GB2462027A - Apparatus and method relating to time-delay systems for phased-array antennas - Google Patents

Apparatus and method relating to time-delay systems for phased-array antennas Download PDF

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Publication number
GB2462027A
GB2462027A GB0919123A GB0919123A GB2462027A GB 2462027 A GB2462027 A GB 2462027A GB 0919123 A GB0919123 A GB 0919123A GB 0919123 A GB0919123 A GB 0919123A GB 2462027 A GB2462027 A GB 2462027A
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GB
United Kingdom
Prior art keywords
waveguide
planar
electrical
light beam
phased
Prior art date
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Granted
Application number
GB0919123A
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GB2462027B (en
GB0919123D0 (en
Inventor
Kamal Alameh
Khalid Al-Begain
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UGCS
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UGCS
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Publication of GB0919123D0 publication Critical patent/GB0919123D0/en
Publication of GB2462027A publication Critical patent/GB2462027A/en
Application granted granted Critical
Publication of GB2462027B publication Critical patent/GB2462027B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01Q3/2676—Optically controlled phased array
    • 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
    • H01Q3/2682—Time delay steered arrays

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A time-delay system (10) for a phased-array antenna receiver comprises: a plurality of planar delay elements (50a-z), each arranged to be connected to a different antenna element (30a- z) of the phased-array antenna and each arranged to provide an electrical output signal, and a combiner (70) arranged to receive the electrical output signals from each of the plurality of planar delay elements (50a-z) and to produce a composite output signal. Each planar delay element (50a-z) comprises: an input for receiving an electrical input signal from the antenna element (30a-z) to which the planar delay element (50a-z) is arranged to be connected, a laser (100) for producing a light beam; a modulator arranged to modulate the laser's light beam according to the electrical input signal received from said antenna element (30a-z), and a planar waveguide (110) on a first substrate (140). The waveguide (110) is arranged to guide the laser's light beam. The waveguide (110) includes a plurality of optical taps (158) for transmitting from the waveguide (110) a fraction of the guided light beam. The taps (158) are spaced along the waveguide (110), so that in use a signal carried on the transmitted light has been delayed by a different amount when it reaches each tap (158). Each planar delay element (50a-z) also comprises: a plurality of photodetectors (168), each photodetector (168) being arranged to detect light transmitted by a one of the taps (158) and to generate an electrical photodetector output signal in response to the detected light; and a combiner for combining the photodetector output signals to form the electrical output signal of the planar delay element (50a-z).
GB0919123.0A 2007-03-30 2008-03-28 Apparatus and method relating to time-delay systems for phased-array antennas Expired - Fee Related GB2462027B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0706307A GB0706307D0 (en) 2007-03-30 2007-03-30 Apparatus and method relating to time-delay systems for phased-array antennas
PCT/GB2008/001076 WO2008119958A1 (en) 2007-03-30 2008-03-28 Apparatus and method relating to time-delay systems for phased-array antennas

Publications (3)

Publication Number Publication Date
GB0919123D0 GB0919123D0 (en) 2009-12-16
GB2462027A true GB2462027A (en) 2010-01-27
GB2462027B GB2462027B (en) 2012-04-11

Family

ID=38050606

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0706307A Ceased GB0706307D0 (en) 2007-03-30 2007-03-30 Apparatus and method relating to time-delay systems for phased-array antennas
GB0919123.0A Expired - Fee Related GB2462027B (en) 2007-03-30 2008-03-28 Apparatus and method relating to time-delay systems for phased-array antennas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0706307A Ceased GB0706307D0 (en) 2007-03-30 2007-03-30 Apparatus and method relating to time-delay systems for phased-array antennas

Country Status (2)

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GB (2) GB0706307D0 (en)
WO (1) WO2008119958A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111162844B (en) * 2019-12-25 2023-04-18 中国电子科技集团公司第四十四研究所 Integrated microwave photon receiving and transmitting front end for phased array system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011579A1 (en) * 1991-11-27 1993-06-10 Hughes Aircraft Company Monolithic integrated optical time delay network for antenna beam steering
US6563966B1 (en) * 1999-03-04 2003-05-13 Finisar Corporation, Inc. Method, systems and apparatus for providing true time delayed signals using optical inputs
WO2004092809A1 (en) * 2003-04-16 2004-10-28 Edith Cowan University Microphotonic filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011579A1 (en) * 1991-11-27 1993-06-10 Hughes Aircraft Company Monolithic integrated optical time delay network for antenna beam steering
US6563966B1 (en) * 1999-03-04 2003-05-13 Finisar Corporation, Inc. Method, systems and apparatus for providing true time delayed signals using optical inputs
WO2004092809A1 (en) * 2003-04-16 2004-10-28 Edith Cowan University Microphotonic filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
N F Hartman et al, "IEEE Proceedings of the antennas and propogation society annual meeting, New York, 1991, pages 1132 - 1135, "A new time delay concept using integrated optics techniques". *

Also Published As

Publication number Publication date
GB2462027B (en) 2012-04-11
GB0706307D0 (en) 2007-05-09
WO2008119958A1 (en) 2008-10-09
GB0919123D0 (en) 2009-12-16

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170328