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Calibration of Phase Shifters on Basis of Vector-Sum Signals
- Source :
- Radioelectronics and Communications Systems; Том 61, № 11 (2018); 515-521
- Publication Year :
- 2018
- Publisher :
- Allerton Press, 2018.
-
Abstract
- Attenuators and phase shifters which are the circuits for amplitude-phase distribution control are key elements of antenna arrays. Dispersion of technology parameters results in deviation of the characteristics of integral circuits from rated values that requires application of the techniques for this effect compensation. In this paper there are considered the methods for development and calibration of the circuits in a basis of vector-sum signals allowing to modify both amplitude and phase of input high-frequency signal. It is proposed the method of calibration on a basis of interpolation of measured dependences of absolute value and phase of transfer factor on controlling voltage. Application of proposed method for calibration of vector phase shifter with operating frequency band 2.8–3.2 GHz fabricated with 0.18 mm CMOS allows to provide mean square deviation of phase error is not greater than 0.9°. At that amount of required measurements is 20 times decreased comparing known approach on a basis of measurement of all amplitude-phase states.
- Subjects :
- Physics
Basis (linear algebra)
020208 electrical & electronic engineering
Phase (waves)
020206 networking & telecommunications
02 engineering and technology
LabVIEW
vector phase shifter
calibration
vector modulator
CMOS
Amplitude
Control theory
0202 electrical engineering, electronic engineering, information engineering
Calibration
Electrical and Electronic Engineering
Antenna (radio)
Phase shift module
Root-mean-square deviation
Interpolation
Subjects
Details
- ISSN :
- 19348061 and 07352727
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- Radioelectronics and Communications Systems
- Accession number :
- edsair.doi.dedup.....33f11cd6c034c2495b3ede6131842841
- Full Text :
- https://doi.org/10.3103/s073527271811002x