhf band antenna along fixed link (42)
Diameter, and then adjust beam angle and gain size.
2. portable circular polarized antenna according to claim 1, it is characterised in that: the spiral arm (33) includes four groups of bottoms
The bottom end of portion connected short helix (331) and long spire line (332), the short helix (331) and long spire line (332) is logical
It crosses conducting wire to connect with phase shift feeding network component (2), the short helix (331) and long spire line (332) are wound on admittedly in the same direction
In fixed pole (42).
3. portable circular polarized antenna according to claim 2, it is characterised in that: the spiral arm (33) is multiple groups, root
It is wound in a manner of left-hand screw or right-hand screw on fixed link (42) according to required polarization mode.
4. described in any item portable circular polarized antennas according to claim 1~3, it is characterised in that: the phase shift transmission network
Network component (2) includes adapter lead (21) and phase shift power-devided circuit (22), the adapter lead (21) and antenna base component (1)
The other end of connection, the adapter lead (21) is connect by phase shift power-devided circuit (22) with spiral arm (33).
5. portable circular polarized antenna according to claim 4, it is characterised in that: the phase shift power-devided circuit (22) it is every
A output port amplitude is equal and phase successively lags 90 °, forms circularly polarised wave.
6. portable circular polarized antenna according to claim 5, it is characterised in that: the four of the phase shift power-devided circuit (22)
A output end and spiral arm (33) correspond.
7. portable circular polarized antenna according to claim 4, it is characterised in that: the upper carriage (4) includes upper
Sliding sleeve (41) and upper limit cap (43), the upper limit cap (43) setting in the end of fixed link (42), it is described on
Sliding sleeve (41) is sleeved on fixed link (42) and can slide up and down along fixed link (42), the upper end of the spiral arm (33) with
Upper sliding sleeve (41) connection.
8. portable circular polarized antenna according to claim 7, it is characterised in that: the upper carriage (4) further includes
Elastic positioning device (44) offers detent slot, the elastic positioning device (44) and card on the side wall of the fixed link (42)
Position slot clamping positioning.
9. a kind of multimode circular polarisation combined antenna, it is characterised in that: including portable circular polarized antenna described in claim 1 with
And S band antenna (5), the portable circular polarized antenna work in uhf band, the S band antenna (5) is arranged portable
The top of circular polarized antenna.
10. multimode circular polarisation combined antenna according to claim 9, it is characterised in that: the feedback of the S band antenna (5)
Line is fed inside the fixed link (42) of portable circular polarized antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071972.2A CN109599653A (en) | 2019-01-25 | 2019-01-25 | A kind of portable circular polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071972.2A CN109599653A (en) | 2019-01-25 | 2019-01-25 | A kind of portable circular polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109599653A true CN109599653A (en) | 2019-04-09 |
Family
ID=65966652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910071972.2A Pending CN109599653A (en) | 2019-01-25 | 2019-01-25 | A kind of portable circular polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109599653A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098479A (en) * | 2019-06-11 | 2019-08-06 | 中国电子科技集团公司第五十四研究所 | Frequency reconfigurable quadrifilar helix antenna device |
| CN113948856A (en) * | 2021-11-04 | 2022-01-18 | 深圳市电咖测控科技有限公司 | GNSS helical antenna |
| CN116315619A (en) * | 2023-05-19 | 2023-06-23 | 湖南中电星河电子有限公司 | Ultra-wideband high-gain helical antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110011A (en) * | 1993-12-06 | 1995-10-11 | 阿尔卡泰尔有限公司 | Antenna assembly |
| CN2228688Y (en) * | 1995-07-14 | 1996-06-05 | 中国人民解放军总参谋部第63研究所 | Multi-arm spiral antenna |
| WO1997042682A2 (en) * | 1996-05-07 | 1997-11-13 | Leo One Ip, L.L.C. | Multi-band concentric helical antenna |
| CN209344291U (en) * | 2019-01-25 | 2019-09-03 | 西安星网天线技术有限公司 | A kind of portable circular polarized antenna and multimode circular polarisation combined antenna |
-
2019
- 2019-01-25 CN CN201910071972.2A patent/CN109599653A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110011A (en) * | 1993-12-06 | 1995-10-11 | 阿尔卡泰尔有限公司 | Antenna assembly |
| CN2228688Y (en) * | 1995-07-14 | 1996-06-05 | 中国人民解放军总参谋部第63研究所 | Multi-arm spiral antenna |
| WO1997042682A2 (en) * | 1996-05-07 | 1997-11-13 | Leo One Ip, L.L.C. | Multi-band concentric helical antenna |
| CN209344291U (en) * | 2019-01-25 | 2019-09-03 | 西安星网天线技术有限公司 | A kind of portable circular polarized antenna and multimode circular polarisation combined antenna |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098479A (en) * | 2019-06-11 | 2019-08-06 | 中国电子科技集团公司第五十四研究所 | Frequency reconfigurable quadrifilar helix antenna device |
| CN110098479B (en) * | 2019-06-11 | 2024-02-09 | 中国电子科技集团公司第五十四研究所 | Frequency reconfigurable four-arm helical antenna device |
| CN113948856A (en) * | 2021-11-04 | 2022-01-18 | 深圳市电咖测控科技有限公司 | GNSS helical antenna |
| CN116315619A (en) * | 2023-05-19 | 2023-06-23 | 湖南中电星河电子有限公司 | Ultra-wideband high-gain helical antenna |
| CN116315619B (en) * | 2023-05-19 | 2023-07-21 | 湖南中电星河电子有限公司 | Ultra-wideband high-gain helical antenna |
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