Modeling of the microwave phase-shifter output spectrum with effect of phase distortion
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2013, Vol 0, Issue 52
Abstract
Introduction. Nowadays, radio measuring devices began using digital phase shifters (DFS). Although they have several advantages over analog, but there are some problems faced by the developers of radio-electronic devices and systems based on them. In particular, when the frequency is translated, we have information losses contained in the frequency and amplitude. Main body. DFS that based on long transmission-lines do not have these drawbacks, but in the output spectrum of these devices we have an impact of inaccuracy phase and amplitude distortion that occurs during the formation of phase distortion. The authors have modeled the effect of phase distortion on the output spectrum of the DFS. The formula of the original spectrum was obtained as a result by authors. The spectral components at a switching frequency 16kHz and phase distortion ±5° were obtained with the software package Matlab2012a. Conclusion. The greater errors establishment of phase discrete are so much the greater array of side harmonics.
Authors and Affiliations
A. Yanenko, S. Polivkin
Keywords
Related Articles
- EP ID EP309027
- DOI 10.20535/RADAP.2013.52.52-58
- Views 93
- Downloads 0
Creativity of education in radio electronics
The expediency and the methods of introducing creative glass in the educational process of training specialists in radio electronics of all educational qualification levels are offered.
Automation calculating the reliability of the radio electronic facilities
Introduction. Reliability analysis involves the development of appropriate computational models for each indicator reliability assessment and input parameters of the model in the form of reliability parameters of the sys...
Development of control system of robotic platform with ultrasonic radar HC-SR04
Analytical review of known methods of using the ultrasonic radars to detect and round the obstacles is proposed. There are researches of precision distance measurement to the object. It is shown that for distances uncert...
Impedance spectroscopy of Si whiskers in the range of metal-insulator transition
Introduction. The paper deals with investigation of impedance spectroscopy of Si whiskers with doping concentration in the vicinity to metal-insulator transition in the region of low (4,2 – 70 K) temperature and frequenc...
Human functional state definition by the multilevel discrete wavelet transformation of a pulse wave biosignal
The facilities of multilevel discrete wavelet transform of pulse wave biosignal are analysed to estimate the influence of testing factors on the human functional state. It is ascertained, that the nature of wavelet coeff...