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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 11 — Apr. 10, 2013
  • pp: 2218–2225

Dielectrically embedded flat mesh lens for millimeter waves applications

Giampaolo Pisano, Ming Wah Ng, Fahri Ozturk, Bruno Maffei, and Vic Haynes  »View Author Affiliations


Applied Optics, Vol. 52, Issue 11, pp. 2218-2225 (2013)
http://dx.doi.org/10.1364/AO.52.002218


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Abstract

A flat lens based on subwavelength periodic metal meshes has been developed using photolithographic techniques. These mesh grids are stacked at specific distances and embedded in polypropylene. A code was developed to optimize more than 1000 transmission line circuits required to vary the device phase shift across the lens flat surface, mimicking the behavior of a classical lens. A W-band mesh-lens prototype was successfully manufactured and its RF performance characterized using a vector network analyzer coupled to corrugated horn antennas. Co-polarization far-field beam patterns were measured and compared with finite-element method models. The excellent agreement between data and simulations validated our designing tools and manufacturing procedures. This mesh lens is a low-loss, robust, light, and compact device that has many potential applications including millimeter wave quasi-optical systems for future cosmic microwave background polarization instruments.

© 2013 Optical Society of America

OCIS Codes
(120.3620) Instrumentation, measurement, and metrology : Lens system design
(160.3918) Materials : Metamaterials

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 27, 2012
Revised Manuscript: February 27, 2013
Manuscript Accepted: February 27, 2013
Published: April 3, 2013

Citation
Giampaolo Pisano, Ming Wah Ng, Fahri Ozturk, Bruno Maffei, and Vic Haynes, "Dielectrically embedded flat mesh lens for millimeter waves applications," Appl. Opt. 52, 2218-2225 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-11-2218

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