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Phase shifter and phase response of PD in phased-array antennas
Author(s): Wenhui Sun; Jiazheng Sun; Wei Li; Ninghua Zhu
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Paper Abstract

We study the phase requirement in phased-array antennas. Firstly, we present a tunable and wideband microwave photonic phase shifter based on polarization-dependence of the LiNbO3 Mach-Zehender modulator (MZM).With the proposed device, the phase of the optical microwave signal output from the polarizer can be tuned from 0 to 360 degree by simply adjusting the polarization direction of the lights whereas the amplitude keeps constant. A full range tunable phase shifting in the frequency range of 10 - 35 GHz is achieved. Secondly, we focus on the photodetector (PD) phase response with different input optical power and different PD. We study the Phase Retardation in InGaAs Photodetectors. The phase response of different PDs will affect the phased-array antennas.

Paper Details

Date Published: 19 November 2019
PDF: 7 pages
Proc. SPIE 11182, Semiconductor Lasers and Applications IX, 111820A (19 November 2019); doi: 10.1117/12.2538128
Show Author Affiliations
Wenhui Sun, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Jiazheng Sun, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Wei Li, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)
Ninghua Zhu, Institute of Semiconductors (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 11182:
Semiconductor Lasers and Applications IX
Ning Hua Zhu; Werner H. Hofmann; Jian-Jun He, Editor(s)

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