Title :
PIM characteristics of resistive loads
Author :
Yamamoto, Yasuyuki ; Kuga, Nobuhiro
Author_Institution :
Fac. of Eng., Yokohama Nat. Univ., Japan
Abstract :
Passive intermodulation (PIM) characteristics of resistive components are experimentally investigated. Resistive dummy loads and attenuator are employed as DUTs, and they are evaluated by the 2-tone test in 2GHz band. It is shown that the PIM has saturation characteristics for high power excitation such as 43dBm × 2-tone although it obeys to the ideal theory in low power excitation. The saturation in the high power excitation is also evaluated with the slope factor introduced in this paper, which shows a difference in PIM saturation characteristics between resistive load and nonresistive element. By circuit simulation, the influence of resistance value on PIM level is investigated. PIM reduction technique by using attenuators is also proposed and its validity is confirmed by experiment.
Keywords :
attenuators; electrical resistivity; intermodulation; 2 GHz; 2-tone test; PIM saturation characteristics; attenuator circuit; high power excitation; low power excitation; passive intermodulation characteristics; resistive components; resistive dummy loads; Attenuators; Circuit simulation; Conductors; Connectors; Distributed parameter circuits; Electrical resistance measurement; Power cables; Power transmission lines; Testing; Transmission line theory;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607015
