MULTILAYER GRID POLARIZERS: SIMULATIONS FOR MILLIMETER WAVES
- Resource Type
- Authors
- and Sencer Koc; V. Yurchenko; Marcin Gradziel; Mehmet Ciydem
- Source
- Progress In Electromagnetics Research C. 114:69-82
- Subject
- Materials science
Optics
law
business.industry
Physics::Optics
Millimeter
Polarizer
business
Grid
Electronic, Optical and Magnetic Materials
law.invention
- Language
- ISSN
- 1937-8718
Multilayer grid polarizers for millimeter waves produced with photolithographic technology have been simulated. Polarizers have spectral bands of enhanced performance where polarization extinction ratio in decibels grows in proportion to the number of layers. Full-wave modeling is compared with three asymptotic models for subwavelength gratings using adjusted grating parameters. Random variations of interlayer spacings reduce the enhancement of polarizing performance, yet the latter continues to grow in proportion to the number of layers. Broadband signal detection is also considered.