Title :
A low loss photonic crystal waveguide at millimeter wave
Author :
Kokubo, Yoshihiro ; Kawai, Tadashi ; Ohta, Isao
Author_Institution :
Graduate Sch. of Eng., Himeji Inst. of Technol., Hyogo, Japan
Abstract :
We have presented a new type of photonic crystal (PC) waveguide in our previous report. The waveguide has a low propagation loss at millimeter wave frequencies compared with an NRD (nonradiative dielectric waveguide) guide, but the PC material is difficult to obtain since a relatively high dielectric constant is required. Therefore, this paper presents another low loss PC waveguide constructed of sintered alumina with a dielectric constant of 8.9 which is easy to obtain. Though the loss of the PC guide is twice larger than that of the previous PC waveguide, its loss is less than that of an NRD guide and the bending loss is reasonable.
Keywords :
alumina; dielectric waveguides; millimetre wave devices; permittivity; photonic crystals; Al2O3; NRD guide; bending loss; dielectric constant; low loss photonic crystal waveguide; low loss waveguide; millimeter wave waveguide; nonradiative dielectric waveguide; sintered alumina; waveguide propagation loss; Crystalline materials; Dielectric constant; Dielectric losses; Dielectric materials; Frequency; High-K gate dielectrics; Millimeter wave propagation; Optical losses; Photonic crystals; Propagation losses;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1262239
