Antennas and Antenna Arrays

Inkjet printed antennas

UHF Folded slot antenna inkjet printed on paper
(courtesy of Georgia Tech, first prototype (!) 2010)
Inkjetprinted_foldedslot

SIW antennas and arrays

24 GHz SIW 2×2 array (two substrate layers, SIW feed slot coupled to patch array)

OLYMPUS DIGITAL CAMERA

Flexible C-band SIW slot array on PET substrate

SIWslotarrayPET1

SIW Active antennas

Siw_patch_10GHz

Active antennas based on coupled oscillators (SIW)

Xband_SIWactivearray_top1 Xband_SIWactivearray_bottom1

C-band 4×4 coupled oscillator array
(Reflectarray PCT/EP2009/061316. Granted patent: ES2384836)

COA_2D_1

S-band self-oscillating mixer (SOM) retrodirective array

RetrodirectiveArray2x1_Sband

X-band 2nd harmonic coupled oscillator array antenna

ActiveOscillatorAntenna3x1_HarmonicRadiation_Xband