Title :
Prediction of passive intermodulation based on tunneling effect
Author :
Xiaoxiao Li ; Wanzhao Cui
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Space Microwave Technol, China Acad. of Space Technol., Xi´an, China
Abstract :
Tuning mechanism is considered to be a PIM source in coaxial resonator. A study of the influence on PIM by the placement of tuning mechanism has been made in this paper. The current on the resonance rod is used to calculate tunneling current, which is employed to predict the PIM level in a cavity. A method of approximation for nonlinearity is presented, using analytic formula to determine the coefficients of power series. Simulations obtain good results which have a significant meaning to PIM design of microwave cavity filter for low frequency.
Keywords :
approximation theory; cavity resonator filters; intermodulation; microwave filters; tunnelling; PIM source; approximation method; coaxial resonator; microwave cavity filter; passive intermodulation prediction; power series coefficient; resonance rod; tuning mechanism; tunneling current; tunneling effect; Cavity resonators; Current density; Microwave filters; Resonant frequency; Resonator filters; Tuning; Tunneling; PIM; coaxial resonator; power series; tunneling current;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992644
