EP1263086B1 - Slot antenna - Google Patents
Slot antenna 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 6
- 239000007822 coupling agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000005290 field theory Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
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)
- Respiratory Apparatuses And Protective Means (AREA)
- Catching Or Destruction (AREA)
Description
Die Erfindung betrifft ein Schlitzstrahlerelement nach dem Anspruch 1.The invention relates to a slot radiator element according to
Schlitzstrahlerelemente, wie sie in der Hochfrequenztechnik als Antenne häufig verwendet werden, umfassen einen sich in einer Längsrichtung erstreckenden Hohlleiter mit mindestens einem Schlitz zur Abstrahlung eines Teils einer in dem Hohlleiter geführten elektromagnetischen Welle. Im Bereich des Schlitzes ist oft ein aus einem leitfähigen Material bestehender Stift als Mittel zur Anregung der Abstrahlung der Hohlleiterwelle aus dem Schlitz vorgesehen. Ein solcher Schlitzstrahler ist z.B. aus DE 1 959 159 U bekannt. Im Ersatzschaltbild repräsentiert dieser eine erste quergeschaltete Kapazität C1 am Hohlleiter.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.
Aus DE 33 10 531 A1, US 2,818,565 und US 3,015,100 sind aber auch Schlitzstrahlerelemente bekannt, bei denen der Hohlleiter mit einem sich innen an der dem Schlitz gegenüberliegenden Wand in Längsrichtung des Hohlleiters erstreckenden Steg versehen ist.From DE 33 10 531 A1, US 2,818,565 and US 3,015,100 but are also slot radiator elements known in which the waveguide with an inside of the Slot opposite wall extending in the longitudinal direction of the waveguide Bridge is provided.
Im besonderen Fall eines symmetrisch aufgebauten Rechteck- Steghohlleiters, bei dem sowohl ein sich in Längsrichtung des Hohlleiters erstreckender Schlitz als auch der Steg bezüglich der Querausdehnung des Hohlleiters mittig angeordnet sind, ist der besagte aus einem leitfähigen Material bestehende Stift ein notwendiges Mittel zur Anregung der Abstrahlung der Hohlleiterwelle aus dem Schlitz. Das Wirkungsprinzip besteht in einer unsymmetrischen Verzerrung der Feldverteilung in dem Hohlleiter unter dem Schlitz. Die Schlitz-Stift-Kombination wirkt im Ersatzschaltbild wie ein quergeschalteter Kondensator parallel zu einem Serienresonanzkreis. Zur Kompensation kann in der Hohlleitertechnik eine induktive Blende eingesetzt werden. Deren Realisierung ist jedoch in der Praxis schwierig und sie bewirkt darüber hinaus selbst eine auf die Anregung der Abstrahlung rückwirkende Feldverzerrung.In the particular case of a symmetrical rectangular waveguide, with the both extending in the longitudinal direction of the waveguide slot and the web are arranged centrally with respect to the transverse extent of the waveguide, is said pin made of a conductive material is a necessary means for exciting the radiation of the waveguide wave from the slot. The principle of action consists in an asymmetrical distortion of the field distribution in the waveguide under the slot. The slot-pin combination acts as a substitute circuit diagram cross-switched capacitor in parallel with a series resonant circuit. For compensation can be used in waveguide an inductive diaphragm. their Realization, however, is difficult in practice and it also causes itself a retrospective field excitation based on the excitation of the radiation.
Die Aufgabe der Erfindung ist es, ein verbessertes Schlitzstrahlerelement zu schaffen.The object of the invention is to provide an improved slot radiator element.
Die Aufgabe wird erfindungsgemäß durch ein Schlitzstrahlerelement gemäß den
Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen des erfindungsgemäßen
Schlitzstrahlerelements sind Gegenstand von Unteransprüchen.The object is achieved by a slot radiator element according to the
Characteristics of
Durch die Erfindung wird ein Schlitzstrahlerelement in Form eines rechteckigen Steg-Hohlleiters, umfassend
- 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.
- at least one slot in the middle of one broadside,
- a rectangular ridge disposed in the center of the inner surface of the other broad side, the slit and the ridge extending respectively along the longitudinal direction of the waveguide,
- coupling means arranged within the web waveguide which excite the slot for the emission of electromagnetic energy,
- on the slot-facing surface of the web compensating means compensating for the mismatch caused by the coupling means of the waveguide on the, the waveguide feeding electromagnetic energy generator generator, wherein the compensation means are designed such that the web has a stepped recess in the region of the slot ,
Erfindungsgemäß sind die Kopplungsmittel durch einen an der mit dem Schlitz ausgeführten einen Breitseite seitlich neben dem Schlitz angeordneten Stift gebildet und mit ihrer Mitte über der seitlichen Begrenzung des Steges angeordnet.According to the invention 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.
Vorzugsweise stellt in einem Leitungsersatzschaltbild, in dem der Schlitz des Hohlleiters als Serienresonanzkreis dargestellt ist, die stufenförmige Vertiefung eine zu dem Serienresonanzkreis parallel geschaltete negative Kapazität dar.Preferably represents in a line equivalent circuit diagram in which 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 und positive Kapazität lassen sich mit Hilfe der Feldtheorie erklären. So stellt das Kopplungsmittel im Bereich des Schlitzes eine positive Kapazität dar. Feldtheoretisch läßt sich die Wirkung der Kopplungsmittel als Feldverzerrung, vorwiegend des elektrischen Feldes der Leitung erklären. Dabei kommt es zu einer Erhöhung der Feldenergie um das Kopplungsmittel, z.B. ein Stift herum. In einem Leitungsschaltbild kann diese Wirkung als Kapazität dargestellt werden. Da die Konzentration des elektrischen Feldes vergrößert wird, ist die Kapazität positiv.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.
Der Steg auf der dem Schlitz gegenüberliegenden Breitseite des Hohlleiters ist in einem Ersatzschaltbild ebenfalls als Kapazität darstellbar. Durch die erfindungsgemäße stufenförmige Vertiefung des Steges wird der Steg verkleinert, was eine Erniedrigung der Feldenergie bewirkt. Die Kapazität besitzt somit einen negativen Wert.The web on the slot opposite the broad side of the waveguide is in one Substitute circuit diagram can also be displayed as a capacity. By the invention stepped depression of the web, the web is reduced, which is a reduction the field energy causes. The capacity thus has a negative value.
Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Mittel zur Anregung der Abstrahlung der Hohlleiterwelle durch einen seitlich neben dem Schlitz angeordneten Stift aus einem leitfähigen Material gebildet.According to a preferred embodiment of the invention, the means for excitation the radiation of the waveguide wave by a laterally disposed next to the slot Pen formed of a conductive material.
Vorzugsweise ist der Stift bezüglich der Längsrichtung des Hohlleiters in Höhe der Mitte des Schlitzes angeordnet.Preferably, the pin with respect to the longitudinal direction of the waveguide in the amount of Center of the slot arranged.
In einer bevorzugten Ausführungsform weist die stufenförmige Vertiefung einen rechteckigen Querschnitt mit einer Länge D und einer Höhe H parallel und/oder senkrecht zur Längsrichtung des Steges auf. Die Länge D und die Länge H der stufenförmigen Vertiefung sind vorteilhaft derart gewählt, dass C1 + C2 = 0 gilt, wobei C1 die in einem Leitungsersatzschaltbild als Kapazität C1 darzustellenden Kopplungsmittel und C2 die in einem Leitungsersatzschaltbild als negative Kapazität C2 darzustellenden stufenförmigen Vertiefung in dem Steg ist.In a preferred embodiment, 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 length D and the length H of the step-shaped depression are advantageously selected such that C 1 + C 2 = 0, where C 1 is the coupling means to be represented in a line equivalent circuit as capacitance C 1 and C 2 is the negative capacitance C 2 in a line equivalent circuit diagram is to be represented step-shaped depression in the web.
Die stufenförmige Vertiefung und der Schlitz sind vorteilhaft bezüglich der Längsrichtung des Hohlleiters mittig zueinander angeordnet.The step-shaped recess and the slot are advantageous with respect to the longitudinal direction of the waveguide centered to each other.
Die Breite B des Steges ist vorteilhaft größer als die Breite b des Schlitzes.The width B of the web is advantageously greater than the width b of the slot.
Die Erfindung wird im Folgenden anhand von Zeichnungen näher erläutert. Es zeigen:
- 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.
- Fig. 1a
- in a perspective side view of a section of a slot radiator element according to an embodiment of the invention;
- Fig. 1b
- a plan view of the embodiment shown in Figure 1a of the slot radiator element according to the invention. and
- Fig. 2
- an equivalent circuit diagram of the slot radiator element according to the invention according to FIGS. 1a and 1b.
Fig. 1a und 1b zeigen ausschnittsweise Schlitzstrahlelement in Form eines Rechteck-Steghohlleiters
mit zwei Breitseiten 4, 9 sowie zwei Schmalseiten 7, 8. An seiner einen
(ersten) Breitseite 4 ist der Hohlleiter 1 mit einem Schlitz 2 versehen, der sich in
Längsrichtung des Hohlleiters 1 erstreckt. Der Schlitz 2 dient zur Abstrahlung eines
Teils einer in dem Hohlleiter geführten elektromagnetischen Welle. Die Länge des
Schlitzes 2 beträgt bei dem dargestellten Ausführungsbeispiel die halbe Wellenlänge
λ/2 der Arbeitsfrequenz, d.h. der Resonanzfrequenz des Schlitzstrahlerelements. Der
ersten Breitseite 4 des Rechteckhohlleiters gegenüberliegend befindet sich eine andere
(zweite) Breitseite 9, an deren Innenseite dem Schlitz 2 gegenüberliegend ein
sich ebenfalls in Längsrichtung des Hohlleiters 1 erstreckender Steg 3 vorgesehen
ist. Im Bereich des Schlitzes 2, nämlich in Längsrichtung des Hohlleiters 1 betrachtet
in dessen Mitte, ist ein Stift 5 aus einem elektrisch leitfähigen Material angeordnet,
durch welchen Mittel zur Anregung der Abstrahlung der Hohlleiterwelle aus dem
Schlitz 2 gebildet sind. Der Stift 5 bewirkt eine unsymmetrische Verzerrung der Feldverteilung
in dem Hohlleiter im Bereich des Schlitzes, wodurch es der Hohlleiterwelle
gestattet wird, aus dem Schlitz 2 zur Abstrahlung auszutreten. Ohne solche Mittel zur
Anregung der Abstrahlung würde ein Rechteck-Steghohlleiter der dargestellten Art,
bei dem sowohl der Schlitz 2 als auch der Steg 3 in der Hohlleiter-Mitte verlaufen,
nicht abstrahlen.Fig. 1a and 1b show fragmentary slot radiating element in the form of a rectangular ridge waveguide
with two
Bezugnehmend auf Fig. 2, bildet der Stift 5, bzw. allgemein gesprochen, die Mittel zur
Anregung der Abstrahlung der Hohlleiterwelle aus dem Schlitz 2, eine Kapazität C1,
welche einem den Schlitz 2 repräsentierenden Serienresonanzkreis LCR parallel geschaltet
ist. Die Kapazität C1 bedeutet eine Belastung dieses Serienresonanzkreises
LCR mit einem kapazitiven Blindwiderstand.Referring to FIG. 2, the
Wiederum zurückkehrend zu Fig. 1a und 1b ist an dem Steg 3 im Bereich des Schlitzes
2 eine stufenförmige Vertiefung 6 ausgebildet. Diese stufenförmige Vertiefung 6
repräsentiert für die sich in dem Hohlleiter 1 ausbreitende Welle eine zweite quergeschaltete
Kapazität C2, welche die durch den Stift 5 repräsentierte erste quergeschaltete
Kapazität C1 zumindest teilweise kompensiert. Die stufenförmige Vertiefung
6 hat von der Seite gesehen eine rechteckige Form mit einer Länge D und einer Höhe
H. Quer zur Längsrichtung des Hohlleiters 1 gesehen hat die stufenförmige Vertiefung
6, deren Breite der des Steges 3 entspricht, einen ebenfalls rechteckigen
Querschnitt. Die Länge D und die Höhe H der stufenförmigen Vertiefung 6 sind so
gewählt, daß sich die Kapazität C1 der Mittel zur Anregung zur Abstrahlung aus dem
Schlitz 2, also des leitenden Stiftes 5, und die Kapazität C2 der stufenförmigen Vertiefung
6 gerade aufheben, also gilt C1 + C2 = 0. Die stufenförmige Vertiefung 6 hat
somit eine resultierende negative Kapazität, welche der (positiven) Kapazität der
Mittel, d.h. des Stiftes 5, zur Anregung der Abstrahlung aus dem Schlitz 2 gerade
entgegengerichtet ist.Returning again to FIGS. 1 a and 1 b, a stepped
Der die Mittel zur Abstrahlung aus dem Schlitz 2 bildende Stift 5 ist bezüglich der
Längsrichtung des Hohlleiters 1 mittig an dem Schlitz 2 angeordnet. Der Steg 3 hat
quer zur Längsrichtung des Hohlleiters 1 gesehen einen rechteckigen Querschnitt,
wobei die Breite B des Steges 3, und damit auch die der stufenförmigen Vertiefung 6,
größer als die Breite b des Schlitzes 2 ist. Der seitlich neben dem Schlitz 2 angeordnete
Stift 5 befindet sich mit seiner Mitte ungefähr über der seitlichen Begrenzung
des Steges 3. Die stufenförmige Vertiefung 6 ist bezüglich der Längsrichtung des
Hohlleiters 1 mittig an dem Schlitz 2 angeordnet.The
Die resultierende Wirkung der kombinierten Anordnung des die Mittel zur Abstrahlung
der Hohlleiterwelle bildenden Stiftes 5 und der durch die Vertiefung 6 gebildeten
Stufenform besteht in einer Anregung der Abstrahlung der Hohlleiterwelle aus dem
Schlitz 2 ohne eine Belastung der Schaltung mit einem kapazitiven Blindwiderstand.The resulting effect of the combined arrangement of the means of radiation
the waveguide
Claims (8)
- Slotted antenna element in the form of a rectangular waveguide stub (1) havingcharacterized in thatat least one slot (2) which is located in the centre of one broad face (4) of the rectangular waveguide stub (1),rectangular waveguide stub (3) which is arranged in the centre of the inner surface of the other broad face (9) of the rectangular waveguide stub (1), with the slot (2) and the stub (3) each extending along the longitudinal direction of the waveguide stub (1),coupling means (5), which are arranged within the waveguide stub (1) and excite the slot (2) to emit electromagnetic energy,compensation means (6) which are formed on the surface of the stub (3) facing the slot (2) and compensate for the mismatch, that is caused by the coupling means (5) between the waveguide stub (1) and the generator which feeds electromagnetic energy to the waveguide stub (1), with the compensation means (6) being designed such that the stub (3) has a depression in the form of a step in the area of the slot (2),
the coupling means (5) are formed by means of a pin, which is arranged at the side alongside the slot on the broad face (4) which is formed with the slot (2), and are arranged with their centre above the side boundary of the stub (3). - Slotted antenna element according to Claim 1, characterized in that the depression (6) which is in the form of a step is a negative capacitance (C2), which is connected in parallel with the series resonant circuit (LCR), in a line equivalent circuit in which the slot (2) in the waveguide stub (1) is represented as the series resonance circuit (LCR).
- Slotted antenna element according to one of the preceding claims, characterized in that the coupling means (5) are formed by a pin which is arranged at the side alongside the slot (2) and is composed of a conductive material.
- Slotted antenna element according to one of the preceding claims, characterized in that the pin is arranged at the same height as the centre of the slot (2).
- Slotted antenna element according to one of the preceding claims, characterized in that the depression (6) which is in the form of a step has a rectangular cross section parallel to and/or at right angles to the longitudinal direction of the stub (3), and has a length (D) and a height (H).
- Slotted antenna element according to Claim 6, characterized in that the depression which is in the form of a step and the slot (2) are arranged centrally with respect to one another with reference to the longitudinal direction of the waveguide stub (1).
- Slotted antenna element according to one of Claims 5 or 6, characterized in that the length D and the length H of the depression (6) which is in the form of a step are chosen such that C1 + C2 = 0 where C1 is the coupling means (5), which can be represented as the capacitance C1 in a line equivalent circuit and C2 is the depression in the stub (3) which is in the form of a step and can be represented as a negative capacitance C2 in a line equivalent circuit.
- Slotted antenna element according to one of the preceding claims, characterized in that the width B of the stub (3) is greater than the width b of the slot (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10126469A DE10126469A1 (en) | 2001-05-31 | 2001-05-31 | Slot radiating element |
| DE10126469 | 2001-05-31 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1263086A2 EP1263086A2 (en) | 2002-12-04 |
| EP1263086A3 EP1263086A3 (en) | 2005-01-19 |
| EP1263086B1 true EP1263086B1 (en) | 2005-12-28 |
Family
ID=7686729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02007598A Expired - Lifetime EP1263086B1 (en) | 2001-05-31 | 2002-04-04 | Slot antenna |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6954183B2 (en) |
| EP (1) | EP1263086B1 (en) |
| JP (1) | JP3995980B2 (en) |
| DE (2) | DE10126469A1 (en) |
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 (en) | 2006-12-01 | 2013-10-17 | Astrium Gmbh | Waveguide radiators |
| CN102917636A (en) | 2010-06-08 | 2013-02-06 | 霍夫曼-拉罗奇有限公司 | Analyte sensor having a slot antenna |
| DE102011001569A1 (en) | 2011-03-25 | 2012-09-27 | Technische Universität Carolo-Wilhelmina Zu Braunschweig | Method and apparatus for modeling antenna radiation characteristics |
| CN104505595B (en) * | 2014-12-09 | 2017-04-19 | 中国电子科技集团公司第三十八研究所 | Wideband single-cavity waveguide slot resonant antenna |
| CN109802240B (en) * | 2018-12-29 | 2024-04-02 | 南京信息职业技术学院 | Circular polarization slot antenna based on rectangular waveguide |
| US11171399B2 (en) * | 2019-07-23 | 2021-11-09 | Veoneer Us, Inc. | Meandering waveguide ridges and related sensor assemblies |
| CN113871858B (en) * | 2021-09-27 | 2023-05-16 | 中国电子科技集团公司第三十八研究所 | Ridge waveguide antenna subarray with expandable array and array |
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 (en) * | 1969-11-25 | 1972-03-09 | Pensenskij Kompressornyj Sawod | Gas-fired cupola |
| FR2555823B1 (en) * | 1982-03-26 | 1987-07-17 | Thomson Csf | DEVICE FOR DRIVING AN UNCENTERED SLOT CUT ON THE LARGE SIDE OF A WAVEGUIDE AND SLOT ANTENNA COMPRISING SUCH A DEVICE |
| 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/en not_active Withdrawn
-
2002
- 2002-04-04 DE DE50205399T patent/DE50205399D1/en not_active Expired - Lifetime
- 2002-04-04 EP EP02007598A patent/EP1263086B1/en not_active Expired - Lifetime
- 2002-05-17 JP JP2002142958A patent/JP3995980B2/en 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 |
|---|---|
| DE50205399D1 (en) | 2006-02-02 |
| US20030001789A1 (en) | 2003-01-02 |
| DE10126469A1 (en) | 2002-12-12 |
| EP1263086A2 (en) | 2002-12-04 |
| US6954183B2 (en) | 2005-10-11 |
| JP2003032027A (en) | 2003-01-31 |
| EP1263086A3 (en) | 2005-01-19 |
| JP3995980B2 (en) | 2007-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60009874T2 (en) | V-slot antenna for circular polarization | |
| DE112013001764B4 (en) | Antenna field device with slotted waveguide | |
| DE2633757C2 (en) | ||
| DE69319382T2 (en) | Dual mode stripline ring resonator and bandpass filter with such resonators | |
| DE69723366T2 (en) | Surface mount antenna and communication device with such an antenna | |
| DE69225682T2 (en) | Waveguide antenna with a slotted waveguide | |
| DE102007005928B4 (en) | Transmission line transition | |
| DE602005002697T2 (en) | Small planar antenna with increased bandwidth and small strip antenna | |
| EP3220480B1 (en) | Dipole-shaped radiator assembly | |
| DE68908230T2 (en) | Compact RF-excited waveguide gas laser device with distributed inductors. | |
| EP0766099A2 (en) | Doppler radar module | |
| DE2552478A1 (en) | DIRECTIVE COUPLER CONSTRUCTED IN RIBBON TECHNOLOGY | |
| DE69932899T2 (en) | Transmission line and transmission line resonator | |
| EP1263086B1 (en) | Slot antenna | |
| DE1030904B (en) | Microwave transmission line in the manner of a printed circuit with a first strip-shaped conductor, which is arranged at a very small distance with respect to the wavelength and parallel to a second strip-shaped conductor separated by a dielectric layer and of equal or greater width | |
| DE60300040T2 (en) | Dielectric resonator with a planar dielectric transmission line and filter and oscillator with such a resonator | |
| DE69715776T2 (en) | Distributed constant filter | |
| EP0732762A1 (en) | Planar filter | |
| DE69618278T2 (en) | Dielectric filter | |
| DE69015608T2 (en) | Slotted waveguide radiator with transverse slots that are excited by printed, conductive patterns. | |
| DE10146338A1 (en) | Circular polarization wave antenna and manufacturing method thereof | |
| DE60110033T2 (en) | Band-pass filter with a compact dielectric structure consisting of half-wave resonators and intermediate evanescent waveguides | |
| DE19600516A1 (en) | Planar antenna system for automobile collision avoidance systems | |
| EP0177828B1 (en) | Monomode diode laser | |
| DE69818326T2 (en) | Dielectric filter, dielectric duplexer and process for their manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17P | Request for examination filed |
Effective date: 20050203 |
|
| 17Q | First examination report despatched |
Effective date: 20050311 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| AKX | Designation fees paid |
Designated state(s): DE FR GB IT NL SE |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT NL SE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 50205399 Country of ref document: DE Date of ref document: 20060202 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060227 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20060929 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20120425 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20120418 Year of fee payment: 11 Ref country code: GB Payment date: 20120419 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120423 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20130515 Year of fee payment: 12 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20131101 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20130404 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130404 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130405 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131101 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130404 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50205399 Country of ref document: DE Owner name: AIRBUS DEFENCE AND SPACE GMBH, DE Free format text: FORMER OWNER: EADS DEUTSCHLAND GMBH, 85521 OTTOBRUNN, DE Effective date: 20140916 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20141231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140430 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150421 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50205399 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161101 |