EP0737371A1 - Planarantenne - Google Patents
PlanarantenneInfo
- Publication number
- EP0737371A1 EP0737371A1 EP95902093A EP95902093A EP0737371A1 EP 0737371 A1 EP0737371 A1 EP 0737371A1 EP 95902093 A EP95902093 A EP 95902093A EP 95902093 A EP95902093 A EP 95902093A EP 0737371 A1 EP0737371 A1 EP 0737371A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- planar antenna
- esp
- antenna according
- conductor
- diameter
- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
Definitions
- the invention relates to a planar antenna according to the preamble of claim 1.
- the currently known antenna systems for receiving satellite signals, in particular TV, Astra and DSR signals within the DBS band (Direct Broadcasting Satellite) from 11.70 Ghz to 12.50 Ghz for electronic communication media are based on the electromagnetic excitation of dipole groups, each in certain phases are fed to each other and thus generate linearly or circularly polarized radiation fields.
- Such planar antennas are usually implemented using triplate technology or microstrip technology.
- the planar antenna is followed by electronics, in particular a converter, which processes the signals depending on the application.
- planar antenna and electronics are usually connected by means of a hollow waveguide with capacitive coupling of the radiator sum signal.
- TERLAGEN individual assemblies are disproportionately large in order to achieve a sufficiently high reception or transmission power, so that the antenna becomes unnecessarily heavy and unwieldy, making the use of such radiator systems unsuitable for handheld applications.
- the manufacturing requirements with regard to the dimensions of the individual parts for the hollow waveguide used are very great, and the coupling of the signals between the planar antenna, hollow waveguide and electronics is problematic, so that even with small manufacturing deviations, the signals from one component to the next are insufficiently coupled. Noise adaptation by means of such a hollow waveguide is also not possible.
- the object of the invention is therefore to miniaturize a radiator system with planar antenna, coupling element and downstream electronics, which consists of parts that are simple and inexpensive to manufacture.
- the coupling element advantageously consists of only a few parts that are easy to manufacture. Due to the fixed galvanic coupling by means of such an electromagnetic aperture, the radiator system is particularly robust against mechanical forces and against contamination and is therefore excellently suitable for portable applications.
- the radiator system according to the invention depending on the design of the surface resonators, linearly or circularly polarized waves can be received or transmitted, as a result of which signals of various satellites can advantageously be received and transmitted.
- the surface resonators are either square or rectangular.
- the impedance matching of the components by means of the coupling element can advantageously be achieved relatively easily by changing the length and / or diameter of the sections AI, A2 and A3 of the inner and outer conductors.
- Advantageous dimensions can be determined with the aid of suitable numerical approximation methods, the dimensional changes and material changes of one part having an effect on the dimensions or material constants of the other parts to be selected.
- a good impedance and noise adaptation is obtained with the values for the coupling part determined in subclaim 11. With the values described, the radiator system is optimized for a frequency range of 11.70 - 12.50 GHz.
- the radiation system can be installed quickly and easily. No additional parts are required to hold the inner conductor parts and washers in place. Furthermore, the numerical method is simplified by dividing the coupling element into the three sections AI, A2 and A3, since only three characteristic impedances have to be taken into account in the calculation.
- An impedance matching can also be achieved in that the inner diameter of the outer conductor and the outer diameter of the inner conductor are selected to be constant, with adjacent dielectric ring disks with different ones being used at the same time Dielectric constants are arranged between the base plates of the planar antenna and the downstream electronics. The thickness of the respective ring disk and its material determine the wave resistance of the section. The optimal values can be calculated using a suitable numerical method.
- planar antenna and the downstream electronics can be produced relatively inexpensively and easily, which results in a large cost advantage, especially with large quantities.
- the mechanical carrier plate stabilizes the radiator system and advantageously seals the coupling part and the basic levels from the outside world.
- rectangular or square surface resonators can be used, with the square surface resonators additional parasitic radiator elements in the form of strip conductors being arranged parallel to two opposite edges of a surface resonator at a certain distance from each other .
- the distance to be selected depends on for. which frequencies or vibration conditions the surface resonator should be optimized or adjusted.
- the surface resonators and the parallel strip conductors can advantageously be produced by means of a laser beam, a rectangular surface being first worked out using a lithographic process. The laser beam can then be used to precisely tune or shift the frequency Area resonators of a group are made to each other.
- a square surface resonator can also be frequency-matched by means of two identical, in particular capacitive, dummy switching elements which are connected with one pole to the intersection of the surface diagonals and with their other pole are each connected to one edge of the surface resonator, the two edges having to lie opposite one another so that a symmetry is achieved which satisfies the vibration conditions.
- the blind switch elements e.g. capacitors
- inexpensive tuning can be achieved, which can easily be carried out by hand.
- slots in the middle of two opposite edges can be produced by means of a laser or etching process, which make it possible to transmit or receive circularly polarized waves even with square surface resonators.
- a slot width of 0.025 of the line wavelength With a slot width of 0.025 of the line wavelength, a mode overlay is achieved to achieve circular polarization with an ellipticity of less than 1 dB over the frequency range of the planar antenna.
- the dimensions of the slots must be the same.
- the length of the slots in the direction of the center of the surface resonator determines the frequency which is received / transmitted by the surface resonator.
- the additional dielectric thin layer additionally achieves an impedance matching between the surface resonators and the radiation space, as a result of which the gain of the antenna is advantageously increased.
- the surface resonators, the feed network and the coupling part are also advantageously protected against external influences, such as dirt and water.
- Fig. 1 is a plan view of a planar antenna with an array of surface resonators, which are connected in phase with a feed point by means of a feed network.
- Fig. 2 is a side view of the coupling element.
- Fig. 3 is a side view of the coupling element.
- Fig. 4 ent a Resonatoreleele with parallel strip conductors.
- Fig. 5 A surface resonator element with dummy switching elements.
- Fig. 6 A surface resonator element with slot line element.
- FIG. 1 shows a plan view of a planar antenna (1).
- the planar antenna (1) is produced using microstrip technology, a base plate (2) made of RT / duroid 5880, which is coated on its flat sides with a thin copper layer (3, 4) with a layer thickness of 17.5 ⁇ m.
- the planar antenna (1) has a plurality of surface resonators (5) which are connected in phase with a feed point (7) by means of a feed network (6). Area resonators (5), feed network (6) and the feed point (7) are produced by means of a common photolithographic process.
- the side of the planar antenna (1) facing away from the radiation space forms the ground plane (8) of the planar antenna (1).
- the feed network (3) and the surface resonators are matched to one another in terms of impedance by means of thin strip lines (9) and are connected to the corners of the surface resonators (5) at an angle of 45 degrees to the extended surface resonator edges (10).
- connection point (11) of a downstream electronics (12) takes place as shown in Figures 2 and 3 by means of a coupling element (13).
- the downstream electronics (12) are also produced using microstrip technology and have their ground plane on the side facing the planar antenna (1)
- the coupling element (13) consists of the three sections AI, A2 and A3 which form the characteristic impedances ZI, Z2 and Z3.
- (17) is a socket which comes into electrical connection with the ground planes (8, 14) by means of a press connection when the emitter system is installed on its end faces (18). Between the ground planes
- the inner conductor consists of the two rotationally symmetrical parts
- the outer diameter (D3) of the one outer inner conductor part (21) is equal to the inner diameter of the bore (22) of the middle section part (23).
- the other outer inner conductor part (24) has a smaller diameter (Dl) than the molded middle inner conductor part (23).
- An annular air gap (28) is provided between the central inner conductor part (23) and the outer conductor (17).
- the sum of the lengths of sections AI, A2 and A3 corresponds to the distance between the two base plates (2.29).
- the two outer inner conductor parts (21, 24) pass through the base plates (2, 29) and are soldered to the feed point (7) or to the connection point (16).
- the bore (22) of the central inner conductor part (23) is so deep that, taking into account the manufacturing tolerances, there is always an air gap (L) between the end face of the outer inner conductor part (21) and the bottom of the bore (22).
- a dielectric thin film (35) is arranged in parallel at a distance of half a free space wavelength, the dielectric constant of which is selected so that the radiation space and planar antenna (1) are matched to one another in terms of impedance. This is achieved when the thickness of the dielectric layer is approximately 0.6 to 0.9 mm and the dielectric constant is 2.05 to 4.
- FIGS. 4 and 5 show special embodiments of the surface resonators (5).
- FIG. 4 shows a square surface resonator (5) which has strip conductors (31) which are arranged in parallel at a distance (A) on its edges (30) running parallel to the Y axis and which are parasitic Represent radiator elements.
- the stripline (31) are used for mode adjustment.
- FIG. 5 shows a square surface resonator (5), at the center (32) of which two capacitive dummy switching elements (33) (capacitors) are connected. With their other poles (34), the dummy switching elements (33) are connected to opposite edges (30) of the surface resonator (5).
- Figure 6 shows a square surface resonator (5), on the edges (30) in the direction of the center (32) two slots (36) with the length (SA) and the width (SB) are incorporated.
Landscapes
- Waveguide Aerials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Support Of Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4340825 | 1993-12-01 | ||
DE4340825A DE4340825A1 (de) | 1993-12-01 | 1993-12-01 | Planare Strahleranordnung für den Direktempfang der TV-Signale des direktstrahlenden Satellitensystems TDF 1/2 |
PCT/EP1994/003957 WO1995015591A1 (de) | 1993-12-01 | 1994-11-29 | Planarantenne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0737371A1 true EP0737371A1 (de) | 1996-10-16 |
EP0737371B1 EP0737371B1 (de) | 1998-07-22 |
Family
ID=6503832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95902093A Revoked EP0737371B1 (de) | 1993-12-01 | 1994-11-29 | Planarantenne |
Country Status (25)
Country | Link |
---|---|
US (1) | US5777584A (de) |
EP (1) | EP0737371B1 (de) |
JP (1) | JPH09509796A (de) |
KR (1) | KR960706699A (de) |
CN (1) | CN1051408C (de) |
AT (1) | ATE168824T1 (de) |
AU (1) | AU690942B2 (de) |
BG (1) | BG100628A (de) |
CA (1) | CA2177954C (de) |
CZ (1) | CZ285794B6 (de) |
DE (2) | DE4340825A1 (de) |
DK (1) | DK0737371T3 (de) |
ES (1) | ES2122517T3 (de) |
FI (1) | FI962308A7 (de) |
GE (1) | GEP19991669B (de) |
HR (1) | HRP940969A2 (de) |
HU (1) | HU216219B (de) |
IL (1) | IL111827A0 (de) |
NO (1) | NO962222L (de) |
PL (1) | PL175450B1 (de) |
SK (1) | SK70096A3 (de) |
TR (1) | TR28051A (de) |
TW (1) | TW293188B (de) |
WO (1) | WO1995015591A1 (de) |
ZA (1) | ZA949494B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4442894A1 (de) * | 1994-12-02 | 1996-06-13 | Dettling & Oberhaeusser Ing | Empfangsmodul für den Empfang höchstfrequenter elektromagnetischer Richtstrahlungsfelder |
DE19615497A1 (de) * | 1996-03-16 | 1997-09-18 | Pates Tech Patentverwertung | Planarer Strahler |
FR2757315B1 (fr) * | 1996-12-17 | 1999-03-05 | Thomson Csf | Antenne reseau imprimee large bande |
DE19712510A1 (de) * | 1997-03-25 | 1999-01-07 | Pates Tech Patentverwertung | Zweilagiger Breitband-Planarstrahler |
US6285323B1 (en) | 1997-10-14 | 2001-09-04 | Mti Technology & Engineering (1993) Ltd. | Flat plate antenna arrays |
IL121978A (en) * | 1997-10-14 | 2004-05-12 | Mti Wireless Edge Ltd | Flat plate antenna arrays |
FR2811142B1 (fr) * | 2000-06-29 | 2002-09-20 | Thomson Multimedia Sa | Dispositif d'emission et/ou de reception d'ondes electromagnetiques alimente par un reseau realise en technologie microruban |
DE102004037986A1 (de) * | 2004-08-05 | 2006-03-16 | Gerhard Schüle | Kartenbogen |
CN101877428B (zh) * | 2009-12-16 | 2013-03-13 | 北京星正通信技术有限责任公司 | Ka平板天线 |
US11482795B2 (en) * | 2020-01-16 | 2022-10-25 | Raytheon Company | Segmented patch phased array radiator |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921177A (en) * | 1973-04-17 | 1975-11-18 | Ball Brothers Res Corp | Microstrip antenna structures and arrays |
US4386357A (en) * | 1981-05-21 | 1983-05-31 | Martin Marietta Corporation | Patch antenna having tuning means for improved performance |
US4686535A (en) * | 1984-09-05 | 1987-08-11 | Ball Corporation | Microstrip antenna system with fixed beam steering for rotating projectile radar system |
EP0200819A3 (de) * | 1985-04-25 | 1987-12-09 | Robert Bosch Gmbh | Array-Antenne |
JPS6248103A (ja) * | 1985-08-27 | 1987-03-02 | Matsushita Electric Works Ltd | マイクロストリツプラインアンテナ |
US4835540A (en) * | 1985-09-18 | 1989-05-30 | Mitsubishi Denki Kabushiki Kaisha | Microstrip antenna |
US5087920A (en) * | 1987-07-30 | 1992-02-11 | Sony Corporation | Microwave antenna |
US4973972A (en) * | 1989-09-07 | 1990-11-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Adminstration | Stripline feed for a microstrip array of patch elements with teardrop shaped probes |
US5376942A (en) * | 1991-08-20 | 1994-12-27 | Sumitomo Electric Industries, Ltd. | Receiving device with separate substrate surface |
DE4130477A1 (de) * | 1991-09-13 | 1993-03-18 | Rbm Elektronik Automation Gmbh | Verfahren zur signaldetektion informationsbehafteter elektromagnetischer felder |
DE4138424A1 (de) * | 1991-11-22 | 1993-05-27 | Lutz Dr Ing Habil Rothe | Anordnung zum empfang gerichteter hoch- und hoechstfrequenter strahlungsfelder |
DE4239597C2 (de) * | 1991-11-26 | 1999-11-04 | Hitachi Chemical Co Ltd | Ebene Antenne mit dualer Polarisation |
JP2840493B2 (ja) * | 1991-12-27 | 1998-12-24 | 株式会社日立製作所 | 一体型マイクロ波回路 |
US5309164A (en) * | 1992-04-13 | 1994-05-03 | Andrew Corporation | Patch-type microwave antenna having wide bandwidth and low cross-pol |
SG47560A1 (en) * | 1992-04-13 | 1998-04-17 | Andrew Corp | Patch-type microwave antenna having wide bandwidth and low cross-pol |
-
1993
- 1993-12-01 DE DE4340825A patent/DE4340825A1/de not_active Withdrawn
-
1994
- 1994-11-29 KR KR1019960702884A patent/KR960706699A/ko not_active Ceased
- 1994-11-29 GE GEAP19943212A patent/GEP19991669B/en unknown
- 1994-11-29 AT AT95902093T patent/ATE168824T1/de not_active IP Right Cessation
- 1994-11-29 ZA ZA949494A patent/ZA949494B/xx unknown
- 1994-11-29 JP JP7515389A patent/JPH09509796A/ja not_active Ceased
- 1994-11-29 ES ES95902093T patent/ES2122517T3/es not_active Expired - Lifetime
- 1994-11-29 WO PCT/EP1994/003957 patent/WO1995015591A1/de not_active Application Discontinuation
- 1994-11-29 US US08/652,454 patent/US5777584A/en not_active Expired - Fee Related
- 1994-11-29 DE DE59406523T patent/DE59406523D1/de not_active Revoked
- 1994-11-29 CA CA002177954A patent/CA2177954C/en not_active Expired - Fee Related
- 1994-11-29 CN CN94194364A patent/CN1051408C/zh not_active Expired - Fee Related
- 1994-11-29 AU AU11084/95A patent/AU690942B2/en not_active Ceased
- 1994-11-29 SK SK700-96A patent/SK70096A3/sk unknown
- 1994-11-29 EP EP95902093A patent/EP0737371B1/de not_active Revoked
- 1994-11-29 FI FI962308A patent/FI962308A7/fi unknown
- 1994-11-29 CZ CZ961588A patent/CZ285794B6/cs not_active IP Right Cessation
- 1994-11-29 HU HU9601501A patent/HU216219B/hu not_active IP Right Cessation
- 1994-11-29 DK DK95902093T patent/DK0737371T3/da active
- 1994-11-30 IL IL11182794A patent/IL111827A0/xx active IP Right Grant
- 1994-12-01 TR TR01247/94A patent/TR28051A/xx unknown
- 1994-12-01 HR HRP4340825.7A patent/HRP940969A2/xx not_active Application Discontinuation
-
1995
- 1995-03-25 TW TW084102922A patent/TW293188B/zh active
-
1996
- 1996-05-30 NO NO962222A patent/NO962222L/no not_active Application Discontinuation
- 1996-05-31 PL PL94314798A patent/PL175450B1/pl unknown
- 1996-05-31 BG BG100628A patent/BG100628A/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9515591A1 * |
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