3-D-printed X/Ku-band High-gain Integrated Lens MIMO Antenna Using CPW-fed Magnetoelectric dipoles

A four-element high-gain multiple-input multiple-output (MIMO) antenna array covering X and Ku bands is presented that utilizes three-dimensional (3-D)-printed integrated lens antenna (ILA) as the MIMO element. The ILA uses a dielectric-embedded magnetoelectric (ME) dipole as the radiating element to obtain antenna miniaturization and wide impedance bandwidth (IBW). Full-wave simulations exhibits a total active reflection coefficient, |TARC| and |S
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|$\leq-10$dB, for 75% bandwidth while minimum isolation is above 25 dB. The peak gain is $\sim$10.9 dBi while the envelope correlation coefficient (ECC) is $\leq$0.003. The measured element prototype exhibits IBW of 75% and maximum measured realized gain of 10.7 dBi wherein the footprint at lowest operating wavelength is 0.69$\lambda^{2}$.