TY - GEN
T1 - Development of 4x4 phased array antenna on chip for 300GHz band application
AU - Kanaya, Haruichi
AU - Tsugami, Kota
AU - Sakano, Goki
AU - Eu, Guan Chai
AU - Kato, Kazutoshi
N1 - Funding Information:
The authors thanks Prof. Tadao Nagatsuma, Osaka University for their support and kind discussion. This work was partly supported by a Strategic Information and Communications R&D Promotion Programme (SCOPE), from the Ministry of Internal Affairs and Communications, Japan, and JSPS Grant-in-Aid for Collaborative Research Programs Based on Industrial Demand, KAKENHI (Kiban-C) and CREST (JPMJCR1431), and Matching Planner Program from Japan Science and Technology Agency, JST.
PY - 2018
Y1 - 2018
N2 - The terahertz (THz) wave applications at frequencies from 100 GHz to 10 THz has attracted much attention, especially in a broadband wireless communication. In the THz broadband wireless devices, photo mixing by using the unitraveling- carrier photodiode (UTC-PD) on the InP substrate is a critical issue, which is down-converted to the optical signal to THz wave. In this situation, the loss in the THz section is a serious problem. Therefore, antennas and transition lines should be fabricated on the same substrate. In our previous research, 1 x 4 and 4 x 4 planar array antennas using one-sided directional slot dipole antenna elements and branched coplanar waveguide (CPW) connected to the output of UTC-PD on the InP substrate is designed. In this paper, 4 x 4 phased array antenna on InP substrate for 300 GHz broadband telecommunication is demonstrated. The total antenna size is 1,930 μm x 2,000 μm x 18 μm. Four 1 x 4 subarray antenna are stacked planarly, and each subarray antenna is connected to the UTC-PD through the CPW. Each antenna element is arranged at the distance of half wavelength in order to sharpen the directivity. By changing the delay line attached to the optical fiber, the phase difference of each subarray can be obtained. From the phase difference between each antenna elements, our proposed phased array antenna has a sharp beam and beam steering characteristics.
AB - The terahertz (THz) wave applications at frequencies from 100 GHz to 10 THz has attracted much attention, especially in a broadband wireless communication. In the THz broadband wireless devices, photo mixing by using the unitraveling- carrier photodiode (UTC-PD) on the InP substrate is a critical issue, which is down-converted to the optical signal to THz wave. In this situation, the loss in the THz section is a serious problem. Therefore, antennas and transition lines should be fabricated on the same substrate. In our previous research, 1 x 4 and 4 x 4 planar array antennas using one-sided directional slot dipole antenna elements and branched coplanar waveguide (CPW) connected to the output of UTC-PD on the InP substrate is designed. In this paper, 4 x 4 phased array antenna on InP substrate for 300 GHz broadband telecommunication is demonstrated. The total antenna size is 1,930 μm x 2,000 μm x 18 μm. Four 1 x 4 subarray antenna are stacked planarly, and each subarray antenna is connected to the UTC-PD through the CPW. Each antenna element is arranged at the distance of half wavelength in order to sharpen the directivity. By changing the delay line attached to the optical fiber, the phase difference of each subarray can be obtained. From the phase difference between each antenna elements, our proposed phased array antenna has a sharp beam and beam steering characteristics.
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U2 - 10.1117/12.2287326
DO - 10.1117/12.2287326
M3 - Conference contribution
AN - SCOPUS:85048883526
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI
A2 - Sadwick, Laurence P.
A2 - Yang, Tianxin
PB - SPIE
T2 - 2017 Conference on Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI
Y2 - 29 January 2018 through 1 February 2018
ER -