Design of 3-D Monolithic MMW Antennas Using Ceramic Stereolithography

Ceramic stereolithography is applied to the construction of 3-D monolithic low-loss subwavelength periodic structures. In the subwavelength regime, it is shown that the effective refractive index can be controlled throughout the structure through simple adjustments to the periodic lattice. The constraints imposed by subwavelength design and the limitations inherent in the ceramic stereolithography process are analyzed and incorporated into the design procedure for monolithic ceramic structures. To demonstrate the proposed method, a monolithic Luneberg lens is designed, fabricated, and measured. The measured results confirm the outlined design procedures and constraints

[1]  T. Barwicz,et al.  Three-dimensional analysis of scattering losses due to sidewall roughness in microphotonic waveguides , 2005, Journal of Lightwave Technology.

[2]  A. J. Moulson,et al.  Electroceramics: Materials, Properties, Applications , 1990 .

[3]  Datta,et al.  Effective dielectric constant of periodic composite structures. , 1993, Physical review. B, Condensed matter.

[4]  K. Button,et al.  Precise Millimeter-Wave Measurements of Complex Refractive Index, Complex Dielectric Permittivity and Loss Tangent of GaAs, Si, SiO/sub 2/, A1/sub 2/O/sub 3/, BeO, Macor, and Glass , 1983 .

[5]  John W. Halloran,et al.  Stereolithography of ceramics. , 1995 .

[6]  Jerzy Krupka,et al.  A dielectric resonator for measurements of complex permittivity of low loss dielectric materials as a function of temperature , 1998 .

[7]  E. Jones,et al.  Highly dispersive photonic band-gap prism. , 1996, Optics letters.

[8]  Xun Gong,et al.  Laser-based polymer stereolithography of vertically integrated narrow bandpass filters operating in K band , 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

[9]  Masaya Notomi,et al.  Theory of light propagation in strongly modulated photonic crystals: Refractionlike behavior in the vicinity of the photonic band gap , 2000 .

[10]  Layer-by-layer stereolithography (SL) of complex medium , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[11]  Thierry Chartier,et al.  Stereolithography for manufacturing ceramic parts , 2000 .

[12]  K. Balmain,et al.  Negative Refraction Metamaterials: Fundamental Principles and Applications , 2005 .

[13]  L. Katehi,et al.  High-Q evanescent-mode filters using silicon micromachining and polymer stereolithography (SL) processing , 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

[14]  Nicorovici,et al.  Photonic Band Gaps: Noncommuting Limits and the "Acoustic Band" , 1995, Physical review letters.

[15]  Xun Gong,et al.  Layer-by-layer polymer stereolithography fabrication for three-dimensional RF components , 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

[16]  L C Kimerling,et al.  Fabrication of ultralow-loss Si/SiO(2) waveguides by roughness reduction. , 2001, Optics letters.

[17]  Paul F. Jacobs,et al.  Stereolithography and other RP&M technologies , 1996 .

[18]  S. Morgan,et al.  General Solution of the Luneberg Lens Problem , 1958 .

[19]  Kin Seng Chiang,et al.  Effective-index method with built-in perturbation correction for the vector modes of rectangular-core optical waveguides , 1999 .