Open AccessMeasurement of leakage signal in radio frequency or microwave systems
Author(s) -
Sittakul Vitawat,
Pasakawee Sarinya
Publication year - 2016
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2015.0071
Subject(s) - attenuator (electronics) , leakage (economics) , attenuation , amplitude , microwave , electronic engineering , signal (programming language) , radio frequency , acoustics , electrical engineering , materials science , engineering , physics , computer science , optics , telecommunications , economics , macroeconomics , programming language
This study proposes a setup configuration for leakage signal measurement in a radio frequency or microwave system. The leakage signal usually influences on such a system and basically is defined as a source of uncertainties. In this configuration, a programmable attenuator is used as the device under test (DUT) in the system to fully study the leakage signal effects. The DUT is initially characterised in terms of phase as a function of attenuation before used to represent any electronic device with a specific insertion loss and frequency. Then, the amplitude and phase of the leakage signal are found and compared with the mathematical model to confirm the obtained results. Finally, the maximum amplitude deviation of the leakage signal is found and used to calculate as a limit of leakage error.