214407 ⎘
Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices; Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices; Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices having corrugations
Broadband circularly polarized patch antenna and method
#2Compact butler matrix, planar two-dimensional beam-former and planar antenna comprising such a butler matrix
#3Photon induced enhanced field electron emission collector
#4Non-cutoff frequency selective surface ground plane antenna assembly
#5Photo induced enhanced field electron emission collector
#6Subwavelength aperture monopulse conformal antenna
#7Broadband convex ground planes for multipath rejection
#8Antenna with resonator having a filtering coating and system including such antenna
#9Low index metamaterial
#10Antenna using a PBG (photonic band gap) material, and system and method using this antenna
#11Active millimeter wave imaging system and method
#12Non-cutoff frequency selective surface ground plane antenna assembly
#13Subwavelength aperture monopulse conformal antenna
#14Patch antenna with comb substrate