SE9903834D0 - Phased array base station antenna system having distributed low power amplifiers - Google Patents

Phased array base station antenna system having distributed low power amplifiers

Info

Publication number
SE9903834D0
SE9903834D0 SE9903834A SE9903834A SE9903834D0 SE 9903834 D0 SE9903834 D0 SE 9903834D0 SE 9903834 A SE9903834 A SE 9903834A SE 9903834 A SE9903834 A SE 9903834A SE 9903834 D0 SE9903834 D0 SE 9903834D0
Authority
SE
Sweden
Prior art keywords
phase
signals
regulated
base station
antenna
Prior art date
Application number
SE9903834A
Other languages
Swedish (sv)
Other versions
SE9903834L (en
SE521003C2 (en
Inventor
Sang-Gi Kim
Original Assignee
Gamma Nu 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 Gamma Nu Inc filed Critical Gamma Nu Inc
Priority to SE9903834A priority Critical patent/SE521003C2/en
Publication of SE9903834D0 publication Critical patent/SE9903834D0/en
Publication of SE9903834L publication Critical patent/SE9903834L/en
Publication of SE521003C2 publication Critical patent/SE521003C2/en

Links

Classifications

    • 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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The system comprises a first phase-regulated transmitting device, first, second and third decoupling devices, amplifying devices, first and second phase-regulated antennae, phase-regulated duplexing devices, a second phase-regulated device for receiving signal from the duplexer devices via antenna ports, first and second low power amplifiers (23), and a third phase-regulated device for receiving signals from the second antennae via antenna ports. The first phase-regulated device selects an input signal via a number of beam ports (b1-b8) and splits it into signals for sending via antenna ports (a1-a8), each of the signals having a linear phase difference according to a difference in wavelength distribution. The first decoupling device for receiving an input signal from a base station selects one of the beam ports in the first phase-regulated device and sends it to the chosen beam port in response to a control signal sent from from the base station. The amplifying devices have a pre-determined amplifying factor and are used to amplify signals supplied via the antenna ports in the first phase-regulated device. The first antenna transmits signals from the amplifying devices, associated with which is a spatial output numbering in a direction fir a single-phase plane (27) allowing an effective transmittance sufficient to cover a cell in a controlled direction chosen by the first decoupling device. The first antenna is also used to receive a signal sent from a mobile station. The duplexing device sends signals from the first low power amplifiers to the first antenna, and also receive and send signals from this antenna. Each of the signals received by the second phase-regulated device has a linear phase difference. The second phase-regulated device is also used to allow the signals to be in phase and to strengthen them at a beam port. The second decoupling device selects the strenghtened signal in response to a control signal sent from the base station. The amplifiers are both used to amplify a selected signal and send it to the base station. The second antenna is used to receive a signal sent from a mobile station. Each of the signals received by the third phase-regulated device has a linear phase difference. The third phase-regulated device is also used to allow the signals to be in phase and to strengthen them at a beam port. The third decoupling device selects the strengthened signal in response to a control signal sent from the base station.
SE9903834A 1999-10-25 1999-10-25 Phased array base station antenna system with polarisation diversity, comprises phase regulated input and output devices, decoupling system and low power amplifiers SE521003C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9903834A SE521003C2 (en) 1999-10-25 1999-10-25 Phased array base station antenna system with polarisation diversity, comprises phase regulated input and output devices, decoupling system and low power amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903834A SE521003C2 (en) 1999-10-25 1999-10-25 Phased array base station antenna system with polarisation diversity, comprises phase regulated input and output devices, decoupling system and low power amplifiers

Publications (3)

Publication Number Publication Date
SE9903834D0 true SE9903834D0 (en) 1999-10-25
SE9903834L SE9903834L (en) 2001-06-18
SE521003C2 SE521003C2 (en) 2003-09-23

Family

ID=20417467

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903834A SE521003C2 (en) 1999-10-25 1999-10-25 Phased array base station antenna system with polarisation diversity, comprises phase regulated input and output devices, decoupling system and low power amplifiers

Country Status (1)

Country Link
SE (1) SE521003C2 (en)

Also Published As

Publication number Publication date
SE9903834L (en) 2001-06-18
SE521003C2 (en) 2003-09-23

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Legal Events

Date Code Title Description
NUG Patent has lapsed