Microstrip Yagi Antenna Stacked with Optical Modulator for 28GHz Communication

We propose a new microstrip Yagi antenna stacked with optical modulator for supporting future 5G wireless communication. The proposed device consists of a microstrip antenna on low-k dielectric substrate and a modulation resonant electrode on electro-optic (EO) crystal. The received wireless microwave signals by the antenna from free space are transferred to the resonant electrode. The standing-wave microwave electric fields along the electrode can be used for optical modulation through EO effects. The detail characteristics of the proposed device are analyzed for 28GHz microwave bands. The proposed device with simple and compact structure can be used for broadband wireless communication through radio-over-fiber technology.