CN204348910U - A kind of airborne ultra-short wave omnidirectional antenna - Google Patents
A kind of airborne ultra-short wave omnidirectional antenna Download PDFInfo
- Publication number
- CN204348910U CN204348910U CN201420770901.4U CN201420770901U CN204348910U CN 204348910 U CN204348910 U CN 204348910U CN 201420770901 U CN201420770901 U CN 201420770901U CN 204348910 U CN204348910 U CN 204348910U
- Authority
- CN
- China
- Prior art keywords
- oscillator
- antenna
- impedance matching
- matching circuit
- combined printing
- 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.)
- Active
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model discloses a kind of airborne ultra-short wave omnidirectional antenna, comprise an one-time formed streamlined cover body, described cover body top is provided with an oval sheet oscillator, small loop antenna and the combined printing oscillator of integral type is provided with in described cover body, the first impedance matching circuit and the second impedance matching circuit is provided with bottom described combined printing oscillator, described first impedance matching circuit is in parallel with combined printing oscillator, and described second impedance matching circuit is connected with combined printing oscillator; Described small loop antenna is positioned at combined printing oscillator top, and described oval sheet oscillator is all connected with low-frequency range loaded circuit with small loop antenna.The airborne ultra-short wave omnidirectional antenna that the utility model provides, by adopting one-time formed streamlined cover body, optimize inner antenna impedance matching circuit and loaded circuit, decrease electronic devices and components quantity, thus there is wider working band, and volume is little, lightweight, favorable sealing property, is suitable for working in adverse circumstances.
Description
Technical field
The utility model relates to a kind of antenna, particularly relates to a kind of airborne ultra-short wave omnidirectional antenna.
Background technology
The working band of prior art airborne antenna is wide general within the scope of 30MHz ~ 80MHz or 108MHz ~ 400MHz, can't meet and cover 30MHz ~ 400MHz requirement.At inner antenna design aspect, because of impedance matching circuit and loaded circuit design complexity, electronic devices and components quantity is more, and its MTBF (mean time between failures (MTBF)) value is low.In radome design, because radome is spliced by two pieces or polylith, the impact of being expanded with heat and contract with cold easily produces small gap, is not suitable for the flight environment of vehicle of southern rainy water.In profile, volume and weight, its height, weight are unwell to the installation requirement of small aircraft and helicopter.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of airborne ultra-short wave omnidirectional antenna, has wider working band, and volume is little, lightweight, favorable sealing property, is suitable for working in adverse circumstances.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of airborne ultra-short wave omnidirectional antenna, comprise an one-time formed streamlined cover body, described cover body top is provided with an oval sheet oscillator, small loop antenna and the combined printing oscillator of integral type is provided with in described cover body, the first impedance matching circuit and the second impedance matching circuit is provided with bottom described combined printing oscillator, described first impedance matching circuit is in parallel with combined printing oscillator, and described second impedance matching circuit is connected with combined printing oscillator; Described small loop antenna is positioned at combined printing oscillator top, and described oval sheet oscillator is all connected with low-frequency range loaded circuit with small loop antenna.
Above-mentioned airborne ultra-short wave omnidirectional antenna, wherein, described low-frequency range loaded circuit is made up of an inductance and a resistant series.
Above-mentioned airborne ultra-short wave omnidirectional antenna, wherein, described first impedance matching circuit is composed in series with an inductance by after an electric capacity and a resistor coupled in parallel, described first impedance matching circuit is arranged on the bottom of combined printing oscillator, inductance end wherein connects combination printing vibrator, resistance and capacitance terminal ground connection.
Above-mentioned airborne ultra-short wave omnidirectional antenna, wherein, the impedance matching circuit of described combined printing oscillator series connection forms with a capacitances in series by after two inductance in parallels, described second impedance matching circuit is arranged on the bottom of combined printing oscillator, capacitance terminal wherein connects combination printing vibrator, inductance end ground connection.
The utility model contrast prior art has following beneficial effect: the airborne ultra-short wave omnidirectional antenna that the utility model provides, by adopting one-time formed streamlined cover body, optimize inner antenna impedance matching circuit and loaded circuit, decrease electronic devices and components quantity, thus there is wider working band, and volume is little, lightweight, favorable sealing property, is suitable for working in adverse circumstances.
Accompanying drawing explanation
Fig. 1 is the front cross-sectional structural representation of the utility model airborne ultra-short wave omnidirectional antenna;
Fig. 2 is the side, sectional structural representation of the utility model airborne ultra-short wave omnidirectional antenna;
Fig. 3 is the electrical schematic diagram of the utility model airborne ultra-short wave omnidirectional antenna.
In figure:
1 cover body 2 oval sheet oscillator 3 combined printing oscillator
4 first impedance matching circuit 5 second impedance matching circuit 6 small loop antennas
7 low-frequency range loaded circuits
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the front cross-sectional structural representation of the utility model airborne ultra-short wave omnidirectional antenna; Fig. 2 is the side, sectional structural representation of the utility model airborne ultra-short wave omnidirectional antenna; Fig. 3 is the electrical schematic diagram of the utility model airborne ultra-short wave omnidirectional antenna.
Refer to Fig. 1, Fig. 2 and Fig. 3, the airborne ultra-short wave omnidirectional antenna that the utility model provides comprises an one-time formed streamlined cover body 1, described cover body 1 top is provided with an oval sheet oscillator 2, small loop antenna 6 and the combined printing oscillator 3 of integral type is provided with in described cover body 1, the first impedance matching circuit 4 and the second impedance matching circuit 5 is provided with bottom described combined printing oscillator 3, described first impedance matching circuit 4 is in parallel with combined printing oscillator 3, and described second impedance matching circuit 5 is connected with combined printing oscillator 3; Described small loop antenna 6 is positioned at combined printing oscillator 3 top, and described oval sheet oscillator 2 is all connected with low-frequency range loaded circuit 7 with small loop antenna 6.
The airborne ultra-short wave omnidirectional antenna that the utility model provides, streamlined cover body 1 selects epoxy glass fiber cloth one-shot forming, not only reduces weight but also achieve the intensity of radome and the overall tightness of antenna.Through taking a flight test, aerial mechanical intensity meets vehicle technology requirement.Epoxy glass fiber cloth is formulated by WSR618 (E-51) type epoxy resin and 0.1mm alkali-free glass fiber cloth A type (EW100-100FE5), 0.4mm alkali-free glass fiber cloth (EWR400-900).
An oval sheet oscillator 2 is arranged on the top of cover body.When specifically making, it is the oval aluminium dish being made into a profile 210mm (major axis) × 70mm (minor axis) × 1mm (thick).
Combined printing oscillator 3, first impedance matching circuit 4 and the first impedance matching circuit 5 are arranged in cover body 1, and the top of combined printing oscillator 3 is connected with an oval sheet oscillator 2; First impedance matching circuit 4 is composed in series with an inductance by after an electric capacity and a resistor coupled in parallel, and in parallel with combined printing oscillator, resistance and capacitance terminal ground connection; Second impedance matching circuit 5 is composed in series with an inductance by after an electric capacity and a resistor coupled in parallel, and connects with combined printing oscillator.
Small loop antenna 6, low-frequency range loaded circuit 7 are arranged on the top of combined printing oscillator, and the upper end of sheet micro-band plate oscillator is connected with the oval sheet oscillator 2 on it, and low-frequency range loaded circuit 7 is formed by an electric capacity and a resistant series and connected with small loop antenna 6.As shown in Figure 3, L is small loop antenna, and L4, R2 are low-frequency range loaded circuit, to improve the gain of 30 ~ 88MHz low-frequency range.B1 is oval sheet oscillator, improves antenna gain and reduces the loss of antenna impedance matching.B2 is combined printing oscillator, to realize broadband antenna technology.(according to antenna theory, the thicker frequency band of antenna oscillator diameter is wider.Oscillator is deformed into cuboid, in order to increase vibrator diameter, for reducing antenna weights, adopts FR4 epoxy plate printed circuit board (PCB) to surround cuboid, forming combined printing oscillator, reduce antenna weights.) C2, L2, L3 be the series impedance match circuit of combined printing oscillator.L1, C1, R1 are the parallel impedance match circuit of combined printing oscillator.Many places coupling is to increase the beamwidth of antenna.
Antenna of the present utility model has the advantages that volume is little, lightweight, working band is wide, reliability is high, adapt to various adverse circumstances, 2.5 are less than in 30MHz ~ 400MHz scope internal antenna voltage standing wave ratio, gain is from-16dB ~-1dB, horizontal radiation pattern is circular, deviation in roundness is less than 2dB, perpendicular polarization, can meet various needs.
The comprehensive unipole antenna of airborne antenna of the present utility model, column antenna, add top antenna, small loop antenna form and wideband impedance match and loading technique, by the band spread of antenna to 30MHz ~ 400MHz, and reduce size and the weight of antenna greatly; Optimize the impedance matching circuit of antenna, reduce the usage quantity of electronic devices and components, both improved the gain of antenna, and turn increased the reliability of antenna.Adopt one-time formed streamlined radome, meet the needs of various severe environment for use.
1) unipole antenna
Use monopole technique, dipole antenna arm is become a metal mirror, and unipole antenna produces mirror image under metal mirror, and antenna and antenna mirror image form dipole antenna.The general metallic film laid in the metal skin of aircraft or covering is as metal mirror.Therefore, unipole antenna is adopted can to reduce the antenna height of half.
2) column antenna
Column antenna is theoretical: the vibrator diameter of overstriking cylinder dipole or unipole antenna can the broadening beamwidth of antenna.In conjunction with some technology of printed antenna, this antenna is made the antenna of combined printing oscillator form, while the broadening beamwidth of antenna, also reduce the weight of antenna.
3) top antenna is added
Antenna adds top technology and namely adds horizontal horizontal line or plane in the vertical line upper end of antenna.After antenna adds top, the antinode of electric current improves, on the one hand can Enhanced Radiation Reduced Blast, can reduce the capacitive reactance of antenna input on the other hand, thus reduce the loss of antenna bottom impedance matching circuit.
4) small loop antenna
Adopt small loop antenna technology, reduce the antenna height that antenna is required when 30 ~ 88MHz resonance greatly, improve the gain of antenna in 30 ~ 88MHz low-frequency range.
5) wideband impedance match and loading
Adopt wideband impedance match and loading technique, further by beamwidth of antenna broadening to 30 ~ 400MHz, to realize the requirement of the beamwidth of antenna.
In sum, the airborne ultra-short wave omnidirectional antenna that utility model provides, has wider working band, and volume is little, lightweight, favorable sealing property, is suitable for working in adverse circumstances.Concrete advantage is as follows: 1, working band wide (30MHz ~ 400MHz); 2, optimize the good loaded circuit of inner antenna impedance matching circuit, decrease electronic devices and components quantity, reliability is high; 3, radome one-shot forming, favorable sealing property, is suitable for working in adverse circumstances; 4, volume is little, lightweight, is suitable for the installation requirement of small aircraft and helicopter.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection range of the present utility model is when being as the criterion of defining with claims.
Claims (4)
1. an airborne ultra-short wave omnidirectional antenna, it is characterized in that: comprise an one-time formed streamlined cover body, described cover body top is provided with an oval sheet oscillator, small loop antenna and the combined printing oscillator of integral type is provided with in described cover body, the first impedance matching circuit and the second impedance matching circuit is provided with bottom described combined printing oscillator, described first impedance matching circuit is in parallel with combined printing oscillator, and described second impedance matching circuit is connected with combined printing oscillator; Described small loop antenna is positioned at combined printing oscillator top, and described oval sheet oscillator is all connected with low-frequency range loaded circuit with small loop antenna.
2. airborne ultra-short wave omnidirectional antenna as claimed in claim 1, is characterized in that: described low-frequency range loaded circuit is made up of an inductance and a resistant series.
3. airborne ultra-short wave omnidirectional antenna as claimed in claim 1, it is characterized in that: described first impedance matching circuit is composed in series with an inductance by after an electric capacity and a resistor coupled in parallel, described first impedance matching circuit is arranged on the bottom of combined printing oscillator, inductance end wherein connects combination printing vibrator, resistance and capacitance terminal ground connection.
4. airborne ultra-short wave omnidirectional antenna as claimed in claim 1, it is characterized in that: the impedance matching circuit of described combined printing oscillator series connection forms with a capacitances in series by after two inductance in parallels, described second impedance matching circuit is arranged on the bottom of combined printing oscillator, capacitance terminal wherein connects combination printing vibrator, inductance end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770901.4U CN204348910U (en) | 2014-12-09 | 2014-12-09 | A kind of airborne ultra-short wave omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770901.4U CN204348910U (en) | 2014-12-09 | 2014-12-09 | A kind of airborne ultra-short wave omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348910U true CN204348910U (en) | 2015-05-20 |
Family
ID=53232159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420770901.4U Active CN204348910U (en) | 2014-12-09 | 2014-12-09 | A kind of airborne ultra-short wave omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204348910U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883908A (en) * | 2020-08-04 | 2020-11-03 | 西安电子科技大学 | Conformal vertical polarization omnidirectional antenna of ultrashort wave wing |
| CN113690591A (en) * | 2021-08-26 | 2021-11-23 | 西安电子科技大学 | High-gain airborne omnidirectional short-wave loop antenna |
| CN114050411A (en) * | 2021-12-30 | 2022-02-15 | 陕西海积信息科技有限公司 | Airborne antenna and aircraft |
| CN114883795A (en) * | 2022-05-31 | 2022-08-09 | 上海海积信息科技股份有限公司 | Antenna |
-
2014
- 2014-12-09 CN CN201420770901.4U patent/CN204348910U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883908A (en) * | 2020-08-04 | 2020-11-03 | 西安电子科技大学 | Conformal vertical polarization omnidirectional antenna of ultrashort wave wing |
| CN113690591A (en) * | 2021-08-26 | 2021-11-23 | 西安电子科技大学 | High-gain airborne omnidirectional short-wave loop antenna |
| CN113690591B (en) * | 2021-08-26 | 2022-07-12 | 西安电子科技大学 | High-gain airborne omnidirectional short-wave loop antenna |
| CN114050411A (en) * | 2021-12-30 | 2022-02-15 | 陕西海积信息科技有限公司 | Airborne antenna and aircraft |
| CN114883795A (en) * | 2022-05-31 | 2022-08-09 | 上海海积信息科技股份有限公司 | Antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102455333B1 (en) | Antenna systems and terminal equipment | |
| CN105977634B (en) | A kind of LTE Whole frequency band antenna structure of mobile phole | |
| CN203589193U (en) | Wideband multitape coupled antenna structure based on mobile phone metal frame | |
| CN104836031A (en) | Antenna and mobile terminal | |
| CN204668452U (en) | A kind of combination utilizes the antenna for mobile phone of mobile phone frame | |
| CN204348910U (en) | A kind of airborne ultra-short wave omnidirectional antenna | |
| CN103178344A (en) | Multi-frequency-band rear metal cover mobile phone antenna | |
| US20140253411A1 (en) | Wireless terminal | |
| CN103337697B (en) | Seven-band planar terminal antenna | |
| WO2021136232A1 (en) | Antenna structure and electronic device | |
| US9178271B2 (en) | Electronic devices | |
| CN204257819U (en) | Multiband wideband anti-metal antenna | |
| CN208637611U (en) | A kind of VHF-UHF dual-frequency combining omnidirectional antenna | |
| CN203071225U (en) | Loop antenna for mobile terminal | |
| CN203039098U (en) | Planar inverted-F antenna system | |
| CN203760679U (en) | MIMO antenna structure suitable for multi-mode multi-band mobile phone terminal | |
| CN205303665U (en) | Broadband sleeve antenna is presented to side | |
| CN103490145B (en) | A kind of helicopter empennage antenna | |
| CN208570938U (en) | A kind of airborne blade antenna | |
| CN208336505U (en) | A kind of novel high-gain 4G antenna | |
| CN202678524U (en) | Mobile terminal antenna with aperture coupling feed | |
| CN207098044U (en) | Dual polarization high-gain aerial | |
| CN206907923U (en) | Antenna tuning structure and mobile terminal | |
| CN110661096A (en) | Airborne large-dip-angle ultrashort wave communication antenna | |
| CN207165753U (en) | Car antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |