FR2200644B1 - - Google Patents

Info

Publication number
FR2200644B1
FR2200644B1 FR7333656A FR7333656A FR2200644B1 FR 2200644 B1 FR2200644 B1 FR 2200644B1 FR 7333656 A FR7333656 A FR 7333656A FR 7333656 A FR7333656 A FR 7333656A FR 2200644 B1 FR2200644 B1 FR 2200644B1
Authority
FR
France
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
FR7333656A
Other versions
FR2200644A1 (fr
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2200644A1 publication Critical patent/FR2200644A1/fr
Application granted granted Critical
Publication of FR2200644B1 publication Critical patent/FR2200644B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/04—Multimode antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
FR7333656A 1972-09-22 1973-09-19 Expired FR2200644B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4405072A GB1411991A (en) 1972-09-22 1972-09-22 Adjustable polarization system

Publications (2)

Publication Number Publication Date
FR2200644A1 FR2200644A1 (fr) 1974-04-19
FR2200644B1 true FR2200644B1 (fr) 1979-06-01

Family

ID=10431519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333656A Expired FR2200644B1 (fr) 1972-09-22 1973-09-19

Country Status (5)

Country Link
JP (1) JPS5537136B2 (fr)
CA (1) CA1002618A (fr)
DE (2) DE2366445C2 (fr)
FR (1) FR2200644B1 (fr)
GB (1) GB1411991A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357013A (en) * 1954-02-26 1967-12-05 Gerald E Hart System for arbitrary antenna polarization control
US3369234A (en) * 1962-10-03 1968-02-13 Navy Usa Polarization control apparatus
JPS4833754A (fr) * 1971-09-02 1973-05-12

Also Published As

Publication number Publication date
DE2366445C2 (fr) 1989-09-28
JPS5537136B2 (fr) 1980-09-26
JPS4971810A (fr) 1974-07-11
DE2347719A1 (de) 1974-04-04
GB1411991A (en) 1975-10-29
AU6035673A (en) 1975-03-20
CA1002618A (en) 1976-12-28
FR2200644A1 (fr) 1974-04-19

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Legal Events

Date Code Title Description
ST Notification of lapse