CA1002618A - Spectrum reuse with independently rotatable receive and transmit polarizations - Google Patents

Spectrum reuse with independently rotatable receive and transmit polarizations

Info

Publication number
CA1002618A
CA1002618A CA180,744A CA180744A CA1002618A CA 1002618 A CA1002618 A CA 1002618A CA 180744 A CA180744 A CA 180744A CA 1002618 A CA1002618 A CA 1002618A
Authority
CA
Canada
Prior art keywords
independently rotatable
spectrum reuse
rotatable receive
transmit polarizations
polarizations
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
CA180,744A
Other versions
CA180744S (en
Inventor
Peter Foldes
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 Inc
Original Assignee
RCA Inc
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 Inc filed Critical RCA Inc
Application granted granted Critical
Publication of CA1002618A publication Critical patent/CA1002618A/en
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
CA180,744A 1972-09-22 1973-09-11 Spectrum reuse with independently rotatable receive and transmit polarizations Expired CA1002618A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1002618A true CA1002618A (en) 1976-12-28

Family

ID=10431519

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,744A Expired CA1002618A (en) 1972-09-22 1973-09-11 Spectrum reuse with independently rotatable receive and transmit polarizations

Country Status (5)

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

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 (en) * 1971-09-02 1973-05-12

Also Published As

Publication number Publication date
DE2366445C2 (en) 1989-09-28
JPS5537136B2 (en) 1980-09-26
JPS4971810A (en) 1974-07-11
DE2347719A1 (en) 1974-04-04
GB1411991A (en) 1975-10-29
FR2200644B1 (en) 1979-06-01
AU6035673A (en) 1975-03-20
FR2200644A1 (en) 1974-04-19

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