CN105264712A - Airborne antenna system with controllable null pattern - Google Patents
Airborne antenna system with controllable null pattern Download PDFInfo
- Publication number
- CN105264712A CN105264712A CN201480031159.8A CN201480031159A CN105264712A CN 105264712 A CN105264712 A CN 105264712A CN 201480031159 A CN201480031159 A CN 201480031159A CN 105264712 A CN105264712 A CN 105264712A
- Authority
- CN
- China
- Prior art keywords
- antenna
- radiation
- antenna system
- controllable
- receive
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
-
- 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
- H01Q3/06—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 over a restricted angle
-
- 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
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
- H01Q3/2611—Means for null steering; Adaptive interference nulling
-
- 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
- H01Q1/526—Electromagnetic shields
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
A system configured to provide airborne antenna functionality through the application of a controllable null pattern. Coupled to a transceiver, the antenna of the invention is operable in the same frequency band with other transmit and receive antennas mounted in near proximity on an aircraft body. The antenna radiation pattern is varied so that the antenna radiation main beam direction can be controlled over a defined range. The antenna system addresses problems associated with proximate antenna interference by forming the transmit (or receive) antenna- radiation beam shape away from other antennas so as to mitigate nearby transmitter interference, while improving receive system performance without having power reduction requirement from nearby co- located, co-band operating transmitters. This is accomplished through electrical and mechanical tilt of the antenna.
Description
Technical field
The application relates generally to for adjusting the system of antenna pattern with perpendicular polarization, omnidirectional radiation pattern.
Background technology
Due to their operating environment, be mounted and be difficult to realize comprehensive effectiveness to make radio communication become possible existing antenna system on board the aircraft.When operating in a receiving mode, antenna is configured to the line-of-sight signal received from ground or other aircraft.But, be very worthless to the reception of the signal from other launched by airplane antennas.Due to some operation factors, be impossible to the filtering of the signal that these nearby transmit or trap.The power output of attack reflector declines and communication link can not be operated, because the antenna near these can not provide overlay area accurately on the ground and in the air.Because some questions (such as, aeronautical dynamics constraint, visual appearance and control require) causes the implementation of traditional band large-scale metal structure of the inside antenna interference reduced on aircraft body not easily to realize.
Summary of the invention
The present invention is the system being configured to be provided by application controlled zero directional diagram airborne antenna function.Be coupled to transceiver antenna of the present invention can be arranged within closely on aircraft fuselage other transmit and receive antenna and operate in same frequency band.Specifically can in operative configuration, antenna radiation pattern changes to make it possible to control aerial radiation main beam direction in the scope of definition.This antenna system solves the problem of above-mentioned interference, signal strength signal intensity and structural limitations in the following manner: form transmitting (or reception) the aerial radiation beam shape away from emitter antenna, thus alleviate the interference of neighbouring reflector, promote performance of receiving system simultaneously, and the power reduction requirements of reflector without the need to running from neighbouring common location, altogether frequency band.
The invention provides omnidirectional's cover antenna with controllable elevation radiation diagram, thus the signal from the common location be installed on airborne platform, the altogether reflector of frequency band operation is reduced.In an embodiment, reception antenna be adapted to be by electrical down-tilting is combined with contrary mechanical updip, be oriented finger direction figure under the enhancing elevation plane at the dark zero point of neighbouring transmitting antenna reduce interference by producing to have.
Advantage of the present invention can also description below, find in accompanying drawing and claims.
Accompanying drawing explanation
Fig. 1 shows the airborne platform (fixed wing, but also can rotate) used together with this antenna.
Fig. 2 is the end view of airborne platform, shows the details of composed emission (TX)-reception (RX) antenna relative to the layout of other Special transmitting antennas be installed on body.
Fig. 3 is the block diagram representing the functional block being installed on carry-on special TX antenna and TX-RX antenna.
Fig. 4 is that combined machine tilts to tilt to realize the graphic representation of the TX-RX antenna relative to zero radiation diagram being installed on carry-on special TX antenna with electricity.
Fig. 5 shows antenna 3-D radiation diagram, and wherein the annulus at center represents the main lobe of antenna pattern.
Fig. 6 shows the antenna 3-D radiation diagram inclined slightly towards lower-left due to the mechanical tilt of antenna axis, and wherein the annulus at center represents the main lobe of antenna pattern.
Fig. 7 shows mechanical tilt due to antenna axis and the combined and antenna 3-D radiation diagram that is that incline slightly towards lower-left of the effect (lobe of bottommost is attenuated) tilted with electricity, and wherein the annulus at center represents the main lobe of antenna pattern.
Fig. 8 A and 8B provides the comparison of the elevation radiation pattern (2D) caused due to electricity inclination and mechanical tilt (combination).
Fig. 9 is because electricity tilts and the combination of mechanical tilt and the expression of directivity angle figure (2D) that causes, wherein provides overload protection at the dark zero point (deepnull) at-90 degree places to receiver, with the impact from neighbouring transmitting antenna.
Figure 10 A-10C provides the comparison of the azimuth radiation figure (2D) of the antenna caused due to electricity inclination, mechanical tilt and combination inclination.
Embodiment
Illustrate of the present invention for providing the system of the airborne antenna with controlled zero directional diagram (nullpattern) in Fig. 1-3.This system is embodied in tiltable antenna 14, and it is fixed on the bottom surface 16 of the fuselage of aircraft 10.As shown in the figure, antenna 14 is transmitting and receiving antennas, and it can be triband antenna.The existing Special transmitting antenna 12 distance S of it and aircraft 10.Antenna 14 is coupled to transceiver, and transceiver is configured to generate and is received in the signal in interested frequency range.This antenna ratio shields impact as used radome fairing (cowl) 17.The example of suitable transceiver is illustrated as transceiver 18 in figure 3.Transceiver 18 comprises S band receiver filter circuit, C band receiver filter circuit and S frequency band transmitting filter circuit.Special transmitting antenna 12 can be the combination of two or more antennas, such as antenna 12-1 and 12-2, and it is coupled to S band transmission filter circuit separately respectively, and one or both wherein can be total to frequency band with the transmitting of antenna 14 and/or frequency acceptance band.
As shown in Figure 4, antenna 14 can be configured with electricity inclination, mechanical tilt or both combinations.Antenna 14 is adapted to be by by combined to electrical down-tilting and the contrary mechanical updip interference reduced from the transmitting antenna being close to arrangement (such as, antenna 12).This configuration creates to have and is oriented finger direction figure (elevationplanedownwardpointingpattern) under the enhancing elevation plane at the dark zero point of neighbouring transmitting antenna.That is, by the selection of the configuration to the signal launched by transceiver 18, in Fig. 5,8A and 10A, illustrated that the electricity produced in radiation diagram tilts.This have adjusted lobe position in the mode shown in scheming.Achieved the mechanical tilt of antenna 14 by the mechanical movement of antenna 14, be connected to controllable motor as by by antenna 14.Mechanical tilt have also been changed lobe location to generate the radiation diagram shown in Fig. 6,8B and 10B.The combination of electrical down-tilting and contrary mechanical updip creates Fig. 7,9 and the radiation diagram shown in 10C.The combination producing zero direction figure substantially aimed at the direction of antenna 12 that visible mechanical tilt and electricity tilt from Fig. 9 and 10C.Therefore, disturb when have too much signal to strengthen or extra structural detail be not minimized.
Although describe the present invention with reference to specific embodiment, it should be understood that variant can be included as the aspect of the present invention described by claims.
Claims (5)
1. an airborne antenna system, comprising:
Omnidirectional's cover antenna of aircraft fuselage can be attached to; And
Be coupled to the transceiver of described antenna,
Wherein said antenna is arranged with the one or both in electricity inclination and mechanical tilt.
2. antenna system as claimed in claim 1, wherein, described antenna is arranged the one or both in electrical down-tilting and mechanical updip.
3. antenna system as claimed in claim 2, wherein, described antenna is configured to produce have and is oriented finger direction figure under the enhancing elevation plane at the dark zero point of the second neighbouring antenna, and described second antenna is also attached to described aircraft fuselage and separates with described cover antenna.
4. antenna system as claimed in claim 3, wherein, described second antenna is Special transmitting antenna.
5. antenna system as claimed in claim 3, wherein, described second antenna comprises multiple Special transmitting antenna.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361841799P | 2013-07-01 | 2013-07-01 | |
| US61/841,799 | 2013-07-01 | ||
| PCT/IB2014/001945 WO2015001425A2 (en) | 2013-07-01 | 2014-07-01 | Airborne antenna system with controllable null pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105264712A true CN105264712A (en) | 2016-01-20 |
Family
ID=52023553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480031159.8A Pending CN105264712A (en) | 2013-07-01 | 2014-07-01 | Airborne antenna system with controllable null pattern |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3017502B1 (en) |
| CN (1) | CN105264712A (en) |
| WO (1) | WO2015001425A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107278195A (en) * | 2016-11-04 | 2017-10-20 | 深圳市大疆创新科技有限公司 | Unmanned plane and antenna module |
| CN108475851A (en) * | 2016-06-07 | 2018-08-31 | 奥迪股份公司 | Motor vehicle with antenna assembly |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10305176B2 (en) * | 2014-05-20 | 2019-05-28 | University Of North Dakota | Conformal antennas for unmanned and piloted vehicles and method of antenna operation |
| US11239903B2 (en) | 2020-04-08 | 2022-02-01 | Sprint Communications Company L.P. | Uplink beamforming between an airborne transceiver and a terrestrial transceiver |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998048472A1 (en) * | 1997-04-18 | 1998-10-29 | Telefonaktiebolaget Lm Ericsson | A method for improving antenna performance parameters and an antenna arrangement |
| US20030052825A1 (en) * | 2001-09-17 | 2003-03-20 | Rao Barsur Rama | Spatial null steering microstrip antenna array |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7640016B2 (en) * | 1992-03-06 | 2009-12-29 | Aircell, Llc | Air-to-ground cellular network for deck-to-deck call coverage |
| US7109937B2 (en) * | 2004-11-29 | 2006-09-19 | Elta Systems Ltd. | Phased array planar antenna and a method thereof |
| WO2007055710A2 (en) * | 2004-12-20 | 2007-05-18 | Ems Technologies, Inc. | Electronic pitch over mechanical roll antenna |
| US9306657B2 (en) * | 2005-04-08 | 2016-04-05 | The Boeing Company | Soft handoff method and apparatus for mobile vehicles using directional antennas |
| US7606528B2 (en) * | 2006-11-10 | 2009-10-20 | Northrop Grumman Corporation | Distributed conformal adaptive antenna array for SATCOM using decision direction |
-
2014
- 2014-07-01 WO PCT/IB2014/001945 patent/WO2015001425A2/en active Application Filing
- 2014-07-01 EP EP14811958.9A patent/EP3017502B1/en active Active
- 2014-07-01 CN CN201480031159.8A patent/CN105264712A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998048472A1 (en) * | 1997-04-18 | 1998-10-29 | Telefonaktiebolaget Lm Ericsson | A method for improving antenna performance parameters and an antenna arrangement |
| US20030052825A1 (en) * | 2001-09-17 | 2003-03-20 | Rao Barsur Rama | Spatial null steering microstrip antenna array |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475851A (en) * | 2016-06-07 | 2018-08-31 | 奥迪股份公司 | Motor vehicle with antenna assembly |
| CN108475851B (en) * | 2016-06-07 | 2020-06-23 | 奥迪股份公司 | Motor vehicle with antenna device |
| CN107278195A (en) * | 2016-11-04 | 2017-10-20 | 深圳市大疆创新科技有限公司 | Unmanned plane and antenna module |
| CN107278195B (en) * | 2016-11-04 | 2019-10-18 | 深圳市大疆创新科技有限公司 | Unmanned plane and antenna module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015001425A2 (en) | 2015-01-08 |
| EP3017502B1 (en) | 2019-08-21 |
| EP3017502A2 (en) | 2016-05-11 |
| WO2015001425A3 (en) | 2015-05-07 |
| WO2015001425A8 (en) | 2015-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220247076A1 (en) | High Gain Relay Antenna System With Multiple Passive Reflect Arrays | |
| EP3348004B1 (en) | Process and system for communicating with user antenna phased arrays | |
| US9160064B2 (en) | Spatially diverse antennas for a headset computer | |
| JP7372179B2 (en) | Components of broadband antenna systems in rotorcraft | |
| US9213097B2 (en) | Aircraft comprising an onboard weather radar antenna provided with inclined panels | |
| CN105745784B (en) | The antenna house of the regional area of radio signal decaying with reduction | |
| CN103392263A (en) | Antenna system | |
| US20180097282A1 (en) | Omnidirectional antenna using rotation body | |
| CN105264712A (en) | Airborne antenna system with controllable null pattern | |
| CN202817197U (en) | Double-frequency linear polarized conformal antenna | |
| CN105680183B (en) | Battle array is stitched in waveguide and micro-strip fluting array two-band is total to aperture combined antenna array | |
| US20150214613A1 (en) | Antenna assembly with shielding structure | |
| CN104270165B (en) | The integrated system of air traffic CAS and S mode answering machine radio-frequency receiving-transmitting | |
| US7847751B2 (en) | Planar broadband antenna | |
| CN207442848U (en) | Movable equipment | |
| Yeo et al. | Data-link Antenna Design for Drone Control | |
| CN110889220B (en) | Novel ADS-B, TCAS antenna sharing method | |
| Guang-yu et al. | Analysis of radiation characteristics of the airborne VHF antenna | |
| RU2408140C2 (en) | Electronic antenna assembly with controlled configuration of directivity pattern | |
| CN114527432A (en) | Distributed airborne electronic countermeasure system architecture | |
| RU2517363C2 (en) | Airborne antenna feeder system | |
| CN118198708A (en) | Active shortwave antenna array applied to airborne platform | |
| CN109494482A (en) | High-gain oriented antenna equipment | |
| Wang et al. | Integrated multifunction antenna for mobile terrestrial and satellite communications | |
| RU2002128378A (en) | METHOD OF ENSURING CONTINUOUS BATTLE CONTROL AND COMMUNICATION BETWEEN MOBILE OBJECTS AND RADIO MEANS OF BATTLE CONTROL AND COMMUNICATION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |