文章基本信息

标题：Adaptive Calibration Method in Multiport Amplifier for K-Band Payload Applications
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作者：Moon, Seong-Mo ; Shin, Dong-Hwan ; Lee, Hong-Yul 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2013
卷号：35
期号：4
页码：718-721
DOI：10.4218/etrij.13.0212.0534
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：This letter proposes a novel calibration method for a multiport amplifier (MPA) to achieve optimum port-to-port isolation by correcting both the amplitude and phase of the calibration signals. The proposed architecture allows for the detection of the phase error and amplitude error in each RF signal path simultaneously and can enhance the calibrated resolution by controlling the analog phase shifters and attenuators. The designed and MPAs show isolation characteristics of 30 dB and 27 dB over a frequency range of 19.5 GHz to 22.5 GHz, respectively.
关键词：Multiport amplifier (MPA);phase shifter;attenuator;drive amplifier;microwave monolithic integrated circuit (MMIC);calibration;port-to-port isolation