Array of patch-antennas with meandering-gaps on optical modulator for wireless millimeter-wave beam-steering. Issue 4 (16th March 2016)

• Record Type: Journal Article
• Authors: Wijayanto, Yusuf Nur; Kanno, Atsushi; Murata, Hiroshi; Kawanishi, Tetsuya; Yamamoto, Naokatsu; Okamura, Yasuyuki
• Editors: Barataud, Denis; Tournier, Éric; Lalande, Michèle
• Is Part Of: International journal of microwave and wireless technologies. Volume 8:Issue 4/5(2016)
• Page Start: 759
• Page End: 765
• Publication Date: 2016-03-16
• Subjects: Antennas and propagation for wireless systems, -- Microwave photonics; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078716000210
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract : An array of patch-antennas with meandering-gaps on an optical modulator is proposed for wireless millimeter-wave beam-steering through high-speed radio-over-fiber systems. Wireless millimeter-wave can be received by the array of patch-antennas and directly modulated to lightwave by the optical modulator. The wireless millimeter-wave can be steered using the meandering-gaps at the patch-antennas by controlling interaction between millimeter-wave and lightwave electric fields in electro-optic modulation. The basic operation and analysis of the proposed device are discussed. In the experiment, 5 × 5 antenna array in 40 GHz millimeter-wave bands was designed and realized for device characterization and demonstration to wireless millimeter-wave beam-steering. There were five variations of wireless millimeter-wave beam-steering for one-dimensional in xz- or yz-planes that can be obtained with wireless millimeter-wave steerable beams of about ±30°. Additionally, 25 variations of wireless beam-steering can be obtained for two dimension in xyz-space through orthogonal optical modulation. The proposed device is promising to be applied in millimeter-wave/tera-hertz bands for future directional wireless communication and sensing with high-speed and high-resolution operation.