GB1411991A - Adjustable polarization system - Google Patents

Adjustable polarization system

Info

Publication number
GB1411991A
GB1411991A GB4405072A GB4405072A GB1411991A GB 1411991 A GB1411991 A GB 1411991A GB 4405072 A GB4405072 A GB 4405072A GB 4405072 A GB4405072 A GB 4405072A GB 1411991 A GB1411991 A GB 1411991A
Authority
GB
United Kingdom
Prior art keywords
port
hybrid
signals
phase
polarization
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
GB4405072A
Other languages
English (en)
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
Priority to GB4405072A priority Critical patent/GB1411991A/en
Priority to CA180,744A priority patent/CA1002618A/en
Priority to AU60356/73A priority patent/AU482790B2/en
Priority to FR7333656A priority patent/FR2200644B1/fr
Priority to DE19732366445 priority patent/DE2366445C2/de
Priority to JP10743073A priority patent/JPS5537136B2/ja
Priority to DE19732347719 priority patent/DE2347719A1/de
Priority to US52488874 priority patent/USRE28546E/en
Publication of GB1411991A publication Critical patent/GB1411991A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Relay Systems (AREA)
  • Radio Transmission System (AREA)
GB4405072A 1972-09-22 1972-09-22 Adjustable polarization system Expired GB1411991A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB4405072A GB1411991A (en) 1972-09-22 1972-09-22 Adjustable polarization system
CA180,744A CA1002618A (en) 1972-09-22 1973-09-11 Spectrum reuse with independently rotatable receive and transmit polarizations
AU60356/73A AU482790B2 (en) 1972-09-22 1973-09-17 Spectrum reuse with independently rotatable receive and transmit polarizations
FR7333656A FR2200644B1 (enExample) 1972-09-22 1973-09-19
DE19732366445 DE2366445C2 (enExample) 1972-09-22 1973-09-21
JP10743073A JPS5537136B2 (enExample) 1972-09-22 1973-09-21
DE19732347719 DE2347719A1 (de) 1972-09-22 1973-09-21 Einrichtung zur mehrfachausnutzung des spektrums durch unterschiedliche polarisationen
US52488874 USRE28546E (en) 1972-09-22 1974-11-18 Adjustable polarization antenna system

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
GB1411991A true GB1411991A (en) 1975-10-29

Family

ID=10431519

Family Applications (1)

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

Country Status (5)

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

Cited By (3)

* 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
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
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 (enExample) * 1971-09-02 1973-05-12

Cited By (10)

* 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
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US7577400B2 (en) 2000-08-02 2009-08-18 Atc Technologies, Llc Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7593726B2 (en) 2000-08-02 2009-09-22 Atc Technologies, Llc Coordinated satellite-terrestrial frequency reuse
US7636567B2 (en) 2000-08-02 2009-12-22 Atc Technologies, Llc Coordinated satellite-terrestrial frequency reuse
US7706746B2 (en) 2000-08-02 2010-04-27 Atc Technologies, Llc Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7831251B2 (en) 2000-08-02 2010-11-09 Atc Technologies, Llc Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7907893B2 (en) 2000-08-02 2011-03-15 Atc Technologies, Llc Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US8369775B2 (en) 2000-08-02 2013-02-05 Atc Technologies, Llc 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

Also Published As

Publication number Publication date
JPS4971810A (enExample) 1974-07-11
CA1002618A (en) 1976-12-28
DE2366445C2 (enExample) 1989-09-28
FR2200644B1 (enExample) 1979-06-01
AU6035673A (en) 1975-03-20
JPS5537136B2 (enExample) 1980-09-26
FR2200644A1 (enExample) 1974-04-19
DE2347719A1 (de) 1974-04-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee