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Title: Two-octave digital all-pass phase shifters for phased array applications
Authors: Fang, H.R.
Tang, X. 
Mouthaan, K. 
Guinvarc'H, R.
Keywords: all-pass networks
Wideband phase shifters
Issue Date: 2013
Citation: Fang, H.R.,Tang, X.,Mouthaan, K.,Guinvarc'H, R. (2013). Two-octave digital all-pass phase shifters for phased array applications. IEEE Radio and Wireless Symposium, RWS : 169-171. ScholarBank@NUS Repository.
Abstract: Wideband Digital phase shifters with two octaves bandwidth and phase shifts of 180° and 90° from 600 MHz to 2400 MHz based on All-Pass Networks (APN) are presented. Ideally, this type of phase shifters has extremely good wideband performance. Practically, however, it is difficult to achieve due to the performance variance of the large number of required discrete components. For the first time, this problem is addressed by performing a Monte Carlo analysis to identify the main sensitivities. For validation, four 2-bit phase shifters are realized with the most critical components tuned, based on the analysis. A return loss larger than 10 dB, maximum phase error of ±5.8°, ±3.6° and ±8.8° for phase shifts of 90°, 180° and 270° are consistently obtained in all the realizations. © 2013 IEEE.
Source Title: IEEE Radio and Wireless Symposium, RWS
ISBN: 9781467329309
ISSN: 21642958
DOI: 10.1109/RWS.2013.6486677
Appears in Collections:Staff Publications

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