EP1831953A1 - Coupling device for producing at least three different antenna radiation diagrams - Google Patents

Coupling device for producing at least three different antenna radiation diagrams

Info

Publication number
EP1831953A1
EP1831953A1 EP05817144A EP05817144A EP1831953A1 EP 1831953 A1 EP1831953 A1 EP 1831953A1 EP 05817144 A EP05817144 A EP 05817144A EP 05817144 A EP05817144 A EP 05817144A EP 1831953 A1 EP1831953 A1 EP 1831953A1
Authority
EP
European Patent Office
Prior art keywords
antenna
coupling device
switch
rat race
stage switch
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.)
Ceased
Application number
EP05817144A
Other languages
German (de)
French (fr)
Inventor
Dirk Steinbuch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1831953A1 publication Critical patent/EP1831953A1/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/185—Phase-shifters using a diode or a gas filled discharge tube

Definitions

  • Coupling device for generating at least three different
  • Radar pulses emitted for example in automotive technology at 24.125 GHz and determines the duration of these radar pulses and evaluated.
  • radar pulses For all-round visibility, i. the determination of object characteristics around the vehicle to realize a variety of driver assistance or safety functions, different antenna beam diagrams are advantageous. Use well-known techniques for all-round visibility
  • a coupling device for generating at least three different antenna beam diagrams with the aid of two antennas with a device for dividing the antenna signal power on two antenna paths, a three-step switch in one of the antenna paths, which is controllable via feedable control signals in three transmission states to the two
  • Figure 1 is a coupling device with 90 ° phase shift between the
  • FIG. 4 shows the transmission phase with reference to a first switching state of the three-stage switch
  • FIG. 5 shows the transmission in the three different switching states of the three-stage switch
  • FIG. 6 the input adaptation in the three switching states of the three-stage switch
  • FIG. 7 shows the structure of the three-stage switch
  • FIGS 1 to 3 each show a schematic diagram of a coupling device according to the invention.
  • the antenna signal power provided by the radar signal processing (not shown) is equally distributed over the device 1, in particular a 3dB coupler, on two transmission antenna paths.
  • a three-stage switch 3 In an antenna path leading to the transmitting antenna 2, there is a three-stage switch 3.
  • the other path leads directly to the transmitting antenna 4, which is typically identical to the transmitting antenna 2.
  • the three-stage switch 3 can be controlled via control signals in three transmission states, with the result that the superimposition of the respective antenna beam diagrams of the individual antennas results in three different overall antenna beam diagrams.
  • the three different transmission states of the three-stage switch 3 are generated by applying three different control voltages.
  • the three-stage switch 3 in state 1 blocks the control voltage 0 volts.
  • the phase shift of the antenna signals is 90 °, which is irrelevant here, since the antenna 2 does not receive a transmission signal in this case.
  • the three-step switch 3 is conductive.
  • the control voltage is +2 volts and the phase shift ⁇ between the transmission signals for the antennas 2 and 4 is 180 °.
  • the three-step switch 3 is supplied with a control voltage of -2 volts.
  • the phase difference ⁇ is 0 °.
  • FIGS. 4 to 6 show the simulation results of the phase response of the three-stage switch 3 in the 3 states 0, 1, 2, for example at the frequency around 24.125 GHz.
  • FIG. 4 shows the transmission phase (S 21) in relation to the state 0 (iso), in FIG. 5 the transmission (S 21) in the three operating states and in FIG. 6 the input adaptation (S 11) in the three operating states.
  • S 21 transmission phase
  • S 21 transmission phase in relation to the state 0 (iso)
  • FIG. 5 the transmission (S 21) in the three operating states
  • S 11 input adaptation
  • the implementation of the three-stage switch 3 is carried out according to Figure 7, advantageously by a ring coupler, in particular a rat-race coupler ring 7 (6 x ⁇ / 4 coupler) in planar stripline technology with two diodes 5 and 6 as a switch and the input 8 and output. 9 for the RF antenna signal. Via the control line 10, the control voltages for the three states 0, 1, 2 are supplied. It is advantageous to arrange the diode pair 5 and 6 within the rat race coupling ring 7, wherein first terminal ends of the diode pair are connected to mutually phase-offset connection points of the rat race coupling ring 7 and second terminal ends together on DC ground (point 11) and HF ground (transformation element 12).
  • the other sector-shaped conductor couplings and stub lines are RF transformation elements for adaptation.
  • any types can be used.
  • silicon Schottky diodes were used.
  • the blocking state without applied control voltage of the three-step switch 3 is designed so that the diodes 5 and 6 are adapted, and thus the three-step switch 3 due to its rat race structure isolated. If a negative voltage is applied, then one diode is operated in fürläse-, the other in the stopband. The impedances of the diode branches are now no longer identical and the ring loses its insulation, whereby the three-step switch 3 conducts. The same thing happens when positive voltage is applied, except that the transmission phase changes by 180 °, as shown in FIGS. 4 to 6.
  • the corresponding directional diagrams can be seen in FIGS. 8, 9 and 10. While at the switch states 0: -2 volts and 2: +2 volts the complete available power is radiated (minus insertion loss of the switch), in state 1: 0 volts half of the power is dissipated in the three-step switch 3. This has the disadvantage that potential transmission power is lost; the advantage that the three-step switch is also adapted in this state.
  • the line from the splitting point (device 1) to the antenna 4 is advantageously to be dimensioned such that its electrical length is equal to that of the path to the antenna 2 including switches in state 0.
  • damping must be introduced according to the insertion loss of the three-step switch 3. This happens, for example, by shunt resistors on the line.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention relates to a coupling device which is used to produce at least three different antenna radiation diagrams using only two antennas. As a result, a device for distributing (1) the antenna signal power to two antenna paths is provided, in addition to a three-step switch (3) which is provided in one of the antenna paths, and which can be controlled in three transmission states by supplied control signals.

Description

Koppeleinrichtung zur Erzeugung von wenigstens drei unterschiedlichenCoupling device for generating at least three different
AntennenstrahldiagrammenAntenna beam diagrams
Stand der TechnikState of the art
Für die Geschwindigkeit- und Entfernungsbestimmung mittels Radarsignalen werdenFor speed and distance determination by means of radar signals
Radarpulse beispielsweise in der Kraftfahrzeugtechnik bei 24,125 GHz ausgesandt und die Laufzeit dieser Radarpulse bestimmt und ausgewertet. Für die Rundumsicht, d.h. der Bestimmung von Objektcharakteristika rund um das Fahrzeug, um verschiedenste Fahrerassistenz- oder Sicherheitsfunktionen zu realisieren, sind unterschiedliche Antennenstrahldiagramme vorteilhaft. Bekannte Techniken zur Rundumsicht verwendenRadar pulses emitted for example in automotive technology at 24.125 GHz and determines the duration of these radar pulses and evaluated. For all-round visibility, i. the determination of object characteristics around the vehicle to realize a variety of driver assistance or safety functions, different antenna beam diagrams are advantageous. Use well-known techniques for all-round visibility
Monopuls-Empfänger oder digitale Strahlformungskonzepte sowie kontinuierlich schwenkbare Antennen.Monopulse receivers or digital beam shaping concepts as well as continuously swiveling antennas.
Vorteile der ErfindungAdvantages of the invention
Mit den Maßnahmen der Erfindung, d.h. einer Koppeleinrichtung zur Erzeugung von wenigstens drei unterschiedlichen Antennenstrahldiagrammen unter Zuhilfenahme von zwei Antennen mit einer Einrichtung zur Aufteilung der Antennensignalleistung auf zwei Antennenpfade, einem Dreistufenschalter in einem der Antennenpfade, der über zuführbare Steuersignale in drei Transmissionszustände steuerbar ist, um den beidenWith the measures of the invention, i. a coupling device for generating at least three different antenna beam diagrams with the aid of two antennas with a device for dividing the antenna signal power on two antenna paths, a three-step switch in one of the antenna paths, which is controllable via feedable control signals in three transmission states to the two
Antennen Antennensignalleistung zuzuführen, die in unterschiedlichen Antennenstrahldiagrammen resultiert, ist es möglich, den Hardware- sowie den Verarbeitungsaufwand gering zu halten. Ohne weiteren Hardwareaufwand steht gegenüber bisherigen Lösungen ein Antennenstrahldiagramm mehr zur Verfügung und damit mehr Information für die empfangsseitige Signalverarbeitung. Damit können verschiedene Funktionen wie z.B. „tote Winkel-Detektion" oder „Spurwechselassistent" besser bedient werden.It is possible to minimize the hardware as well as the processing effort by providing antennas with antenna signal power resulting in different antenna beam diagrams. Without further hardware effort is compared to previous solutions an antenna beam diagram more available and thus more information for the receiving side signal processing. With that you can various functions such as "blind spot detection" or "lane change assistant" are better served.
Zeichnungendrawings
Anhand der Zeichnungen werden Ausfuhrungsbeispiele der Erfindung näher erläutert.Reference to the drawings exemplary embodiments of the invention are explained in detail.
Es zeigen:Show it:
Figur 1 eine Koppeleinrichtung mit 90°-Phasenverschiebung zwischen denFigure 1 is a coupling device with 90 ° phase shift between the
Antennensignalen zweier Antennen,Antenna signals of two antennas,
Figur 2 eine Koppeleinrichtung mit 180°-Phasenverschiebung zwischen den Antennensignalen zweier Antennen,2 shows a coupling device with 180 ° phase shift between the antenna signals of two antennas,
Figur 3 eine Koppeleinrichtung mit O°-Phasenverschiebung zwischen den Antennensignalen zweier Antennen,3 shows a coupling device with O ° phase shift between the antenna signals of two antennas,
Figur 4 die Transmissionsphase bezogen auf einen ersten Schaltzustand des Dreistufenschalters,FIG. 4 shows the transmission phase with reference to a first switching state of the three-stage switch,
Figur 5 die Transmission in den drei verschiedenen Schaltzuständen des Dreistufenschalters,FIG. 5 shows the transmission in the three different switching states of the three-stage switch,
Figur 6 die Eingangsanpassung in den drei Schaltzuständen des Dreistufenschalters,FIG. 6 the input adaptation in the three switching states of the three-stage switch,
Figur 7 den Aufbau des Dreistufenschalters,FIG. 7 shows the structure of the three-stage switch,
Figur 8 bis Figur 10 die überlagerten Antennenstrahldiagramme zweier Antennen für die drei Schaltzustände des Dreistufenschalters. Beschreibung von Ausführungsbeispielen8 to 10 show the superimposed antenna beam diagrams of two antennas for the three switching states of the three-stage switch. Description of exemplary embodiments
Die Figuren 1 bis 3 zeigen jeweils ein Prinzipschaltbild einer Koppeleinrichtung nach der Erfindung. Die von der Radarsignalaufbereitung (nicht dargestellt) zur Verfügung gestellte Antennensignalleistung wird über die Einrichtung 1, insbesondere ein 3dB- Koppler, auf zwei Sendeantennenpfade gleichmäßig aufgeteilt. In einem Antennenpfad, der zur Sendeantenne 2 führt, befindet sich ein Dreistufenschalter 3. Der andere Pfad führt direkt zur Sendeantenne 4, die typischerweise identisch zur Sendeantenne 2 ist. Der Dreistufenschalter 3 ist über Steuersignale in drei Transmissionszustände steuerbar, was dazu führt, dass die Überlagerung der jeweiligen Antennenstrahldiagramme der Einzelantennen in drei unterschiedlichen Gesamtantennenstrahldiagrammen resultiert. Die drei verschiedenen Transmissionszustände des Dreistufenschalters 3 werden durch Beaufschlagung mit drei verschiedenen Steuerspannungen erzeugt.Figures 1 to 3 each show a schematic diagram of a coupling device according to the invention. The antenna signal power provided by the radar signal processing (not shown) is equally distributed over the device 1, in particular a 3dB coupler, on two transmission antenna paths. In an antenna path leading to the transmitting antenna 2, there is a three-stage switch 3. The other path leads directly to the transmitting antenna 4, which is typically identical to the transmitting antenna 2. The three-stage switch 3 can be controlled via control signals in three transmission states, with the result that the superimposition of the respective antenna beam diagrams of the individual antennas results in three different overall antenna beam diagrams. The three different transmission states of the three-stage switch 3 are generated by applying three different control voltages.
Nachfolgende Tabelle listet diese Zustände auf:The following table lists these states:
Wie auch aus Figur 1 ersichtlich ist, sperrt der Dreistufenschalter 3 im Zustand 1 bei der Steuerspannung 0 Volt. Die Phasenverschiebung der Antennensignale beträgt 90°, was hier aber irrelevant ist, da die Antenne 2 in diesem Falle kein Sendesignal erhält. Bei Figur 2 ist der Dreistufenschalter 3 leitend. Die Steuerspannung beträgt +2 Volt und die Phasenverschiebung Δφ zwischen den Sendesignalen für die Antennen 2 und 4 beträgt 180°. Bei Figur 3 wird der Dreistufenschalter 3 mit einer Steuerspannung von -2 Volt beaufschlagt. Der Phasenunterschied Δφ beträgt 0°.As can also be seen in FIG. 1, the three-stage switch 3 in state 1 blocks the control voltage 0 volts. The phase shift of the antenna signals is 90 °, which is irrelevant here, since the antenna 2 does not receive a transmission signal in this case. In Figure 2, the three-step switch 3 is conductive. The control voltage is +2 volts and the phase shift Δφ between the transmission signals for the antennas 2 and 4 is 180 °. In Figure 3, the three-step switch 3 is supplied with a control voltage of -2 volts. The phase difference Δφ is 0 °.
In den Figuren 4 bis 6 sind die Simulationsergebnisse des Phasengangs des Dreistufenschalters 3 in den 3 Zuständen 0, 1, 2 gezeigt, beispielhaft bei der Frequenz um 24.125 GHz. In Figur 4 ist die Transmissionsphase (S 21) bezogen auf den Zustand 0 (iso) dargestellt, in Figur 5 die Transmission (S 21) in den drei Betriebszuständen und in Figur 6 die Eingangsanpassung (S 11) in den drei Betriebszuständen. - A -FIGS. 4 to 6 show the simulation results of the phase response of the three-stage switch 3 in the 3 states 0, 1, 2, for example at the frequency around 24.125 GHz. FIG. 4 shows the transmission phase (S 21) in relation to the state 0 (iso), in FIG. 5 the transmission (S 21) in the three operating states and in FIG. 6 the input adaptation (S 11) in the three operating states. - A -
Die Realisierung des Dreistufenschalters 3 erfolgt gemäß Figur 7, vorteilhafterweise durch einen Ringkoppler, insbesondere einen Rat-Race-Kopplerring 7 (6 x λ/4-Koppler) in planarer Streifenleitungstechnik mit zwei Dioden 5 und 6 als Schalter und dem Eingang 8 und Ausgang 9 für das HF-Antennensignal. Über die Steuerleitung 10 werden die Steuerspannungen für die drei Zustände 0, 1, 2 zugeführt. Vorteilhaft ist es, das Diodenpaar 5 und 6 innerhalb des Rat-Race-Koppelrings 7 anzuordnen, wobei erste Anschlussenden des Diodenpaares an zueinander phasenversetzte Anschlusspunkte des Rat-Race-Koppelringes 7 angeschlossen sind und zweite Anschlussenden gemeinsam auf DC-Masse (Punkt 11) und HF-Masse (Transformationselement 12). Die weiteren sektorförmigen Leiterankopplungen und Stichleitungen sind HF- Transformationselemente zur Anpassung.The implementation of the three-stage switch 3 is carried out according to Figure 7, advantageously by a ring coupler, in particular a rat-race coupler ring 7 (6 x λ / 4 coupler) in planar stripline technology with two diodes 5 and 6 as a switch and the input 8 and output. 9 for the RF antenna signal. Via the control line 10, the control voltages for the three states 0, 1, 2 are supplied. It is advantageous to arrange the diode pair 5 and 6 within the rat race coupling ring 7, wherein first terminal ends of the diode pair are connected to mutually phase-offset connection points of the rat race coupling ring 7 and second terminal ends together on DC ground (point 11) and HF ground (transformation element 12). The other sector-shaped conductor couplings and stub lines are RF transformation elements for adaptation.
Als Dioden können beliebige Typen eingesetzt werden. Im speziellen Fall wurden Silizium-Schottkydioden verwendet. Im sperrenden Zustand ohne angelegte Steuerspannung ist der Dreistufenschalter 3 so ausgelegt, dass die Dioden 5 und 6 angepasst sind und damit der Dreistufenschalter 3 aufgrund seiner Rat-Race-Struktur isoliert. Wird eine negative Spannung angelegt, so wird eine Diode im Durchläse-, die andere im Sperrbereich betrieben. Die Impedanzen der Diodenzweige sind nun nicht mehr identisch und der Ring verliert seine Isolation, wodurch der Dreistufenschalter 3 leitet. Gleiches passiert, wenn positive Spannung angelegt wird, nur dass sich dabei die Transmissionsphase um 180° ändert, wie die Figuren 4 bis 6 zeigen.As diodes, any types can be used. In the special case, silicon Schottky diodes were used. In the blocking state without applied control voltage of the three-step switch 3 is designed so that the diodes 5 and 6 are adapted, and thus the three-step switch 3 due to its rat race structure isolated. If a negative voltage is applied, then one diode is operated in Durchläse-, the other in the stopband. The impedances of the diode branches are now no longer identical and the ring loses its insulation, whereby the three-step switch 3 conducts. The same thing happens when positive voltage is applied, except that the transmission phase changes by 180 °, as shown in FIGS. 4 to 6.
Damit werden in den Zuständen die beiden Antennen verschieden gespeist, wie nachfolgende Tabelle zusammenfasst: PlN bezeichnet die verfügbare Leistung, P^ die Leistung an Antenne 4, P2 die Leistung an Antenne 2.Thus, in the states the two antennas are fed differently, as summarized in the following table: PlN denotes the available power, P ^ the power at antenna 4, P2 the power at antenna 2.
Die entsprechenden Richtdiagramme sind in den Figuren 8, 9 und 10 zu entnehmen. Während bei den Schalterzuständen 0: -2 Volt und 2: +2 Volt die komplette, verfügbare Leistung abgestrahlt wird (abzüglich Einfügungsverluste des Schalters), wird in Zustand 1: 0 Volt die Hälfte der Leistung im Dreistufenschalter 3 dissipiert. Das hat den Nachteil, dass potenzielle Sendeleistung verloren geht; den Vorteil, dass der Dreistufenschalter auch in diesem Zustand angepasst ist. Die Leitung vom Aufteilungspunkt (Einrichtung 1) zur Antenne 4 ist vorteilhafterweise so zu dimensionieren, dass deren elektrische Länge gleich der des Pfades zur Antenne 2 inklusive Schalter im Zustand 0 ist. Zusätzlich muss in der Leitung zur Antenne 4 Dämpfung entsprechend der Durchgangsdämpfung des Dreistufenschalters 3 eingebracht werden. Dies geschieht z.B. durch Parallelwiderstände auf der Leitung. The corresponding directional diagrams can be seen in FIGS. 8, 9 and 10. While at the switch states 0: -2 volts and 2: +2 volts the complete available power is radiated (minus insertion loss of the switch), in state 1: 0 volts half of the power is dissipated in the three-step switch 3. This has the disadvantage that potential transmission power is lost; the advantage that the three-step switch is also adapted in this state. The line from the splitting point (device 1) to the antenna 4 is advantageously to be dimensioned such that its electrical length is equal to that of the path to the antenna 2 including switches in state 0. In addition, in the line to the antenna 4 damping must be introduced according to the insertion loss of the three-step switch 3. This happens, for example, by shunt resistors on the line.

Claims

Ansprüche claims
1. Koppeleinrichtung zur Erzeugung von wenigstens drei unterschiedlichen Antennenstrahldiagrammen unter Zuhilfenahme von zwei Antennen (2,4) mit folgenden Merkmalen: - einer Einrichtung ( 1 ) zur Aufteilung der Antennensignalleistung auf zwei1. Coupling device for generating at least three different antenna beam diagrams with the aid of two antennas (2,4) having the following features: - a device (1) for dividing the antenna signal power to two
Antennenpfade, einem Dreistufenschalter (3) in einem der Antennenpfade, der über zuführbare Steuersignale in drei Transmissionszustände steuerbar ist, um den beiden Antennen (2,4) Antennensignalleistung zuzuführen, die in unterschiedlichen Antennenstrahldiagrammen resultiert.Antenna paths, a three-step switch (3) in one of the antenna paths, which is controllable via feedable control signals in three transmission states to the two antennas (2.4) supply antenna signal power, resulting in different antenna beam diagrams.
2. Koppeleinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die drei Transmissionszustände des Dreistufenschalters (3) durch Beaufschlagung mit einer positiven, insbesondere gleich hohen, negativen und einer 0-Spannung realisiert sind.2. Coupling device according to claim 1, characterized in that the three transmission states of the three-stage switch (3) are realized by application of a positive, in particular the same high, negative and 0 voltage.
3. Koppeleinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Rat- Race-Koppler (7) mit zwei Schaltelementen, insbesondere einem Diodenpaar (5, 6) vorgesehen ist, wobei die beiden Schaltelemente durch die Beaufschlagung mit verschiedenen Steuerspannungen als Dreistufenschalter (3) betriebsfähig sind.3. Coupling device according to claim 1 or 2, characterized in that a rat race coupler (7) with two switching elements, in particular a diode pair (5, 6) is provided, wherein the two switching elements by the application of different control voltages as three-stage switch ( 3) are operational.
4. Koppeleinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Dreistufenschalter (3) im Sperrzustand, d.h. ohne angelegtes Steuersignal so ausgelegt ist, dass die durch die Steuersignale aktivierbaren Schaltelemente (5, 6) angepasst sind, d.h. die Koppeleinrichtung aufgrund ihrer Rat-Race-Struktur isoliert. 4. Coupling device according to claim 3, characterized in that the three-step switch (3) in the blocking state, that is designed without applied control signal that the activatable by the control signals switching elements (5, 6) are adapted, ie the coupling device due to their Rat Race Structure isolated.
5. Koppeleinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Antennenpfade bezüglich ihrer elektrischen Länge und Durchgangsdämpfung gleich ausgestaltet sind, d.h. die durch den Dreistufenschalter (3) in einen Antennenpfad eingebrachte Leitungslänge und Durchgangsdämpfung wird im anderen Antennenpfad nachgebildet.5. Coupling device according to one of claims 1 to 4, characterized in that the antenna paths are made equal in terms of their electrical length and transmission loss, i. the line length and transmission loss introduced by the three-stage switch (3) into an antenna path is reproduced in the other antenna path.
6. Koppeleinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Dreistufenschalter (3) folgende Merkmale aufweist:6. Coupling device according to one of claims 1 to 5, characterized in that the three-stage switch (3) has the following features:
- einen Ringkoppler, insbesondere einen Rat-Race-Koppler (7) in Streifenleiterstruktur, ein Schalterpaar, insbesondere ein Diodenpaar (5,6), welches innerhalb des Rat-Race- Koppelringes angeordnet ist, wobei erste Anschlussenden des Diodenpaares/Schalterpaares an zueinander phasenversetzte Anschlusspunkte des Ringkopplers/Rat-Race-Ringes angeschlossen sind und zweite Anschlussenden gemeinsam auf DC- und HF-Masse geführt sind. - A ring coupler, in particular a Rat Race coupler (7) in stripline structure, a pair of switches, in particular a diode pair (5,6), which is disposed within the Rat Race coupling ring, said first terminal ends of the diode pair / switch pair to each other in phase Connection points of the ring coupler / Rat Race ring are connected and second connection ends are led together on DC and RF ground.
EP05817144A 2004-12-22 2005-11-18 Coupling device for producing at least three different antenna radiation diagrams Ceased EP1831953A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410061805 DE102004061805A1 (en) 2004-12-22 2004-12-22 Coupling device for generating at least three different antenna beam diagrams
PCT/EP2005/056080 WO2006067010A1 (en) 2004-12-22 2005-11-18 Coupling device for producing at least three different antenna radiation diagrams

Publications (1)

Publication Number Publication Date
EP1831953A1 true EP1831953A1 (en) 2007-09-12

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CN (1) CN101088193A (en)
DE (1) DE102004061805A1 (en)
WO (1) WO2006067010A1 (en)

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CN108336506B (en) * 2018-01-10 2021-02-23 宇龙计算机通信科技(深圳)有限公司 Antenna system and communication terminal
CN114157332B (en) * 2021-12-15 2023-09-15 江苏德是和通信科技有限公司 Antenna switch board integrating electric switching function

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Publication number Priority date Publication date Assignee Title
US3346822A (en) * 1963-02-15 1967-10-10 Cubic Corp Hybrid ring structure for reversing the phase of an rf signal in accordance with the level of a two-voltage level signal producing means
US4378559A (en) * 1980-12-05 1983-03-29 The United States Of America As Represented By The Secretary Of The Army Radar antenna system
JPS586602A (en) * 1981-07-03 1983-01-14 Sumitomo Electric Ind Ltd Active antenna
FR2653939B1 (en) * 1989-10-27 1992-01-17 Alcatel Transmission HYPERFREQUENCY PHASE WITH ENDLESS PHASE.

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Title
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CN101088193A (en) 2007-12-12
DE102004061805A1 (en) 2006-07-06
WO2006067010A1 (en) 2006-06-29

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