Open AccessAdaptive Calibration Method in Multiport Amplifier for K‐Band Payload Applications
Author(s) -
Moon SeongMo,
Shin DongHwan,
Lee Hongyul,
Uhm Manseok,
Yom InBok,
Lee MoonQue
Publication year - 2013
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.13.0212.0534
Subject(s) - payload (computing) , calibration , electronic engineering , amplifier , computer science , engineering , electrical engineering , physics , computer network , cmos , quantum mechanics , network packet
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 2 × 2 and 4 × 4 MPAs show isolation characteristics of 30 dB and 27 dB over a frequency range of 19.5 GHz to 22.5 GHz, respectively.