Geometry optimization for application of radio frequency signals on diamond samples

• Main Authors: Ricardo R. Wolf Cruz, Marlio J. C. Bonfim, Wilson A. Artuzi Junior
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
• Series: Journal of Microwaves, Optoelectronics and Electromagnetic Applications
• Subjects: Application of radio frequency magnetic fields; waveguide optimization; printed circuit board design
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742013000200034&lng=en&tlng=en

This work describes the design and optimization of a printed circuit board containing a rectangular half-loop coil designed to apply radio frequency signals on micrometric diamond crystals. The structure was optimized to maximize the magnetic field perpendicular to the coil at 2,87 GHz. In the optimization process we have used transmission line theory, circuit level and 3D electromagnetic simulations. The structure was implemented and measured. The adopted methodology was validated by the good agreement between theory and experiments.