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

fYear

2014

fDate

26-29 July 2014

Firstpage

895

Lastpage

897

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4799-4355-5

Type

conf

DOI

10.1109/APCAP.2014.6992644

Filename

6992644