SE8903349D0 - ADAPTIVE ANTENNA - Google Patents

ADAPTIVE ANTENNA

Info

Publication number
SE8903349D0
SE8903349D0 SE19898903349A SE8903349A SE8903349D0 SE 8903349 D0 SE8903349 D0 SE 8903349D0 SE 19898903349 A SE19898903349 A SE 19898903349A SE 8903349 A SE8903349 A SE 8903349A SE 8903349 D0 SE8903349 D0 SE 8903349D0
Authority
SE
Sweden
Prior art keywords
node
stage
network
antenna array
input
Prior art date
Application number
SE19898903349A
Other languages
Swedish (sv)
Other versions
SE463286B (en
Inventor
* Barton P
Original Assignee
Stc Plc
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 Stc Plc filed Critical Stc Plc
Publication of SE8903349D0 publication Critical patent/SE8903349D0/en
Publication of SE463286B publication Critical patent/SE463286B/en

Links

Classifications

    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling
    • H01Q3/2617—Array of identical elements

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The circuitry for an adaptive antenna array uses a decorrelation network in cascaded stages which follows the principles of our Appln. No. 8316658, GB 2141588, with each node of the network summating two signals. One of these signals is from an antenna array for nodes of the first stage, or from a node of the previous stage depending on which stage of the network is involved, while the other signal is common to that stage (e.g. from PD1). The first such common input (PD1) comes from one antenna array and at each node one input is inverted with respect to the other to effect decorrelation. At each node one input is weighted (W11, W12, W13, etc) and the weights used are continuously updated using a processor which operates in time shared manner, and which samples the output of each node of each stage (Y1 Y2 Y3 Y4 Z1 Z2 Z3). <IMAGE>
SE8903349A 1984-09-29 1989-10-12 ADAPTIVE ANTENNA DEVICE SE463286B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8424643A GB2219140B (en) 1984-09-29 1984-09-29 Adaptive antenna array

Publications (2)

Publication Number Publication Date
SE8903349D0 true SE8903349D0 (en) 1989-10-12
SE463286B SE463286B (en) 1990-10-29

Family

ID=10567455

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903349A SE463286B (en) 1984-09-29 1989-10-12 ADAPTIVE ANTENNA DEVICE

Country Status (2)

Country Link
GB (1) GB2219140B (en)
SE (1) SE463286B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751497B1 (en) * 1990-06-08 1999-04-09 Thomson Trt Defense METHOD AND DEVICE FOR REJECTING A DISTURBING SIGNAL, PARTICULARLY FOR REJECTING AN ELECTRONIC RADIOCOMMUNICATION INTERFERENCE SIGNAL SIGNAL
US6256394B1 (en) * 1996-01-23 2001-07-03 U.S. Philips Corporation Transmission system for correlated signals
SE511422C2 (en) * 1997-10-20 1999-09-27 Radio Design Innovation Tj Ab Antenna group in a telecommunications system

Also Published As

Publication number Publication date
SE463286B (en) 1990-10-29
GB2219140A (en) 1989-11-29
GB2219140B (en) 1990-03-28
GB8424643D0 (en) 1989-09-20

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