GB889468A - Improvements in or relating to microwave switching arrangements - Google Patents

Improvements in or relating to microwave switching arrangements

Info

Publication number
GB889468A
GB889468A GB5425/60A GB542560A GB889468A GB 889468 A GB889468 A GB 889468A GB 5425/60 A GB5425/60 A GB 5425/60A GB 542560 A GB542560 A GB 542560A GB 889468 A GB889468 A GB 889468A
Authority
GB
United Kingdom
Prior art keywords
circulator
receiver
transmitter
branches
short
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
Application number
GB5425/60A
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 AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB889468A publication Critical patent/GB889468A/en
Expired 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
    • H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
    • 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
    • H01P1/11—Auxiliary devices for switching or interrupting by ferromagnetic devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
    • H03H7/487—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source particularly adapted as coupling circuit between transmitters and antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Abstract

889,468. R.F. couplings. TELEFUNKEN G.m.b.H. Feb. 16, 1960 [March 21, 1959], No. 5425/60. Class 40(7). [Also in Group XL(b)] A microwave switch comprises a circulator having an adjustable short-circuit in the form of a movable conductive member in at least one branch. In the embodiment shown, two such switches, comprising ferrite 4-port circulators Z 1 , Z 2 , Fig. 1, are used to selectively connect two T.R. sets FG 1 , FG 2 (one of these being a standby) to a comon aerial A. The set FG 1 comprises a transmitter S 1 , using a frequency f 1 , and receiver E 1 , using a frequency f 2 , connected to the circulator Z 1 in the usual manner so as to decouple transmitter and receiver. The transmitter and receiver S 2 , E 2 of set FG 2 are connected in a similar manner to the circulator Z 2 and the remaining terminals of Z 2 are connected to the circulator Z 1 and to a matched load R. During operation of the set FG 1 the conductive members of adjustable short-circuits K 1 , K 2 are in their withdrawn, open-circuit, positions and have no effect. When it is desired to operate the standby set FG 2 the conductive members are moved to short-circuit branches L 11 , L 31 and wave-energy in these branches is reflected at the short-circuits. Thus the aerial A is coupled to the second circulator Z 2 and the second circulator is coupled to the aerial, the two circulators being effective to de-couple transmitter S 2 and receiver E 2 in the usual manner. The circulator branches connected to the transmitters and receivers may incorporate band-pass filters of the multi-cavity type and the movable members of the adjustable short-circuits may be arranged to de-tune a filter cavity in each of the branches L 11 , L 31 in order to render the filters reflective. In the modified arrangement of Fig. 3, receivers and transmitters S 1 , S 2 , E 1 , E 2 of T.R. sets FG 1 , FG 2 are connected through multi-cavity filters F 1 , F 3 , F 2 , F 4 to two branches of a single circulator, each common to the transmitter and receiver of a T.R. set. The separate branch of each transmitter and each receiver are made one quarterwavelength long between each filter and the common junction. In this arrangement it is only necessary to have two short-circuits either in the filters of S 1 and Eg or of E, and S 2 .
GB5425/60A 1959-03-21 1960-02-16 Improvements in or relating to microwave switching arrangements Expired GB889468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959T0016433 DE1068775B (en) 1959-03-21 1959-03-21 Switching device for microwave ovens

Publications (1)

Publication Number Publication Date
GB889468A true GB889468A (en) 1962-02-14

Family

ID=7548254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5425/60A Expired GB889468A (en) 1959-03-21 1960-02-16 Improvements in or relating to microwave switching arrangements

Country Status (5)

Country Link
CH (1) CH377891A (en)
DE (1) DE1068775B (en)
FR (1) FR1249699A (en)
GB (1) GB889468A (en)
NL (1) NL249492A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2178153A1 (en) * 2008-10-20 2010-04-21 Alcatel, Lucent Network element for a multiband mobile coomunications system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273016B (en) * 1961-11-16 1968-07-18 Telefunken Patent Multi-channel scattering transmission system for dual space diversity
DE3226728A1 (en) * 1982-07-16 1984-01-19 ANT Nachrichtentechnik GmbH, 7150 Backnang MICROWAVE SWITCH ARRANGEMENT WITH TRANSMITTER OR RECEIVER REPLACEMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2178153A1 (en) * 2008-10-20 2010-04-21 Alcatel, Lucent Network element for a multiband mobile coomunications system

Also Published As

Publication number Publication date
FR1249699A (en) 1960-12-30
DE1068775B (en) 1959-11-12
NL249492A (en) 1964-04-10
CH377891A (en) 1964-05-31

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