CN106099336A - A kind of ultrashort wave antenna combined at 30MHz 1350MHz frequency range active passive - Google Patents
A kind of ultrashort wave antenna combined at 30MHz 1350MHz frequency range active passive Download PDFInfo
- Publication number
- CN106099336A CN106099336A CN201610701320.9A CN201610701320A CN106099336A CN 106099336 A CN106099336 A CN 106099336A CN 201610701320 A CN201610701320 A CN 201610701320A CN 106099336 A CN106099336 A CN 106099336A
- Authority
- CN
- China
- Prior art keywords
- rod body
- annulus
- main rod
- layer
- bar
- 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.)
- Granted
Links
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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Abstract
The invention discloses a kind of ultrashort wave antenna combined at 30MHz 1350MHz frequency range active passive, including main rod body and bottom main rod body arrange bracing frame, main rod body top arrange T-shaped oscillator, described main rod body is merogenesis payload antenna, including upper bar, middle part bar, lower pole；Centre position coilloading coil between upper bar and middle part bar; centre position between upper bar and middle part bar arranges circular groove; the diameter of circular groove is identical with the diameter of inductance coil; inductance coil imbeds main rod body from circular groove; arrange between upper bar and middle part bar protective layer cover on main rod body surface, and be connected with protective layer by gland.In the junction of main rod body and T-shaped oscillator, setting adds sensor, and adding sensor is cylinder, and one end is closed, and the other end is opened, and T-shaped oscillator is in cylindrical interior through the center connecting hole of blind end with adding sensor fitting connection.
Description
Technical field
The present invention relates to one and carrying highly sensitive ultrashort wave antenna, be specifically related to a kind of at 30MHz-1350MHz frequency
The ultrashort wave antenna that rate scope active passive combines.
Background technology
Antenna is a kind of changer, and it, the guided wave of transmission above-the-line promotion, is transformed in unbounded medium the electricity propagated
Magnetic wave, or carry out contrary conversion.In radio, it is used for launching or receiving the parts of electromagnetic wave.Radio communication,
The engineering systems such as broadcast, TV, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, every use electromagnetic waves to transmission information
, depend on antenna and be operated.Additionally, in terms of transmitting energy with electromagnetic wave, the energy radiation of non-signal is also required to sky
Line.General antenna all has reversibility, i.e. both can be used as with common antenna launching antenna, it is possible to as reception antenna.On the same day
Line is identical as the fundamental characteristics parameter launched or receive.The development of radiotechnics, the development with antenna technology is close
Relevant.Short-wave receiving antenna design now, the active and passive two kinds of methods of general employing.The design of passive antenna, generally adopts
The effective aperture of antenna is determined, it may be assumed that A=Pmax/S with the ratio of the peak power received with power density.In formula, A is that antenna has
Effect bore；Pmax is the peak power received；S is power density.The design of active antenna, compensates with the gain of active electric network
The gain that passive antenna is caused because size diminishes declines, thus reaches to reduce antenna size purpose.According to traditional passive sky
Line design principle, the antenna frequencies scope designed can not reach higher in 30MHz---1350MHz frequency range
Radiation efficiency, and input impedance changes the most greatly.Tradition merogenesis payload antenna design, is difficult to determine optimum by calculating merely
Loading position, only determines by continuously attempting to, so needs repetition test, have certain blindness, and workload is the biggest.
Use the antenna of active antenna design principle design, although can widen frequency band, but also reduce simultaneously antenna signal to noise ratio and can
By property, add the formation probability of intermodulation product, be difficult to obtain uniform input impedance.
The most effectively improve the sensitivity in 30MHz---1350MHz frequency range of the antenna frequencies scope and open up
Broadband characteristic has become a problem being worth research.
Summary of the invention
The technical problem to be solved is to improve antenna frequencies scope in 30MHz---1350MHz frequency range
Sensitivity and widen frequency characteristic, it is therefore intended that provide a kind of 30MHz-1350MHz frequency range active passive combine
Ultrashort wave antenna, solves improve the sensitivity in 30MHz---1350MHz frequency range of the antenna frequencies scope and widen frequency
The problem of characteristic.
The present invention is achieved through the following technical solutions:
A kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive, including main rod body and at mobile jib
The T-shaped oscillator that bottom body, the bracing frame of setting, main rod body top are arranged, it is characterised in that: described main rod body is merogenesis load sky
Line, including upper bar, middle part bar, lower pole；And the inductance coil and a part of embedding connected between upper bar and middle part bar
Enter in the circular groove in upper bar and bar centre position, middle part, protective layer is set between upper bar and middle part bar and covers in main rod body
Surface, and be connected with protective layer by gland.Arrange in the junction of main rod body and T-shaped oscillator and add sensor, add sensor for circle
Cylindricality, one end closes, and the other end opens, and T-shaped oscillator is connected to add in sensor by the center connecting hole of blind end, wherein said
Add sensor: include ground floor annulus, second layer annulus, third layer annulus and the 4th layer of annulus circle the most successively from connection hole；
Connecting hole diameter is identical with the interior circular diameter of ground floor annulus, and the outside diameter of ground floor annulus and the inner circle of second layer annulus are straight
Footpath is identical, and second layer annulus outside diameter is identical with the interior circular diameter of third layer annulus, the outside diameter of third layer annulus and
Four layers of annulus loop diameter are identical, add 4 ingredients of sensor all by being welded to connect；Ground floor annulus and third layer annulus are each
At least one aperture is set.In order to solve to improve this problem of frequency characteristic, the present invention uses addition one to add sensor and improve
Widening whole frequency characteristic, in order to widen the operating frequency of antenna, on antenna, segmentation accesses reactance and resistive element.When necessarily
When size oscillator is operated in a wider frequency range, several series resonance frequency and parallel connection may be comprised in its band is logical
Resonant frequency.At this moment, if add suitable selective resonance frequency on vertical antenna adds sensor, it is possible to improve by Vertical Vibrating
Son and the frequency characteristic adding the equivalent network that the most a few sections in series of sensor forms, so that this merogenesis payload antenna tool
Have a widest frequency characteristic, and according to practical function object may utilize genetic iteration algorithm to determine the size of whole antenna with
And add sensor size and little hole number.In order to solve to improve antenna frequencies scope in 30MHz---1350MHz frequency range
Sensitivity, takes the CURRENT DISTRIBUTION that the measure of coilloading coil improves on antenna on antenna, thus improves ultrashort wave antenna
Radiation efficiency；Use the synergy emulation method design of field road, utilize genetic iteration algorithm to carry out optimum loading position optimization, reach
Design i.e. practical purpose, the present invention passes through load mode, in the range of operating frequency 30MHz---1350MHz, executes and improve sky
CURRENT DISTRIBUTION on line, it is possible to obtain uniform input impedance.
Described pressing gland and protective layer, connected by spline, spline-shaped is circular, and flower odontoid is triangle cylinder,
The gore of triangle cylinder.Diameter 5-10m, flower number of teeth amount is 25-50, and the gore base of triangle cylinder is
0.2-0.6m, a height of 0.4-0.9m；The a length of 3-5m of flower tooth.Spline couples and is made up of internal spline and external splines.Inside and outside spline
Being multiple tooth part, the simple and convenient operator of spline attended operation dismantle, and the protective layer of setting covers at main rod body surface, energy
Anticorrosion is that the loading coil arranged is played a protective effect.
Described T-shaped oscillator is made up of two pitch circle cylinders, and wherein one end of a pitch circle cylinder is welded and fixed with main rod body, separately
One end uses to threaded with another pitch circle cylinder and forms T font.Achieve the automatic adjustment of antenna oscillator length, simple easily behaviour
Make and facilitate addition to add sensor.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, a kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive of the present invention, utilizes genetic iteration
Loading position is optimized by algorithm, it is to avoid the workload of repetition test, finally gives optimum loading Position；
2, a kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive of the present invention, T-shaped oscillator is by two
Pitch circle cylinder uses threaded formation T font, it is achieved that the automatic adjustment of antenna oscillator length, simple to operation and convenient
Add sensor；
3, a kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive of the present invention, on vertical antenna
Add suitable selective resonance frequency adds sensor, it is possible to improves by vertical dipole and adds what the most a few sections in series of sensor formed
The frequency characteristic of one equivalent network, executes the CURRENT DISTRIBUTION improving on antenna.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
The parts title of labelling and correspondence in accompanying drawing:
The 4th layer of annulus circle of 1-, 2-aperture, 3-connecting hole, 4-T type oscillator, 5-ground floor annulus, 6-second layer annulus, 7-the 3rd
Layer annulus, 8-main rod body, 9-bracing frame, 10-upper bar, 11-inductance coil, bar in the middle part of 12-, 13-protective layer, 14-presses gland.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As it is shown in figure 1, a kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive of the present invention,
Including main rod body 8, lower pole 304 stainless steel tubes of external diameter Φ 159cm, wall thickness 3cm and external diameter Φ 150cm, the aluminum of wall thickness 4cm
Pipe and the insulator etc. made with expoxy glass stringing form, high 4703cm weight 45KG.Middle part bar external diameter Φ 120cm, wall thickness
The aluminum pipe of 4cm, the composition such as cable quadrant and adpting flange, high 4550cm, weight 23KG.Upper bar external diameter Φ 90cm, wall thickness 3cm's
Aluminum pipe, cable quadrant, the composition such as loading storehouse and adpting flange, high 4550cm, weight 14KG.Top bar external diameter Φ 65cm, wall thickness
The aluminum pipe of 2.5cm and adpting flange etc. form, high 4500cm, weight 7.7KG and the bracing frame 9,3 arranged bottom main rod body 8
The compositions such as the aluminum pipe of root length 2M and the insulator made with expoxy glass stringing, the T-shaped oscillator 4 that main rod body 8 top is arranged, connect
Cylinder external diameter Φ 80cm, wall thickness 2cm, the long 880cm of main rod body 8, the most threaded another cylinder external diameter Φ 75cm, wall thickness
2cm, long 950cm, arrange in the junction of main rod body 8 and T-shaped oscillator 4 and add sensor, and adding sensor is cylinder, and one end is closed, separately
One end is opened, and T-shaped oscillator is in cylindrical interior, Qi Zhongsuo through the center connecting hole 3 of blind end with adding sensor fitting connection
State and add sensor: at connecting hole 3, include ground floor annulus 5, second layer annulus 6, third layer annulus 7 and the 4th layer of circle the most successively
Ring 1；The a diameter of 75cm of inner circle of connecting hole 3 diameter and ground floor annulus 5, the outside diameter of ground floor annulus 5 and the second layer
The a diameter of 500cm of inner circle of annulus 6, a diameter of 1000cm of inner circle of second layer annulus cylindrical 6 diameter and third layer annulus 7, the
Cylindrical 7 diameter of three layers of annulus and the 4th layer of a diameter of 1500cm of annulus circle 1, add 4 ingredients of sensor all by welding
Connect；Ground floor annulus 5 and third layer annulus 7 respectively arrange 7 apertures 2, and hole diameter is 50cm.Upper bar 10 and middle part bar 12
Centre position loading coil 11 external diameter Φ 80mm is set, by gland 14 and protective layer 13, connected by spline, spline-shaped is
Circle, flower odontoid is triangle cylinder, the gore of triangle cylinder.Diameter 5-10cm, flower number of teeth amount is 25-50,
The gore base of triangle cylinder is 0.2-0.6cm, a height of 0.4-0.9cm；The a length of 3-5cm of flower tooth.Spline couples
It is made up of internal spline and external splines, when operating, in its band is logical, comprises 2 series resonance frequencys and parallel resonance frequency.This
Time add add sensor, it is possible to improve by oscillator and the frequency adding the equivalent network that the most a few sections in series of sensor forms
Characteristic so that this merogenesis payload antenna has the widest frequency characteristic, comprise in its band is logical 2 series resonance frequencys and
Parallel resonance frequency.At this moment the inductance coil added, it is possible to improve in operating frequency range (1MHz---8MHz), execute and change
CURRENT DISTRIBUTION on kind antenna, it is possible to obtain uniform input impedance.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (4)
1. the ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive, including main rod body (8) and
Bracing frame (9), the T-shaped oscillator (4) of main rod body (8) top setting in the setting of main rod body (8) bottom, it is characterised in that: described
Main rod body (8) is merogenesis payload antenna, including upper bar (10), middle part bar (12), lower pole；And upper bar (10) and middle part
The inductance coil (11) and the part that connect between bar (12) imbed upper bar (10) and the circle in middle part bar (12) centre position
In connected in star, arrange between upper bar (10) and middle part bar (12) protective layer (13) cover on main rod body surface, and with protection
Layer (13) connect by gland (14).
2. arranging in the junction of main rod body (8) and T-shaped oscillator (4) and add sensor, adding sensor is cylinder, and one end is closed, another
End is opened, and T-shaped oscillator (4) is connected to add in sensor by the center connecting hole (3) of blind end, the wherein said sensor that adds: from even
Meet hole (3) place and include ground floor annulus (5), second layer annulus (6), third layer annulus (7) and the 4th layer of annulus circle the most successively
(1)；Connecting hole (3) diameter is identical with the interior circular diameter of ground floor annulus (5), the outside diameter and second of ground floor annulus (5)
The interior circular diameter of layer annulus (6) is identical, and second layer annulus (6) outside diameter is identical with the interior circular diameter of third layer annulus (7), the
The outside diameter of three layers of annulus (7) and the 4th layer of annulus circle (1) diameter are identical, add 4 ingredients of sensor all by welding
Connect；Ground floor annulus (5) and third layer annulus (7) respectively arrange at least one aperture (2).
A kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive the most according to claim 1,
It is characterized in that: described in by gland (14) and protective layer (13), connected by spline, spline-shaped be circular, and colored odontoid is
Triangle cylinder, the gore of triangle cylinder.
A kind of ultrashort wave antenna combined at 30MHz-1350MHz frequency range active passive the most according to claim 1,
It is characterized in that: described T-shaped oscillator (4) is made up of two pitch circle cylinders, wherein one end of a pitch circle cylinder is welded with main rod body (8)
Connecing fixing, the other end uses to threaded with another pitch circle cylinder and forms T font.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701320.9A CN106099336B (en) | 2016-08-23 | 2016-08-23 | A kind of ultrashort wave antenna combined in 30MHz-1350MHz frequency range active passive |
| PCT/CN2017/087008 WO2018036240A1 (en) | 2016-08-23 | 2017-06-02 | Ultra-short wave antenna being both active and passive in frequency range of 30 mhz-1350 mhz |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701320.9A CN106099336B (en) | 2016-08-23 | 2016-08-23 | A kind of ultrashort wave antenna combined in 30MHz-1350MHz frequency range active passive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106099336A true CN106099336A (en) | 2016-11-09 |
| CN106099336B CN106099336B (en) | 2018-12-28 |
Family
ID=57224637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610701320.9A Active CN106099336B (en) | 2016-08-23 | 2016-08-23 | A kind of ultrashort wave antenna combined in 30MHz-1350MHz frequency range active passive |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106099336B (en) |
| WO (1) | WO2018036240A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036240A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Ultra-short wave antenna being both active and passive in frequency range of 30 mhz-1350 mhz |
| WO2018036225A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Sectional-load shortwave antenna capable of automatically adjusting antenna oscillator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200232Y (en) * | 1994-09-24 | 1995-06-07 | 西安电子科技大学 | Short wave wide-band centre-fed emission aerial |
| CN102157772A (en) * | 2010-12-08 | 2011-08-17 | 宝鸡烽火诺信科技有限公司 | Vehicle-mounted ultrashort wave wide antenna |
| CN203674365U (en) * | 2013-12-31 | 2014-06-25 | 成都华日通讯技术有限公司 | Portable ultrashort wave monitoring antenna |
| CN104485518A (en) * | 2014-12-27 | 2015-04-01 | 成都光大灵曦科技发展股份有限公司 | Ultrashort wave folding type discone antenna |
| CN105552559A (en) * | 2015-12-12 | 2016-05-04 | 宝鸡烽火诺信科技有限公司 | Dual-outlet vehicle-borne antenna |
| WO2016090638A1 (en) * | 2014-12-12 | 2016-06-16 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | Dipole antenna for radio frequency identification (rfid) tag |
| CN205960194U (en) * | 2016-08-23 | 2017-02-15 | 成都中亚通茂科技股份有限公司 | At 30MHz carry high sensitivity's ultra -short wave antenna device in 1350MHz frequency range |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719471A (en) * | 1986-01-21 | 1988-01-12 | Westinghouse Electric Corp. | Angulated FM antenna |
| CN201466201U (en) * | 2009-07-16 | 2010-05-12 | 成都中亚通茂科技有限公司 | Passive monitoring antenna |
| CN105186116A (en) * | 2015-07-16 | 2015-12-23 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Wideband monopole microstrip antenna |
| CN205960193U (en) * | 2016-08-23 | 2017-02-15 | 成都中亚通茂科技股份有限公司 | Can widen frequency characteristic's merogenesis load short wave antenna |
| CN106299621A (en) * | 2016-08-23 | 2017-01-04 | 成都中亚通茂科技股份有限公司 | A kind of merogenesis load short-wave antenna that can be automatically adjusted antenna oscillator |
| CN106099336B (en) * | 2016-08-23 | 2018-12-28 | 成都中亚通茂科技股份有限公司 | A kind of ultrashort wave antenna combined in 30MHz-1350MHz frequency range active passive |
-
2016
- 2016-08-23 CN CN201610701320.9A patent/CN106099336B/en active Active
-
2017
- 2017-06-02 WO PCT/CN2017/087008 patent/WO2018036240A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200232Y (en) * | 1994-09-24 | 1995-06-07 | 西安电子科技大学 | Short wave wide-band centre-fed emission aerial |
| CN102157772A (en) * | 2010-12-08 | 2011-08-17 | 宝鸡烽火诺信科技有限公司 | Vehicle-mounted ultrashort wave wide antenna |
| CN203674365U (en) * | 2013-12-31 | 2014-06-25 | 成都华日通讯技术有限公司 | Portable ultrashort wave monitoring antenna |
| WO2016090638A1 (en) * | 2014-12-12 | 2016-06-16 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | Dipole antenna for radio frequency identification (rfid) tag |
| CN104485518A (en) * | 2014-12-27 | 2015-04-01 | 成都光大灵曦科技发展股份有限公司 | Ultrashort wave folding type discone antenna |
| CN105552559A (en) * | 2015-12-12 | 2016-05-04 | 宝鸡烽火诺信科技有限公司 | Dual-outlet vehicle-borne antenna |
| CN205960194U (en) * | 2016-08-23 | 2017-02-15 | 成都中亚通茂科技股份有限公司 | At 30MHz carry high sensitivity's ultra -short wave antenna device in 1350MHz frequency range |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036240A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Ultra-short wave antenna being both active and passive in frequency range of 30 mhz-1350 mhz |
| WO2018036225A1 (en) * | 2016-08-23 | 2018-03-01 | 成都中亚通茂科技股份有限公司 | Sectional-load shortwave antenna capable of automatically adjusting antenna oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018036240A1 (en) | 2018-03-01 |
| CN106099336B (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8497749B2 (en) | Single conductor surface wave transmission line system for terminating E field lines at points along the single conductor | |
| Wang et al. | Theory and analysis of leaky coaxial cables with periodic slots | |
| JP3913778B2 (en) | Reverse winding antenna | |
| US8421678B2 (en) | Antenna apparatus provided with radiation conductor with notched portion | |
| CN102110908B (en) | TD-LTE (Time Division-Long Term Evolution) indoor dual-polarized antenna | |
| CN103378394B (en) | A kind of directional coupler based on transformer | |
| CN106099336A (en) | A kind of ultrashort wave antenna combined at 30MHz 1350MHz frequency range active passive | |
| CN205960194U (en) | At 30MHz carry high sensitivity's ultra -short wave antenna device in 1350MHz frequency range | |
| CN201219131Y (en) | Double-choking sleeve antenna | |
| CN103337916B (en) | Based on the wireless electric energy transmission device of low frequency composite electromagnetic Meta Materials | |
| CN104009299A (en) | Dual-polarization base station antenna | |
| CN201766168U (en) | Transmit-receive integrated antenna for high-frequency surface wave radar | |
| CN204614927U (en) | Antenna array of hybrid radiator assembly | |
| CN209626415U (en) | A kind of water-drop-shaped ultra-wideband ground-penetrating radar (uw-gpr) antenna | |
| CN205960193U (en) | Can widen frequency characteristic's merogenesis load short wave antenna | |
| CN106299621A (en) | A kind of merogenesis load short-wave antenna that can be automatically adjusted antenna oscillator | |
| CN104681969B (en) | Hybrid radiant body antenna structure | |
| CN209056595U (en) | Dual polarization ultra-wideband antenna | |
| CN104282982A (en) | Computer battery plate with built-tin antenna | |
| CN107681276A (en) | A kind of multiband ring loading groove the big angle ripple trumpet and satellite communication system | |
| CN109473772A (en) | Dual polarization ultra-wideband antenna | |
| CN106299620A (en) | A kind of uniform short-wave antenna of input impedance in 1MHz 8MHz frequency range | |
| CN205985329U (en) | At 1MHz carry high sensitivity's short wave antenna in 8MHz frequency range | |
| CN203690464U (en) | Wide frequency leaky coaxial cable without resonance point in application range | |
| CN109326875A (en) | A kind of signal amplification antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |