EP1263086A2 - Schlitzstrahlerelement - Google Patents
Schlitzstrahlerelement Download PDFInfo
- Publication number
- EP1263086A2 EP1263086A2 EP02007598A EP02007598A EP1263086A2 EP 1263086 A2 EP1263086 A2 EP 1263086A2 EP 02007598 A EP02007598 A EP 02007598A EP 02007598 A EP02007598 A EP 02007598A EP 1263086 A2 EP1263086 A2 EP 1263086A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- slot
- waveguide
- web
- radiator 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.)
- Granted
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 they are often used as an antenna in high-frequency technology are comprised of a waveguide extending in a longitudinal direction with at least one slot for radiating a part of a guided in the waveguide electromagnetic wave.
- a slot radiator is e.g. out DE-GM 1 959 159 known.
- this represents a first cross-connected Capacitance C1 on the waveguide.
- the object of the invention is to provide an improved slot radiator element.
- Negative and positive capacities can be explained with the help of field theory. So the coupling agent in the area of the slot represents a positive capacitance the effect of the coupling agents as field distortion can be predominantly explain the electrical field of the line. This leads to an increase in Field energy around the coupling agent, e.g. a pen around. In a line diagram this effect can be represented as a capacity. Because the concentration of the electrical Field is increased, the capacity is positive.
- the web on the broad side of the waveguide opposite the slot is in one Equivalent circuit diagram can also be represented as a capacity.
- the web is reduced, which is a decrease field energy.
- the capacity therefore has a negative value.
- the means for excitation the radiation of the waveguide shaft by a side arranged next to the slot Pen formed from a conductive material.
- the pin is preferably at the level of the longitudinal direction of the waveguide Arranged in the middle of the slot.
- the step-shaped depression has a rectangular cross section with a length D and a height H parallel and / or perpendicular to the longitudinal direction of the web.
- the step-shaped depression and the slot are advantageous with regard to the longitudinal direction of the waveguide arranged in the middle of each other.
- the width B of the web is advantageously greater than the width b of the slot.
- the waveguide 1a and 1b show sections of slit beam element in the form of a rectangular ridge waveguide with two broad sides 4, 9 and two narrow sides 7, 8.
- the waveguide 1 On its one (First) broadside 4, the waveguide 1 is provided with a slot 2, which is in Longitudinal direction of the waveguide 1 extends.
- the slot 2 is used 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 working frequency, i.e. the resonance frequency of the slot radiator element.
- the first broad side 4 of the rectangular waveguide is another (Second) broadside 9, on the inside of which the slot 2 is opposite web 3 also extending in the longitudinal direction of the waveguide 1 is provided is.
- a pin 5 made of an electrically conductive material is arranged, by what means to excite 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 area of the slot, making it the waveguide shaft is allowed to emerge from the slot 2 for radiation. Without such means for Excitation of the radiation would be a rectangular ridge waveguide of the type shown, where both the slot 2 and the web 3 run in the middle of the waveguide, do not blast.
- the pin 5 forms 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 resonance circuit LCR representing the slot 2.
- the capacitance C 1 means that this series resonant circuit LCR is loaded with a capacitive reactance.
- a step-shaped depression 6 is formed on the web 3 in the region of the slot 2.
- this step-shaped depression 6 represents 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 depression 6 has a rectangular shape with a length D and a height H. Seen transversely to the longitudinal direction of the waveguide 1, the stepped depression 6, the width of which corresponds to that of the web 3, also has a rectangular cross section.
- the step-shaped depression 6 thus has a resulting negative capacitance which is just opposite to the (positive) capacitance of the means, ie the pin 5, for stimulating the radiation from the slot 2.
- the pin 5 forming the means for radiation from the slot 2 is relative to the
- the longitudinal direction of the waveguide 1 is arranged centrally on the slot 2.
- the web 3 has seen rectangular to the longitudinal direction of the waveguide 1, a rectangular cross section, the width B of the web 3, and thus also that of the step-shaped recess 6, is greater than the width b of the slot 2.
- the one next to the slot 2 The center of pin 5 is approximately above the lateral boundary of the web 3.
- the step-shaped recess 6 is with respect to the longitudinal direction of the Waveguide 1 arranged centrally on the slot 2.
- the resulting effect of the combined arrangement of the radiation means the waveguide shaft forming pin 5 and that formed by the recess 6 Step form consists in an excitation of the radiation of the waveguide wave from the Slot 2 without loading the circuit with a capacitive reactance.
Landscapes
- Waveguide Aerials (AREA)
- Catching Or Destruction (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
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,
- im Bereich des Schlitzes angeordnete Kopplungsmittel, insbesondere einen Stift, 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 (9)
- Schlitzstrahlerelement in Form eines rechteckigen Hohlleiters (1) umfassendmindestens einen in der Mitte der einen Breitseite (4) befindlichen Schlitz (2),einen in der Mitte der Innenoberfläche der anderen Breitseite (9) angeordneten rechteckigen Steg (3), wobei der Schlitz (2) und der Steg (3) sich jeweils entlang der Längsrichtung des Hohlleiters (1) erstrecken,im Bereich des Schlitzes (2) angeordnete Kopplungsmittel (5), insbesondere einen Stift, welche den Schlitz (2) zur Abstrahlung elektromagnetischer Energie anregen,auf der dem Schlitz (2) zugewandten Oberfläche des Stegs (3) ausgeführten Kompensationsmittel (6), welche die durch die Kopplungsmittel (5) verursachte Fehlanpassung des Hohlleiters (1) an den, den 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.
- Schlitzstrahlerelement nach Anspruch 1, dadurch gekennzeichnet, dass in einem Leitungsersatzschaltbild, in dem der Schlitz (2) des 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 Anspruch 3, dadurch gekennzeichnet, dass der Stift in Höhe der Mitte des Schlitzes (2) angeordnet ist.
- Schlitzstrahlerelement nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass der Stift mit seiner Mitte im wesentlich über der seitlichen Begrenzung des Steges (3) 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 Hohlleiters (1) die stufenförmige Vertiefung und der Schlitz (2) mittig zueinander angeordnet sind.
- Schlitzstrahlerelement nach einem der Ansprüche 6 oder 7, 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 true EP1263086A2 (de) | 2002-12-04 |
EP1263086A3 EP1263086A3 (de) | 2005-01-19 |
EP1263086B1 EP1263086B1 (de) | 2005-12-28 |
Family
ID=7686729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02007598A Expired - Lifetime 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) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006057144A1 (de) * | 2006-12-01 | 2008-07-31 | Astrium Gmbh | Hohlleiter-Strahler, insbesondere für Synthetik-Apertur-Radar-Systeme |
WO2011154372A1 (de) | 2010-06-08 | 2011-12-15 | Roche Diagnostics Gmbh | Analytsensor mit schlitzantenne |
CN109802240A (zh) * | 2018-12-29 | 2019-05-24 | 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 |
Families Citing this family (5)
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 |
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 |
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 |
Citations (3)
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 |
DE3310531A1 (de) * | 1982-03-26 | 1986-04-24 | Thomson-Csf, Paris | Vorrichtung zur anregung eines schlitzes, der nicht-exzentrisch an der hauptseite eines wellenleiters eingeschnitten ist, und mit einer solchen vorrichtung ausgeruestete schlitzantenne |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 - Lifetime
- 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
Patent Citations (3)
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 |
DE3310531A1 (de) * | 1982-03-26 | 1986-04-24 | Thomson-Csf, Paris | Vorrichtung zur anregung eines schlitzes, der nicht-exzentrisch an der hauptseite eines wellenleiters eingeschnitten ist, und mit einer solchen vorrichtung ausgeruestete schlitzantenne |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006057144A1 (de) * | 2006-12-01 | 2008-07-31 | Astrium Gmbh | Hohlleiter-Strahler, insbesondere für Synthetik-Apertur-Radar-Systeme |
US8493275B2 (en) | 2006-12-01 | 2013-07-23 | Astrium Gmbh | Waveguide radiator, especially for synthetic aperture radar systems |
DE102006057144B4 (de) * | 2006-12-01 | 2013-10-17 | Astrium Gmbh | Hohlleiter-Strahler |
WO2011154372A1 (de) | 2010-06-08 | 2011-12-15 | Roche Diagnostics Gmbh | Analytsensor mit schlitzantenne |
CN109802240A (zh) * | 2018-12-29 | 2019-05-24 | 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 |
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 |
Also Published As
Publication number | Publication date |
---|---|
EP1263086A3 (de) | 2005-01-19 |
US6954183B2 (en) | 2005-10-11 |
EP1263086B1 (de) | 2005-12-28 |
JP3995980B2 (ja) | 2007-10-24 |
US20030001789A1 (en) | 2003-01-02 |
JP2003032027A (ja) | 2003-01-31 |
DE50205399D1 (de) | 2006-02-02 |
DE10126469A1 (de) | 2002-12-12 |
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