Optoelectronic modulation of mm-wave beams using a a semiconductor substrate

Tom F. Gallacher; Rune Sondena; Duncan Alexander Robertson; Graham Murray Smith

doi:10.1109/TMTT.2012.2193142

Optoelectronic modulation of mm-wave beams using a a semiconductor substrate

Tom F. Gallacher, Rune Sondena, Duncan Alexander Robertson, Graham Murray Smith

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Modulation of millimeter and submillimeter-wave beams via an optically excited semiconductor substrate is a potentially powerful technique, but typically requires high optical illumination densities. Various methods are outlined that yield reduced illumination levels and enable optimization of the substrate. As an example device, the photo-injected Fresnel zone plate antenna (piFZPA) is presented, and we discuss the realization of this spatial modulating device at millimeter-wave frequencies. Preliminary data is presented demonstrating the realization of a 100-mm aperture F/1.2 piFZPA at 94 GHz, using a retail visible data projector as a programmable broadband light source and spatial light modulator. The demonstrated antenna can be steered precisely in two dimensions and yielded a 36-dBi directivity with excellent mainlobe symmetry, and a 12-dB peak sidelobe level.

Original language	English
Pages (from-to)	2301 - 2309
Number of pages	10
Journal	IEEE Microwave Theory and Techniques
Early online date	7 May 2012
DOIs	https://doi.org/10.1109/TMTT.2012.2193142
Publication status	Published - Jul 2012

Keywords

Fresnel zone plate
beam steering
optically controlled antenna
opto-electronic
photo-injected Fresnel zone plate
beam forming

Access to Document

10.1109/TMTT.2012.2193142

1 Conference contribution

Millimeter-wave beam forming and dynamic steering using an optically controlled photo-injected Fresnel zone plate antenna at 94 GHz
Gallacher, T. F., Robertson, D. A. & Smith, G. M., 2012, PASSIVE AND ACTIVE MILLIMETER-WAVE IMAGING XV. Wikner, D. & Luukanen, A. (eds.). BELLINGHAM: SPIE, p. - 9 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cite this

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title = "Optoelectronic modulation of mm-wave beams using a a semiconductor substrate",

abstract = "Modulation of millimeter and submillimeter-wave beams via an optically excited semiconductor substrate is a potentially powerful technique, but typically requires high optical illumination densities. Various methods are outlined that yield reduced illumination levels and enable optimization of the substrate. As an example device, the photo-injected Fresnel zone plate antenna (piFZPA) is presented, and we discuss the realization of this spatial modulating device at millimeter-wave frequencies. Preliminary data is presented demonstrating the realization of a 100-mm aperture F/1.2 piFZPA at 94 GHz, using a retail visible data projector as a programmable broadband light source and spatial light modulator. The demonstrated antenna can be steered precisely in two dimensions and yielded a 36-dBi directivity with excellent mainlobe symmetry, and a 12-dB peak sidelobe level.",

keywords = "Fresnel zone plate, beam steering, optically controlled antenna, opto-electronic, photo-injected Fresnel zone plate, beam forming",

author = "Gallacher, {Tom F.} and Rune Sondena and Robertson, {Duncan Alexander} and Smith, {Graham Murray}",

year = "2012",

month = jul,

doi = "10.1109/TMTT.2012.2193142",

language = "English",

pages = "2301 -- 2309",

journal = "IEEE Microwave Theory and Techniques",

issn = "0018-9480",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Optoelectronic modulation of mm-wave beams using a a semiconductor substrate

AU - Gallacher, Tom F.

AU - Sondena, Rune

AU - Robertson, Duncan Alexander

AU - Smith, Graham Murray

PY - 2012/7

Y1 - 2012/7

N2 - Modulation of millimeter and submillimeter-wave beams via an optically excited semiconductor substrate is a potentially powerful technique, but typically requires high optical illumination densities. Various methods are outlined that yield reduced illumination levels and enable optimization of the substrate. As an example device, the photo-injected Fresnel zone plate antenna (piFZPA) is presented, and we discuss the realization of this spatial modulating device at millimeter-wave frequencies. Preliminary data is presented demonstrating the realization of a 100-mm aperture F/1.2 piFZPA at 94 GHz, using a retail visible data projector as a programmable broadband light source and spatial light modulator. The demonstrated antenna can be steered precisely in two dimensions and yielded a 36-dBi directivity with excellent mainlobe symmetry, and a 12-dB peak sidelobe level.

AB - Modulation of millimeter and submillimeter-wave beams via an optically excited semiconductor substrate is a potentially powerful technique, but typically requires high optical illumination densities. Various methods are outlined that yield reduced illumination levels and enable optimization of the substrate. As an example device, the photo-injected Fresnel zone plate antenna (piFZPA) is presented, and we discuss the realization of this spatial modulating device at millimeter-wave frequencies. Preliminary data is presented demonstrating the realization of a 100-mm aperture F/1.2 piFZPA at 94 GHz, using a retail visible data projector as a programmable broadband light source and spatial light modulator. The demonstrated antenna can be steered precisely in two dimensions and yielded a 36-dBi directivity with excellent mainlobe symmetry, and a 12-dB peak sidelobe level.

KW - Fresnel zone plate

KW - beam steering

KW - optically controlled antenna

KW - opto-electronic

KW - photo-injected Fresnel zone plate

KW - beam forming

U2 - 10.1109/TMTT.2012.2193142

DO - 10.1109/TMTT.2012.2193142

M3 - Article

SN - 0018-9480

SP - 2301

EP - 2309

JO - IEEE Microwave Theory and Techniques

JF - IEEE Microwave Theory and Techniques

ER -

Optoelectronic modulation of mm-wave beams using a a semiconductor substrate

Abstract

Keywords

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Research output

Millimeter-wave beam forming and dynamic steering using an optically controlled photo-injected Fresnel zone plate antenna at 94 GHz

Cite this