DE2825968A1 - Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable - Google Patents

Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable

Info

Publication number
DE2825968A1
DE2825968A1 DE19782825968 DE2825968A DE2825968A1 DE 2825968 A1 DE2825968 A1 DE 2825968A1 DE 19782825968 DE19782825968 DE 19782825968 DE 2825968 A DE2825968 A DE 2825968A DE 2825968 A1 DE2825968 A1 DE 2825968A1
Authority
DE
Germany
Prior art keywords
receiver
probes
adjustable
transmitter
waveguide
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
DE19782825968
Other languages
German (de)
Inventor
Colin Dr Phil Hamilton
Albert Dipl Ing Schlaud
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.)
Telefunken Systemtechnik AG
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19782825968 priority Critical patent/DE2825968A1/en
Publication of DE2825968A1 publication Critical patent/DE2825968A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices

Landscapes

  • Transceivers (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

The change-over switch between a transmitter and a receiver contains a 2 dB coupler for attenuation purposes. The assembly uses PIN-diodes duplexers of high power, which is compact even for application of low frequencies. Two coupling probes leading to coaxial lines, are mounted in a waveguide in a quarter-wavelength spacing. One probe is adjustable by further PIN-diodes in a quarter-wavelength spacing, while the other one is adjustable by a tuning screw. In order to increase the effective performance, a further identical change-over switch is connected in parallel and the receiver outputs are commoned by a 3 dB coupler.

Description

Umschalter für eine Antenne zwischen einem Sender und einemSwitch for an antenna between a transmitter and a

Empfänger Die Erfindung betrifft einan Umschalter für eine Antenne zwischen einem Sender und einem Empfänger nach dem Oberbegriff des Patentanspruches 1. Receiver The invention relates to a switch for an antenna between a transmitter and a receiver according to the preamble of the patent claim 1.

Zur Umschaltung einer Antenne zwischen einem Sender und einem Empfänger werden in Hohlleiter-Technik aus Dämpfungsgründen eine 3-dB-Koppler-Anordnung verwendet. Zur Umschaltung werden in diesen Hochleistungs-Duplexern PIN-Dioden verwendet (High Power Duplexers von D. E. Muehe, MTT-9, Nov. 1961, Seiten 5o6 @ 512). Diese Anordnung hat aber den Nachteil, daß bei niedrigen Frequenzen der Duplexer sehr groß wird.For switching an antenna between a transmitter and a receiver For reasons of attenuation, a 3 dB coupler arrangement is used in waveguide technology. PIN diodes are used in these high-performance duplexers for switching (high Power Duplexers by D. E. Muehe, MTT-9, Nov. 1961, pages 506 @ 512). This arrangement but has the disadvantage that the duplexer becomes very large at low frequencies.

Die Aufgabe besteht daher darin, einen Umschalter für eine Antenne zwischen einem Sender und einem Empfänger in einem Hochleistungs-PIN-Dioden-Duplexer zu schaffen, der sehr kompakt ist.The task is therefore to create a switch for an antenna between a transmitter and a receiver in a high performance PIN diode duplexer to create that is very compact.

Die Aufgabe wird nach der Erfindung durch die in den Patentansprüchen angegebenen Maßnahmen gelöst.The object is achieved according to the invention by what is stated in the claims specified measures resolved.

Aus der Erkenntnis heraus, daß der Umsohalter nur in einem Schaltzustand unter Leistung steht, werden bei herkömmlichen Duplexern in diesem Zustand die Dioden in der.Flußrichtung geschaltet. Diese Maßnahme bringt jedoch noch keine Abhilfe. Berücksichtigt man noch, daß die Empfangslei tung keine hohe Leistung vertragen muß, so ist es nicht nötig, sie in Hohlleiter-Technik auszuführen.From the knowledge that the Umsohalter only in one switching state is under power, the diodes in conventional duplexers are in this state switched in the direction of flow. However, this measure does not yet provide a remedy. If one also takes into account that the reception line cannot tolerate high performance it is not necessary to use waveguide technology.

Die Erfindung wird im folgenden an einem Ausführungsbeispiel anhand von Zeichnungen näher erläutert. Der Umschalter nach der Erfindung ist in Fig. 1 dargestellt. Er besteht aus einem Hohlleiter 1 und Leitern 2, 3, die zu KoaxialleiO tungen führen. Der Leiter.2 dient als Empfangsleiter und enthält eine Sonde A. Die Sonde A ist mit PIN-Dioden 4 bestückt, von denenCim..vorliegentRen Ausführungsbeispiel drei dargestellt sind. Es können jedoch auch noch mehr .PIN-Dioden angeordnet werden, die vorzugsweise paarweise im Abstand von t angeordnet sind. Die PIN-Dioden sind mit Wärmeableitern 5 verbunden. Der Leiter 3.enthäLt ebenfalls eire Sonde B, die mit weiteren PIN-Dioden 6 bestückt ist. Die Sonde B enthält ferner eine Abstimmschraube 7. Die PIN.Dioden Impedanzen werden im abgeschalteten Zustand als Leerlauf parallel zu.der Leitung transformiert. In diesem Zu stand läuft die HF-Leistung ohne wesentliche Dämpfung durch das Hohlleiterstück.The invention is illustrated below using an exemplary embodiment explained in more detail by drawings. The changeover switch according to the invention is shown in FIG shown. It consists of a waveguide 1 and conductors 2, 3, which lead to KoaxialleiO lead. The conductor.2 serves as a receiving conductor and contains a probe A. The Probe A is equipped with PIN diodes 4, of which Cim..presentRen embodiment three are shown. However, more .PIN diodes can also be arranged, which are preferably arranged in pairs at a distance of t. The PIN diodes are connected to heat sinks 5. The conductor 3 also contains a probe B, the is equipped with further PIN diodes 6. The probe B also contains a tuning screw 7. The PIN. Diode impedances are paralleled as idle when switched off transformed to the line. In this state, the HF power runs without significant Attenuation by the waveguide section.

Schaltet man auf den Sperrzustand iiber, so wird bei der Sonde B ein Kurzschluß parallel zu der Leitung reflektiert.If you switch to the blocking state, probe B is switched on Short circuit reflected in parallel to the line.

Die Dioden-Reaktanz über dem Nutz-Band kann mit Hilfe der Abstimmschraube 7 ausgeglichen werden. Damit wird bei der Sonde A die Empfangs leistung ausgekoppelt und der Leiter funktioniert jetzt als Hohlleiter-Koaxial-Übertrager.The diode reactance over the useful band can be adjusted with the help of the tuning screw 7 to be balanced. This means that the Probe A the receiving power decoupled and the conductor now functions as a waveguide-coaxial transformer.

In Fig. 2 ist eine Duplexer-Anordnung in doppelter Ausführung dargestellt. Sie dient dazu., eine weitere Erhöhung der Leistungsfestigkeit zu erreichen Dabei werden zwei Duplexer parallel geschaltet. Die beiden Empfänger-Ausgänge werden mittels eines 3-dB-Kopplers zusammengeführt.In Fig. 2, a duplexer arrangement is shown in duplicate. It serves. To achieve a further increase in performance stability two duplexers are connected in parallel. The two receiver outputs are activated by means of a 3 dB coupler.

Da keine Hohlleiter-Koppler nötig sind, kann der gesamte Duplexer damit kiirzer als #/2 sein Es können auch leicht mehrere Dioden ringförmig um die.Koaxial-Leitungen angebracht werden, um die Leistungsfestigkeit zu erhöhen. Ferner kann der Hersteilungsaufwand und damit die erforderhohen Kosten gegenüber der 3-dB-Koppleranordnung wesentlich herabgesetzt werden. Die Anordnung ist ziemlich breitbandig (z. B. über lo % im L-Band) und der Verlust im Sende-Fall liegt lediglich bei o,o5 - o,2 dB. Außerdem können im L-Band mindestens 750 kW (o,2 % Tastverhältnis und sµs Impulsdauer) ohne Überschläge geschaltet werden.Since no waveguide couplers are required, the entire duplexer can thus shorter than # / 2. Several diodes can easily be placed in a ring around the coaxial lines be attached to increase the performance stability. Furthermore, the manufacturing effort and thus the required high costs compared to the 3 dB coupler arrangement be reduced. The arrangement is fairly broadband (e.g. over lo% im L-band) and the loss in the transmission case is only 0.05 - 0.2 dB. aside from that can in the L-band at least 750 kW (0.2% duty cycle and sµs pulse duration) without Flashovers are switched.

LeerseiteBlank page

Claims (2)

P a t e n t a n s p r ü c h e : 1. Umschalter für eine Antenne zwischen einem Sender und einem Empfänger in einem Hochlei3tungs-PIN-Dioden-Duplexer, d a d u r c h g e k e n n z e i c h n e t daß in einem Holilleiter zwei Kopplungs-Sonden, die zu Koaxial-Leitungen führen, vorzugsweise im Ç -Abstand angeordnet sind und von denen die eine durch weitere PIN-Dioden im ~ -Abstand, die andere durch eine Abstimmschraube anpaßbar sind.P a t e n t a n s p r ü c h e: 1. Switch for an antenna between a transmitter and a receiver in a high-performance PIN diode duplexer, d a D u r c h g e k e n n n n n e i c h n e t that two coupling probes in a hollow conductor, which lead to coaxial lines, are preferably arranged at a distance of Ç and of which one through further PIN diodes in ~ -distance, the other through a Tuning screw are adjustable. 2. Umschalter nach Patentanspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß zur Erhöhung der Leistungsfähigkeit ein weiterer gleicher Umschalter parallelgeschaltet und die Empfängerausgänge mittels eines 3-dB-Koppler3 zusammengeführt sind.2. Changeover switch according to claim 1, d a d u r c h g e k e n n z e i c h n e t that to increase the efficiency another switch of the same type connected in parallel and the receiver outputs merged by means of a 3 dB coupler3 are.
DE19782825968 1978-06-14 1978-06-14 Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable Ceased DE2825968A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782825968 DE2825968A1 (en) 1978-06-14 1978-06-14 Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782825968 DE2825968A1 (en) 1978-06-14 1978-06-14 Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable

Publications (1)

Publication Number Publication Date
DE2825968A1 true DE2825968A1 (en) 1980-01-03

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DE19782825968 Ceased DE2825968A1 (en) 1978-06-14 1978-06-14 Aerial changeover switch between transmitter and receiver - has two coupling probes in waveguide, leading to coaxial lines, both probes being adjustable

Country Status (1)

Country Link
DE (1) DE2825968A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1127829A (en) * 1954-07-24 1956-12-26 Gutehoffnungshuette Sterkrade Device for the introduction of magnesium or similar reactant into iron castings

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1127829A (en) * 1954-07-24 1956-12-26 Gutehoffnungshuette Sterkrade Device for the introduction of magnesium or similar reactant into iron castings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US-Z.: IRE Transactions on Microwave Theory and Techniques, Nov. 1961, S. 506-512 *

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8120 Willingness to grant licences paragraph 23
8127 New person/name/address of the applicant

Owner name: TELEFUNKEN SYSTEMTECHNIK GMBH, 7900 ULM, DE

8131 Rejection