EP1263086B1 - Schlitzstrahlerelement - Google Patents
Schlitzstrahlerelement Download PDFInfo
- Publication number
- EP1263086B1 EP1263086B1 EP02007598A EP02007598A EP1263086B1 EP 1263086 B1 EP1263086 B1 EP 1263086B1 EP 02007598 A EP02007598 A EP 02007598A EP 02007598 A EP02007598 A EP 02007598A EP 1263086 B1 EP1263086 B1 EP 1263086B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slot
- stub
- waveguide
- antenna element
- element according
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/22—Longitudinal slot in boundary wall of waveguide or transmission line
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0037—Particular feeding systems linear waveguide fed arrays
- H01Q21/0043—Slotted waveguides
Definitions
- the invention relates to a slot radiator element according to claim 1.
- Slot radiator elements as often used in high-frequency technology as an antenna include a longitudinally extending waveguide with at least one slot for emitting a portion of a guided in the waveguide electromagnetic wave. In the area of the slot is often one from one conductive material existing pin as means for exciting the radiation of Waveguide shaft provided from the slot. Such a slot radiator is e.g. out DE 1 959 159 U known. In the equivalent circuit diagram, this represents a first cross-connected Capacitance C1 on the waveguide.
- the object of the invention is to provide an improved slot radiator element.
- the coupling means by a at the with the Slit running a broadside laterally adjacent to the slot arranged pin formed and with its center over the lateral boundary arranged the bridge.
- the slot of the waveguide is shown as a series resonant circuit, the stepped recess one to the Series resonant circuit connected in parallel negative capacity.
- Negative and positive capacity can be explained with the help of field theory. So represents the coupling agent in the region of the slot is a positive capacity.
- Field Theory the effect of the coupling agents can be seen as field distortion, predominantly explain the electrical field of the wire. This leads to an increase in the Field energy around the coupling agent, e.g. a pen around. In a wiring diagram this effect can be represented as capacity. Because the concentration of the electric Field is increased, the capacity is positive.
- Substitute circuit diagram can also be displayed as a capacity.
- stepped depression of the web the web is reduced, which is a reduction the field energy causes.
- the capacity thus has a negative value.
- the means for excitation the radiation of the waveguide wave by a laterally disposed next to the slot Pen formed of a conductive material is provided.
- the pin with respect to the longitudinal direction of the waveguide in the amount of Center of the slot arranged.
- the step-shaped recess has a rectangular cross section with a length D and a height H parallel to and / or perpendicular to the longitudinal direction of the web.
- the step-shaped recess and the slot are advantageous with respect to the longitudinal direction of the waveguide centered to each other.
- the width B of the web is advantageously greater than the width b of the slot.
- Fig. 1a and 1b show fragmentary slot radiating element in the form of a rectangular ridge waveguide with two broad sides 4, 9 as well as two narrow sides 7, 8.
- the waveguide 1 is provided with a slot 2, which is in Longitudinal direction of the waveguide 1 extends.
- the slot 2 serves to emit a Part of an electromagnetic wave guided in the waveguide.
- the length of the Slot 2 is half the wavelength in the illustrated embodiment ⁇ / 2 of the operating frequency, i. the resonant frequency of the slot radiator element.
- another (second) broad side 9 is another (second) broad side 9, on the inside of the slot 2 opposite one also provided in the longitudinal direction of the waveguide 1 extending web 3 is.
- a pin 5 is arranged from an electrically conductive material, by which means for exciting the radiation of the waveguide wave from the Slot 2 are formed.
- the pin 5 causes an asymmetrical distortion of the field distribution in the waveguide in the region of the slot, which makes it the waveguide wave is allowed to exit from the slot 2 for radiation. Without such means to Excitation of the radiation would be a rectangular ridge waveguide of the type shown, in which both the slot 2 and the web 3 run in the center of the waveguide, do not radiate.
- the pin 5 or generally speaking, the means for exciting the radiation of the waveguide wave from the slot 2, a capacitance C 1 , which is connected in parallel to a series resonant circuit LCR representing the slot 2.
- the capacitance C 1 means a load of this series resonant circuit LCR with a capacitive reactance.
- a stepped recess 6 is formed on the web 3 in the region of the slot 2.
- This step-shaped depression 6 represents for the wave propagating in the waveguide 1 a second cross-connected capacitance C 2 which at least partially compensates for the first cross-connected capacitance C 1 represented by the pin 5.
- the stepped recess 6 has seen from the side a rectangular shape with a length D and a height H. Viewed transversely to the longitudinal direction of the waveguide 1, the step-shaped recess 6, the width of which corresponds to the web 3, a likewise rectangular cross-section.
- the step-shaped recess 6 thus has a resulting negative capacitance, which is the (positive) capacity of the means, ie the pin 5, for exciting the radiation from the slot 2 just opposite.
- the means 5 for the radiation from the slot 2 forming pin 5 is with respect to the Longitudinal direction of the waveguide 1 is arranged centrally on the slot 2.
- the bridge has 3 transverse to the longitudinal direction of the waveguide 1 seen a rectangular cross section, wherein the width B of the web 3, and thus also the step-shaped recess 6, greater than the width b of the slot 2 is.
- the laterally arranged next to the slot 2 Pin 5 is centered about the lateral boundary of the web 3.
- the step-shaped recess 6 is with respect to the longitudinal direction of the Waveguide 1 is arranged centrally on the slot 2.
- the resulting effect of the combined arrangement of the means of radiation the waveguide shaft forming pin 5 and formed by the recess 6 Step form consists in an excitation of the radiation of the waveguide shaft from the Slot 2 without a load on the circuit with a capacitive reactance.
Landscapes
- Waveguide Aerials (AREA)
- Catching Or Destruction (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
- mindestens einen in der Mitte der einen Breitseite befindlichen Schlitz,
- einen in der Mitte der Innenoberfläche der anderen Breitseite angeordneten rechteckigen Steg, wobei der Schlitz und der Steg sich jeweils entlang der Längsrichtung des Hohlleiters erstrecken,
- innerhalb des Steg-Hohlleiters angeordnete Kopplungsmittel welche den Schlitz zur Abstrahlung elektromagnetischer Energie anregen,
- auf der dem Schlitz zugewandten Oberfläche des Stegs ausgeführten Kompensationsmittel, welche die durch die Kopplungsmittel verursachte Fehlanpassung des Hohlleiters an den, den Hohlleiter mit elektromagnetischer Energie speisenden Generator kompensieren, wobei die Kompensationsmittel derart ausgeführt sind, dass der Steg im Bereich des Schlitzes eine stufenförmige Vertiefung aufweist.
- Fig. 1a
- in perspektivischer Seitenansicht einen Ausschnitt eines Schlitzstrahlerelements gemäß einem Ausführungsbeispiel der Erfindung;
- Fig. 1b
- eine Draufsicht des in Fig. 1a gezeigten Ausführungsbeispiels des erfindungsgemäßen Schlitzstrahlerelements; und
- Fig. 2
- ein Ersatzschaltbild des erfindungsgemäßen Schlitzstrahlerelements nach den Fig. 1a und 1b.
Claims (8)
- Schlitzstrahlerelement in Form eines rechteckigen Steg-Hohlleiters (1) umfassendmindestens einen in der Mitte der einen Breitseite (4) des rechleckigen Steg-Hohlleiters (1) befindlichen Schlitz (2),einen in der Mitte der Innenoberfläche der anderen Breitseite (9) des rechleckigen Steg-Hohlleiters (1) angeordneten rechteckigen Steg (3), wobei der Schlitz (2) und der Steg (3) sich jeweils entlang der Längsrichtung des Steg-Hohlleiters (1) erstrecken,innerhalb des Steg-Hohlleiters (1) angeordnete Kopplungsmittel.(5) welche den Schlitz (2) zur Abstrahlung elektromagnetischer Energie anregen,auf der dem Schlitz (2) zugewandten Oberfläche des Stegs (3) ausgeführte Kompensationsmittel (6), welche die durch die Kopplungsmittel (5) verursachte Fehlanpassung des Steg-Hohlleiters (1) an den, den Steg-Hohlleiter(1) mit elektromagnetischer Energie speisenden Generator kompensieren, wobei die Kompensationsmittel (6) derart ausgeführt sind, dass der Steg (3) im Bereich des Schlitzes (2) eine stufenförmige Vertiefung aufweist.
die Kopplungsmittel (5) durch einen an der mit dem Schlitz (2) ausgeführten einen Breitseite (4) seitlich neben dem Schlitz angeordneten Stift gebildet und mit ihrer Mitte über der seitlichen Begrenzung des Steges (3) angeordnet sind. - Schlitzstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass in einem Leitungsersatzschaltbild, in dem der Schlitz (2) des Steg-Hohlleiters (1) als Serienresonanzkreis (LCR) dargestellt ist, die stufenförmige Vertiefung (6) eine zu dem Serienresonanzkreis (LCR) parallel geschaltete negative Kapazität (C2) ist.
- Schlitzstrahlerelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Kopplungsmittel (5) durch einen seitlich neben dem Schlitz (2) angeordneten Stift aus einem leitfähigen Material gebildet sind
- Schlitzstrahlerelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Stift in Höhe der Mitte des Schlitzes (2) angeordnet ist.
- Schlitzstrahlerelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die stufenförmige Vertiefung (6) einen rechteckigen Querschnitt parallel und/oder senkrecht zur Längsrichtung des Steges (3) aufweist und eine Länge D und eine Höhe H hat.
- Schlitzstrahlerelement nach Anspruch 6, dadurch gekennzeichnet, dass bezüglich der Längsrichtung des Steg-Hohlleiters (1) die stufenförmige Vertiefung und der Schlitz (2) mittig zueinander angeordnet sind.
- Schlitzstrahlerelement nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass die Länge D und die Länge H der stufenförmigen Vertiefung (6) derart gewählt sind, dass gilt C1 + C2 = 0, wobei C1 die in einem Leitungsersatzschaltbild als Kapazität C1 darzustellenden Kopplungsmittel (5) und C2 die in einem Leitungsersatzschaltbild als negative Kapazität C2 darzustellenden stufenförmigen Vertiefung in dem Steg (3) ist.
- Schlitzstrahlerelement nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Breite B des Steges (3) größer als die Breite b des Schlitzes (2) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10126469A DE10126469A1 (de) | 2001-05-31 | 2001-05-31 | Schlitzstrahlerelement |
DE10126469 | 2001-05-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1263086A2 EP1263086A2 (de) | 2002-12-04 |
EP1263086A3 EP1263086A3 (de) | 2005-01-19 |
EP1263086B1 true EP1263086B1 (de) | 2005-12-28 |
Family
ID=7686729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02007598A Expired - Fee Related EP1263086B1 (de) | 2001-05-31 | 2002-04-04 | Schlitzstrahlerelement |
Country Status (4)
Country | Link |
---|---|
US (1) | US6954183B2 (de) |
EP (1) | EP1263086B1 (de) |
JP (1) | JP3995980B2 (de) |
DE (2) | DE10126469A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7224319B2 (en) * | 2005-01-07 | 2007-05-29 | Agc Automotive Americas R&D Inc. | Multiple-element beam steering antenna |
DE102006057144B4 (de) | 2006-12-01 | 2013-10-17 | Astrium Gmbh | Hohlleiter-Strahler |
EP2579769A1 (de) | 2010-06-08 | 2013-04-17 | Roche Diagnostics GmbH | Analytsensor mit schlitzantenne |
DE102011001569A1 (de) | 2011-03-25 | 2012-09-27 | Technische Universität Carolo-Wilhelmina Zu Braunschweig | Verfahren und Anordnung zum Modellieren von Antennen-Abstrahlcharakeristiken |
CN104505595B (zh) * | 2014-12-09 | 2017-04-19 | 中国电子科技集团公司第三十八研究所 | 宽带单腔波导缝隙谐振天线 |
CN109802240B (zh) * | 2018-12-29 | 2024-04-02 | 南京信息职业技术学院 | 一种基于矩形波导的圆极化缝隙天线 |
US11171399B2 (en) * | 2019-07-23 | 2021-11-09 | Veoneer Us, Inc. | Meandering waveguide ridges and related sensor assemblies |
CN113871858B (zh) * | 2021-09-27 | 2023-05-16 | 中国电子科技集团公司第三十八研究所 | 一种可扩展阵列的脊波导天线子阵及阵列 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2818565A (en) * | 1956-09-05 | 1957-12-31 | James S Ajioka | Slab excited continuous slot antenna |
US3015100A (en) * | 1957-03-20 | 1961-12-26 | Rotman Walter | Trough waveguide antennas |
US2948895A (en) * | 1957-06-21 | 1960-08-09 | Rca Corp | Slotted coupling device for waveguide |
US2981947A (en) * | 1957-09-24 | 1961-04-25 | Rca Corp | Coupling device for slot antenna |
DE1959159B2 (de) * | 1969-11-25 | 1972-03-09 | Pensenskij Kompressornyj Sawod | Gasgefeuerter kupolofen |
FR2555823B1 (fr) * | 1982-03-26 | 1987-07-17 | Thomson Csf | Dispositif d'excitation d'une fente non excentree taillee sur le grand cote d'un guide d'onde et antenne a fentes comportant un tel dispositif |
US4554550A (en) * | 1983-05-23 | 1985-11-19 | Hazeltine Corporation | Resonant waveguide aperture manifold |
US6201507B1 (en) * | 1998-04-09 | 2001-03-13 | Raytheon Company | Centered longitudinal shunt slot fed by a resonant offset ridge iris |
-
2001
- 2001-05-31 DE DE10126469A patent/DE10126469A1/de not_active Withdrawn
-
2002
- 2002-04-04 EP EP02007598A patent/EP1263086B1/de not_active Expired - Fee Related
- 2002-04-04 DE DE50205399T patent/DE50205399D1/de not_active Expired - Lifetime
- 2002-05-17 JP JP2002142958A patent/JP3995980B2/ja not_active Expired - Fee Related
- 2002-05-31 US US10/158,189 patent/US6954183B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2003032027A (ja) | 2003-01-31 |
EP1263086A2 (de) | 2002-12-04 |
US20030001789A1 (en) | 2003-01-02 |
EP1263086A3 (de) | 2005-01-19 |
DE10126469A1 (de) | 2002-12-12 |
JP3995980B2 (ja) | 2007-10-24 |
US6954183B2 (en) | 2005-10-11 |
DE50205399D1 (de) | 2006-02-02 |
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