Chinese Optics Letters, 2014, 12 (4): 040401, Published Online: Apr. 10, 2014
Compact waveguide bandpass f ilter employing two-dimensional metallic photonic crystals for millimeter to terahertz frequencies Download: 565次
040.2235 Far infrared or terahertz 120.2440 Filters 050.5298 Photonic crystals 120.7000 Transmission
Abstract
Two-dimensional metallic photonic crystal slabs with square lattice are proposed to be used for the design of waveguide bandpass filters operating in millimeter to terahertz region. Filter characteristics are studied when rod radii and lattice constants are changed. Based on the frequency scaling technique, a series of higher frequency filters has been designed. By using laser drilling and welding processing techniques, a compact waveguide filter embedded in an EIA-WR10 waveguide with central frequency 145.5 GHz and 3-dB bandwidth of 5.26 GHz is fabricated and measured. The measurement data agree well with the simulation prediction.
Feng Lan, Ziqiang Yang, Limei Qi, Zongjun Shi. Compact waveguide bandpass f ilter employing two-dimensional metallic photonic crystals for millimeter to terahertz frequencies[J]. Chinese Optics Letters, 2014, 12(4): 040401.